Gear pump
External Gear Pump . Group 2PDF 4CC-30CC European Diamond Flange Series
Hengyuhang External Gear Pump Group 2PDF European Diamond Flange Series is a robust positive displacement gear pump designed to deliver high volumetric efficiency and stable fluid power under demanding industrial and mobile operating pressures.
| Applications of Hengyuhang External Gear Pump Group 2PDF European Diamond Flange Series
This external gear pump is engineered for heavy-duty fluid transfer and hydraulic circuit pressurization across industrial manufacturing, agricultural machinery, and mobile hydraulic systems. It powers auxiliary functions, steering circuits, and drive mechanisms in equipment operating under continuous high loads and severe environmental conditions.
| Key Technical Specifications
Product Model: Hengyuhang External Gear Pump Group 2PDF European Diamond Flange Series
Brand Replacement: CASAPPA, Rexroth, Marzocchi, Parker OEM or as requested.
Displacement: 4 to 30 cm³/rev
Rotation Direction: Clockwise (D), counter-clockwise (S), reversible (R)
Speed Range: Min. speed 500 to 700 r/min; Max. speed 3000 to 4000 r/min
Peak Pressure: 250 to 300 bar
| Overview of HENGYUHANG Group 2PDF European Diamond Flange Series External Gear Pumps
The HENGYUHANG Group 2PDF European Diamond Flange Series represents specialized continental fluid power engineering, featuring a classic European 2-bolt diamond (rhomboid/oval) mounting spigot flange designed for compact, rigid bell-housing installation. Covering a comprehensive displacement range from 4.0 up to 30.0 cm³/rev, this series is engineered specifically to replace European standard diamond flange gear pumps across 39 leading international hydraulic manufacturers without necessitating intermediate mounting bracket adapters, bell-housing re-machining, or hydraulic piping modifications.
Manufactured with a high-strength extruded aviation-grade aluminum alloy central gear housing paired with heavy-duty spheroidal graphite ductile cast-iron or aluminum front diamond mounting flanges and rear covers, the pump exhibits exceptional structural integrity, resisting casing barrel expansion under continuous operating pressures up to 250 bar (3,625 psi). The internal rotating group incorporates case-hardened, precision-ground alloy steel gears operating within hydrodynamic composite DU/PTFE sleeve bushings. Dual hydrostatic floating axial balance thrust plates automatically adjust operating clearances to compensate for thermal expansion and face wear, maintaining volumetric efficiency above 94% while dampening mechanical vibration and acoustic noise across mobile machinery cabs and industrial production plants.
| Dimension of HENGYUHANG Group 2PDF European Diamond Flange Series External Gear Pumps
Interface data needed with the drawing:
| Item | Value |
|---|---|
| Mounting flange | European standard 2-bolt diamond (rhomboid) flange (pilot Ø 36.5 mm with 96.0 mm bolt center distance / pilot Ø 50.8 mm with 106.0 mm bolt center distance) / Italian standard diamond flange |
| Drive shaft | 1:8 European taper shaft with woodruff key (M12 × 1.25 nut) / Cylindrical keyed shaft (Ø 15.87 mm, Ø 19.05 mm, or Ø 20.0 mm) / Involute splined shaft (DIN 5482 B17x14 or SAE 9T / 11T spline) |
| Outboard bearing | Standard without front bearing (direct bell-housing coupling engagement) / Optional heavy-duty front radial/axial bearing for belt, chain, and pulley drive systems |
| Rotation | Clockwise (D) or Anti-clockwise (S), looking at the drive shaft end (Bi-directional reversible rotation available upon request) |
| Ports position | Side-positioned ports (L) on body / Rear-cover ports (P) for compact manifold block integration |
| Inlet Port | European standard 4-bolt diamond flange (M8 bolts, Ø 20.0 mm or Ø 27.0 mm) / G 3/4" or G 1" BSPP thread / 1-1/16-12 UN SAE O-ring boss |
| Outlet Port | European standard 4-bolt diamond flange (M6/M8 bolts, Ø 15.0 mm or Ø 20.0 mm) / G 1/2" or G 3/4" BSPP thread / 7/8-14 UNF SAE O-ring boss |
| Seals | N — Buna-N (NBR) elastomeric seals (-20 °C to +85 °C) standard; Viton (FKM) available for high-temperature hydraulic fluids (-15 °C to +110 °C) |
| Body construction | High-tensile extruded aluminum alloy body with ductile cast-iron or aluminum European diamond 2-bolt front mounting flange and rear cover |
| 2-Bolt diamond flange tightening torque | 70 ±5 Nm (620 ÷ 664 lbf in) |
| Body tie-rod clamp bolt torque | 60 ±4 Nm (496 ÷ 566 lbf in) |
| Pump Installation Specifications HENGYUHANG Group 2PDF European Diamond Flange Series
The HENGYUHANG Group 2PDF European Diamond Flange Series pump utilizes a standardized modular ordering and specification code to ensure precise mechanical, hydraulic, and mounting interchangeability:
Code structure — reference: 2PDF-ED — Group 2 European Diamond Flange High-Pressure External Gear Pump Series
| Segment | Meaning | Standard Options & Features |
|---|---|---|
| Series | 2PDF-ED | Group 2 high-pressure external gear pump architecture with European diamond 2-bolt flange (4.0 to 30.0 cm³/rev) |
| Displacement | 4.0 to 30.0 | Geometric displacement in cm³/rev (4.0, 6.0, 8.5, 11.0, 14.0, 16.5, 19.5, 22.5, 26.0, 30.0) |
| Rotation | D / S / R | D: Clockwise; S: Anti-clockwise; R: Reversible / Bi-directional |
| Outboard Bearing | 0 / 1 | 0: Standard without front bearing; 1: With heavy-duty front radial/axial support bearing |
| Drive Shaft | T1 / C1 / S1 | T1: 1:8 European taper shaft with woodruff key; C1: Ø 19.05 mm cylindrical keyed shaft; S1: DIN 5482 B17x14 spline |
| Mounting Flange | E2 / D2 | E2: European standard 2-bolt diamond flange (pilot Ø 36.5 mm, 96.0 mm pitch); D2: German/Italian diamond flange (pilot Ø 50.8 mm) |
| Ports Code | L / P | L: Side flanged/threaded body ports; P: Rear cover threaded ports |
| Inlet / Outlet | F2 / G2 / U2 | F2: European 4-bolt diamond flange; G2: BSPP cylindrical thread; U2: SAE straight thread O-ring boss |
| Seals | N / V | N: Buna-N (NBR) standard; V: Viton (FKM) high-temperature seals |
| Special Features | RV / ST | RV: Integrated internal pressure relief valve; ST: Customized OEM body configuration |
| Reading your replacement code
| Your Target Brand & Model | HENGYUHANG 2PDF European Diamond Equivalent | Interchange Verification Notes |
|---|---|---|
| CASAPPA POLARIS PLP20 (Diamond Flange E2) | HENGYUHANG 2PDF European Diamond Series | 100% mounting spigot pilot, 2-bolt diamond pitch, shaft taper, and port centerline match |
| Bosch Rexroth AZPF (European 2-Bolt Diamond Flange) | HENGYUHANG 2PDF European Diamond Series | Identical mounting pilot Ø 36.5 mm, shaft woodruff key, and continuous pressure rating match |
| MARZOCCHI 2P / ALP2 / GHP2 (Diamond Flange E2) | HENGYUHANG 2PDF European Diamond Series | Direct mechanical envelope match; identical inlet/outlet European diamond flange drillings |
| PARKER PGP511 (European 2-Bolt Diamond Flange) | HENGYUHANG 2PDF European Diamond Series | Full hydraulic flow compatibility, exact diamond bolt centers, and drive shaft interchange |
| DANFOSS / Turolla Group 2 (SNP2 Diamond Flange) | HENGYUHANG 2PDF European Diamond Series | Seamless drop-in fit for European tractor implement circuits and industrial HPUs |
| VIVOLO (Vivoil) X2P / XV-2P (European Diamond Flange) | HENGYUHANG 2PDF European Diamond Series | Direct interchange on shaft, 2-bolt diamond ears, and side European diamond flanged ports |
| SALAMI 2PB / 2PE (European Diamond Spigot Flange) | HENGYUHANG 2PDF European Diamond Series | Identical 2-bolt ear hole pattern and gear journal high-pressure ratings |
| BUCHER Hydraulics AP212 (Diamond Mounting Flange) | HENGYUHANG 2PDF European Diamond Series | Direct mounting fit for industrial machine tool clamping and hydraulic elevator systems |
Techspecs — HENGYUHANG Group 2PDF European Diamond Flange Series
Performance Data Across Displacements
| Model Code | Displacement (cm³/rev) | Displacement (in³/rev) | Continuous Pressure p1 (bar / psi) | Intermittent Pressure p2 (bar / psi) | Peak Pressure p3 (bar / psi) | Min. Speed (r/min) | Max. Speed (r/min) | Flow at 1500 r/min (l/min) |
|---|---|---|---|---|---|---|---|---|
| 2PDF-ED-04 | 4.00 | 0.244 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 700 | 4,000 | 6.00 |
| 2PDF-ED-06 | 6.00 | 0.366 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 700 | 4,000 | 9.00 |
| 2PDF-ED-08 | 8.50 | 0.518 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 700 | 3,800 | 12.75 |
| 2PDF-ED-11 | 11.00 | 0.671 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 600 | 3,800 | 16.50 |
| 2PDF-ED-14 | 14.00 | 0.854 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 600 | 3,500 | 21.00 |
| 2PDF-ED-16 | 16.50 | 1.006 | 230 / 3,335 | 255 / 3,698 | 280 / 4,060 | 600 | 3,500 | 24.75 |
| 2PDF-ED-19 | 19.50 | 1.189 | 210 / 3,045 | 235 / 3,408 | 260 / 3,770 | 500 | 3,200 | 29.25 |
| 2PDF-ED-22 | 22.50 | 1.372 | 200 / 2,900 | 225 / 3,263 | 250 / 3,625 | 500 | 3,000 | 33.75 |
| 2PDF-ED-26 | 26.00 | 1.586 | 180 / 2,610 | 205 / 2,973 | 230 / 3,335 | 500 | 3,000 | 39.00 |
| 2PDF-ED-30 | 30.00 | 1.830 | 170 / 2,465 | 190 / 2,755 | 210 / 3,045 | 500 | 2,800 | 45.00 |
Operating Conditions & Fluid Compatibility
| Operating Parameter | Specification | Recommendation & Limits |
|---|---|---|
| Hydraulic fluid type | Mineral oil-based hydraulic fluids | HL or HLP hydraulic oils to ISO 6743/4; DIN 51524 Class 1 and 2 |
| Fluid operating viscosity | 12 to 100 mm²/s (cSt) | Optimal operating viscosity range: 20 to 80 mm²/s (cSt) |
| Max. cold starting viscosity | Up to 1,000 mm²/s (cSt) | Short duration cold start at low speed without excessive load |
| Fluid operating temperature | -20 °C to +85 °C (-4 °F to +185 °F) | Standard NBR seals; Viton (FKM) seals required for +85 °C to +110 °C |
| Inlet suction line pressure | 0.7 to 3.0 bar absolute (10 to 44 psia) | Minimum suction line absolute pressure 0.7 bar (avoid cavitation) |
| Fluid cleanliness level | Class 20/18/15 to ISO 4406 | Recommended filtration: β25 ≥ 75 on return/suction circuit |
Advantages — HENGYUHANG Group 2PDF European Diamond Flange Series
Direct European 2-Bolt Diamond OEM Drop-In Interchangeability
Precision-machined to standard European diamond (rhomboid) mounting flange dimensions (pilot Ø 36.5 mm with 96.0 mm pitch or Ø 50.8 mm with 106.0 mm pitch), 1:8 tapered drive shafts, and port centerlines, enabling immediate 1:1 drop-in replacement across 39 leading global manufacturers.
Compact Diamond Envelope for Confined Installations
The diamond 2-bolt flange layout minimizes physical envelope width, allowing effortless installation into tight mobile engine bays, compact tractor bell housings, and dense industrial hydraulic power pack manifolds where 4-bolt rectangular flanges face clearance restrictions.
High Continuous Pressure Resilience
High-strength extruded aluminum alloy body reinforced with heavy-duty ductile cast-iron or aluminum end covers prevents casing barrel dilation under continuous operating pressures up to 250 bar (3,625 psi).
Outstanding Volumetric Efficiency (>94%)
Hydrostatic floating pressure balance thrust plates automatically compensate for wear and thermal clearance changes, sustaining peak flow output and minimizing internal slip over thousands of operating hours.
Low Acoustic Emission & Pulsation
Precision-shaved, case-hardened alloy steel gear profiles minimize fluid trapping and pressure pulsation, ensuring ultra-quiet operation in mobile machinery cabins and indoor industrial plants.
Flexible Port & Valve Customization
Readily configured with European 4-bolt diamond flanged ports, BSPP cylindrical threaded ports, or integrated pressure relief valves tailored to bespoke customer requirements.
Reference — HENGYUHANG Group 2PDF European Diamond Flange Series
Series Architecture Across Group 2PDF European Diamond Flange Series
The HENGYUHANG Group 2PDF European Diamond Flange family covers 10 standardized displacements, ensuring optimal hydraulic matching:
Low-Displacement High-Pressure Range (4.0 – 8.5 cm³/rev): 2PDF-ED-04, 2PDF-ED-06, 2PDF-ED-08
Intermediate Work-Horse Range (11.0 – 19.5 cm³/rev): 2PDF-ED-11, 2PDF-ED-14, 2PDF-ED-16, 2PDF-ED-19
High-Flow Output Range (22.5 – 30.0 cm³/rev): 2PDF-ED-22, 2PDF-ED-26, 2PDF-ED-30
Comprehensive Interchangeability Matrix Across 39 Brands
The HENGYUHANG Group 2PDF European Diamond Flange Series provides proven mechanical, mounting, and hydraulic drop-in substitution for the following 39 international manufacturers:
ARGO-HYTOS: GP2 Series European diamond flange external gear pumps
ASEDA: Group 2 European 2-bolt diamond tractor implement gear pumps
ATOS: PFG-2 / PFE / PFEO series European diamond external gear pumps
B&C Hydraulics: GR2 series European diamond compact gear pumps
BLUEASCEND: Group 2 diamond flange aluminum gear pumps for mobile machinery
Boden: Boden B2 / BG2 European diamond hydraulic gear pumps
BONDIOLI & PAVESI: HP Series Group 2 diamond gear pumps (HP2, HPL2)
Brevini Fluid Power (Dana Brevini): OT200 / B200 series European diamond compact pumps
BUCHER Hydraulics: AP212 / QX2 series diamond high-pressure gear pumps
Caproni: 20A / 20C / Group 2 European diamond hydraulic gear pumps
CASAPPA: POLARIS Group 2 (PLP20 European diamond flange E2, 2PDF, PL20) gear pumps
CONCENTRIC (Haldex): W900 / Calzoni Group 2 diamond external pumps
DANFOSS Power Solutions: SNP2 / Turolla D Series European diamond Group 2 pumps
DUPLOMATIC: IGP2 / GP2 series European diamond external gear pumps
Galtech: 2SP series European diamond compact gear pumps
GRH Hydraulics: 2PF series European diamond aluminum gear pumps
HANSA-TMP: Group 2 European diamond gear pumps and power pack units
HESPER: Group 2 European diamond mobile hydraulic gear pumps
HIDRAULICA: Group 2 European diamond external gear pumps
HONOR Gear Pumps: Group 2 European diamond series pumps
HPI (Hydraulique Professionnelle Industrielle): Series M2 / P2 diamond gear pumps
HYDAC: PGE200 series European diamond external gear pumps
HYDROMAX: Group 2 European diamond external hydraulic gear pumps
HYDRONIT: Group 2 diamond compact power pack central block gear pumps
JIHOSTROJ: P23 / Q2 Series Group 2 European diamond hydraulic gear pumps
JOYANG: Group 2 European diamond gear pumps for material handling
KOMPASS: Group 2 European diamond industrial gear pumps
KRACHT: KF 2 / KP 2 series European diamond high-performance gear pumps
MARZOCCHI: 2P / ALP2 / GHP2 series European diamond high-pressure gear pumps
MetaHydra: Group 2 European diamond custom gear pumps
PARKER Hannifin: PGP511 / PGP517 Series European diamond Group 2 gear pumps
REXPOWER: Group 2 European diamond external gear pumps
Bosch Rexroth: AZPF Series European 2-bolt diamond Group 2 gear pumps
REXROTH-SIGMA: Sigma Group 2 European diamond gear pumps
RONZIO: 02 Series Group 2 European diamond high-pressure gear pumps
ROQUET: 2L / 2M Series Group 2 European diamond external gear pumps
SALAMI: 2PB / 2PE series European diamond compact gear pumps
SDH (Shengda Hydraulics): Group 2 European diamond gear pumps
VIVOLO (Vivoil): X2P / XV-2P Series Group 2 European diamond gear pumps
Brand Replacement
Quanzhou Hengyuhang Power Technology Co., Ltd. manufactures the Group 2PDF European Diamond Flange Series conforming to international OEM European 2-bolt diamond (rhomboid) mounting standards. Every manufactured pump undergoes 100% end-of-line verification, including volumetric efficiency benchmarking, continuous rated pressure testing, and port thread gauge inspection. Equipment operators and hydraulic distributors can replace worn or discontinued original pumps from CASAPPA, Rexroth, MARZOCCHI, PARKER, and DANFOSS with zero alterations to existing bell housings, electric motor couplings, or hydraulic plumbing. Custom batch manufacturing with specialized drive shafts, special flange spigots, or integrated relief valves is fully supported.
Applications
Mobile Construction Machinery: Mini excavators, compact wheel loaders, backhoe loaders, skid steers, vibratory rollers, and hydraulic trenchers requiring compact European diamond 2-bolt bell-housing mounting.
Agricultural Equipment: Medium-to-high horsepower agricultural tractors, combine harvesters, round balers, front-end loaders, and forestry forwarders.
Material Handling & Aerial Lifts: Forklift main lifting and steering circuits, rough-terrain telehandlers, electric boom lifts, and truck-mounted tail lifts.
Stationary Industrial Hydraulic Power Units (HPUs): Machine tool lubrication manifolds, hydraulic press brake clamping systems, injection molding auxiliary loops, and hydraulic elevator power units.
Municipal & Specialty Vehicles: Waste compactor trucks, automated street sweepers, snow plows, and marine steering/winch systems.
Package & Shipping
| Item | Details |
|---|---|
| Packaging | Neutral heavy-duty export carton with internal molded foam suspension; individual moisture-resistant sealed VCI polybags; export standard fumigation-free wooden pallets for batch consignments. |
| Selling Unit | Single item (MOQ: 1 piece for standard models; low MOQ for customized OEM configurations). |
| Single Package Size | 25.0 × 18.0 × 16.0 cm (9.84 × 7.09 × 6.30 in) per pump. |
| Single Gross Weight | 2.90 to 4.50 kg (6.39 to 9.92 lbs) depending on displacement and flange material. |
| Standard Lead Time | 3–7 business days for stock items; 15–20 business days for volume OEM batch customization. |
| Logistics & Express | Air express (DHL, FedEx, UPS, TNT), air freight, sea freight (FCL / LCL), and multimodal door-to-door DDP services worldwide. |
| Customization Services | Custom nameplate laser engraving, private labeling, custom drive shafts, integrated valves, and bespoke flange geometries. |
| Warranty & Support | 12 months comprehensive warranty from dispatch date; full lifetime technical support. |
Why Choose Hengyuhang?
Direct Factory Precision Manufacturing & CNC Excellence: Equipped with multi-axis CNC machining centers, high-precision gear hobbing machines, and automated micro-honing lines, Hengyuhang maintains sub-micron dimensional tolerances (Ra < 0.2 μm) on all internal gear teeth, journals, and housing cavities. This guarantees minimal internal friction, ultra-low hydraulic pulsation, and repeatable performance across high-volume production batches.
100% Full-Cycle Multi-Parameter Factory Inspection: Every single hydraulic pump undergoes rigorous end-of-line digital testing before dispatch. Quality checks cover full continuous rated and peak pressure hold, internal bypass leakage verification, high/low temperature volumetric efficiency testing (>94%), and acoustic noise spectrum profiling, ensuring zero-defect delivery to global OEM assembly lines.
Seamless 1:1 OEM Drop-In Interchangeability: Conforming precisely to international European standard, SAE ("AA", "A", "B", "C"), and DIN/ISO mounting configurations, our pumps deliver genuine plug-and-play replacement for over 39 leading global manufacturers. Machine operators and distributors can replace original units without modifying bell housings, drive couplings, or hydraulic line geometry, drastically reducing costly machine downtime.
Flexible Engineering Customization & Rapid Prototyping: Backed by an experienced in-house hydraulic engineering team, Hengyuhang offers comprehensive bespoke customization, including non-standard 4PTF/6PTF mounting flanges, special shaft tapers or splines, dual port configurations, and integrated relief or priority flow control valves. We support low-MOQ trial orders and agile custom prototyping to resolve obsolescence issues for out-of-production machinery.
Robust Supply Chain, Extensive Inventory & Fast Global Dispatch: With dedicated raw material casting facilities, high-strength extruded aluminum alloy reserves, and extensive finished inventory across Group 0, Group 1, Group 2, and Group 3 platforms, standard orders ship within 48 to 72 hours. We partner strategically with major international logistics carriers (DHL, FedEx, UPS, air/ocean freight) to provide seamless door-to-door DDP global delivery.
12-Month Comprehensive Warranty & Lifetime Technical Support: All Hengyuhang hydraulic pumps are backed by a complete 12-month factory warranty and dedicated lifetime technical assistance. Our specialized fluid power engineers provide free 24-hour CAD drawing verification, OEM cross-reference confirmation, hydraulic displacement calculations, and system troubleshooting to ensure total operational peace of mind.
External Gear Pump Group 2PDF 4CC–30CC (European Diamond Flange Series) is a high-pressure, compact external hydraulic gear pump featuring an industry-standard European diamond (oval 2-bolt) mounting interface. Built with an extruded high-strength aluminium alloy body, hardened alloy steel precision gear sets, and pressure-balanced DU composite thrust bushings, this series delivers 14 displacement ratings from 3 to 30 cm³/rev (covering the 4CC to 30CC working range), continuous operating pressures up to 270 bar (peak up to 300 bar), and operating speeds up to 4000 r/min. Characterized by its compact 60 mm bolt-center diamond mounting flange with Ø50 mm centering pilot, precision 1:5 taper shaft (M12×1.5), European 4-bolt flanged ports, and available K2 intermediate tandem stage with Oldham coupling, the Group 2PDF diamond flange series ensures high volumetric efficiency, quiet running, and reliable continuous fluid delivery in space-constrained mobile and industrial hydraulic systems.
| Applications
The Group 2PDF European diamond flange series is widely utilized across agricultural tractors, combine harvesters, compact agricultural implements, mini excavators, wheel loaders, skid steers, material handling equipment (counterbalance forklifts, reach trucks, aerial scissor work platforms), mobile hydraulic winches, and compact hydraulic power units (AC/DC hydraulic power packs) where rigid 2-bolt diamond flange mounting and multi-pump tandem combinations are required.
| Key Specifications Overview
| Parameter | Specification |
|---|---|
| Series | Group 2PDF Series (European Diamond Flange Configurations - K0, K1, K2) |
| Displacement Range | 3 ~ 30 cm³/rev (14 standard sizes, covering 4CC–30CC range) |
| Continuous Operating Pressure (P1) | 160 ~ 270 bar (270 bar up to 12 cc; 250 bar up to 18 cc) |
| Intermittent Operating Pressure (P2) | 170 ~ 285 bar |
| Max. Peak Pressure (P3) | 180 ~ 300 bar |
| Rotational Speed Range | 400 ~ 4000 r/min (displacement dependent) |
| Body Material | High-tensile extruded aluminium alloy body with cast aluminium or cast iron end covers |
| Mounting Flange | European diamond flange (86 mm width, 60 mm bolt-center distance, 2 × Ø10.6 mm holes, Ø50 mm pilot) |
| Drive Shaft | 1:5 Taper shaft (M12×1.5 thread, 3 mm woodruff key, Ø17 mm taper base) |
| Inlet & Outlet Ports | European 4-bolt flanged ports (4 × M6, 35 mm / 40 mm bolt centers) |
| Tandem Through-Drive (K2) | Available intermediate pump stage with Oldham coupling (Ø30 mm, 8 mm tang drive, Ø52 mm rear pilot) |
| Rotation Direction | Clockwise (D) standard / Counter-clockwise (S) optional |
| Hydraulic Fluid | Mineral-based hydraulic oil (ISO VG 46 / HLP) |
| Operating Temperature Range | -20°C to +80°C (standard NBR seals) |
| Technical Parameters & Performance Ratings (Group 2PDF K0/K1)
| Type / Model | Displacement (cm³/rev) | Max. Pressure (bar) | Max. Speed (r/min) | Min. Speed (r/min) | Dimensions (mm) | ||||
|---|---|---|---|---|---|---|---|---|---|
| P1 (Cont.) | P2 (Int.) | P3 (Peak) | M | L | D (Inlet) | ||||
| 2PDF-3-D*K0 | 3.0 | 270 | 285 | 300 | 4000 | 800 | 88.6 | 37.4 | 15 |
| 2PDF-4-D*K0 | 4.0 | 270 | 285 | 300 | 4000 | 600 | 90.2 | 37.4 | 15 |
| 2PDF-6-D*K0 | 6.0 | 270 | 285 | 300 | 4000 | 600 | 93.5 | 38.6 | 15 |
| 2PDF-8-D*K0 | 8.0 | 270 | 285 | 300 | 3500 | 500 | 96.8 | 40.7 | 15 |
| 2PDF-10-D*K0 | 10.0 | 270 | 285 | 300 | 3000 | 500 | 100.1 | 41.2 | 20 |
| 2PDF-12-D*K0 | 12.0 | 270 | 285 | 300 | 3000 | 500 | 103.4 | 45.0 | 20 |
| 2PDF-14-D*K0 | 14.0 | 250 | 265 | 280 | 4000 | 500 | 106.8 | 45.0 | 20 |
| 2PDF-16-D*K0 | 16.0 | 250 | 265 | 280 | 4000 | 500 | 110.2 | 45.0 | 20 |
| 2PDF-18-D*K0 | 18.0 | 250 | 265 | 280 | 3600 | 400 | 113.5 | 45.0 | 20 |
| 2PDF-20-D*K0 | 20.0 | 220 | 235 | 250 | 3200 | 400 | 116.8 | 45.0 | 20 |
| 2PDF-22-D*K0 | 22.0 | 220 | 235 | 250 | 3000 | 400 | 120.1 | 52.6 | 20 |
| 2PDF-25-D*K0 | 25.0 | 200 | 215 | 230 | 3000 | 400 | 125.1 | 59.3 | 20 |
| 2PDF-28-D*K0 | 28.0 | 180 | 190 | 200 | 2500 | 400 | 130.1 | 61.8 | 20 |
| 2PDF-30-D*K0 | 30.0 | 160 | 170 | 180 | 2500 | 400 | 133.4 | 63.5 | 20 |
| European Diamond Flange Configurations
| Model Code | Mounting Interface | Shaft / Coupling | Port Connection |
|---|---|---|---|
| 2PDF-...-D*K0 | European diamond flange (60 mm bolt center, Ø50 mm pilot, 2 × Ø10.6 mm holes) | 1:5 Taper shaft (M12×1.5, 3 mm woodruff key) | European 4-bolt flanged ports (4 × M6) |
| 2PDF-...-D*K1 | European diamond flange (60 mm bolt center, Ø50 mm pilot, 2 × Ø10.6 mm holes) | 1:5 Taper shaft (M12×1.5, 3 mm woodruff key) | European 4-bolt flanged ports (4 × M6) |
| 2PDF-...-D*K2 | Intermediate tandem pump section (diamond front mounting, Ø52 mm rear pilot) | Internal Oldham coupling (Ø30 mm, 8 mm tang drive) | European 4-bolt flanged ports (for multi-section tandem pumps) |
HENGYUHANG 2PDF / 2PDM Series — Complete Model List
2PDF Series — Type D*L0-R
| Type |
|---|
| 2PDF-3-D*L0-R |
| 2PDF-4-D*L0-R |
| 2PDF-6-D*L0-R |
| 2PDF-8-D*L0-R |
| 2PDF-10-D*L0-R |
| 2PDF-12-D*L0-R |
| 2PDF-14-D*L0-R |
| 2PDF-16-D*L0-R |
| 2PDF-18-D*L0-R |
| 2PDF-20-D*L0-R |
| 2PDF-22-D*L0-R |
| 2PDF-25-D*L0-R |
| 2PDF-28-D*L0-R |
| 2PDF-30-D*L0-R |
2PDF Series — Type D*H0-FAx
| Type |
|---|
| 2PDF-3-D*H0-FAx |
| 2PDF-4-D*H0-FAx |
| 2PDF-6-D*H0-FAx |
| 2PDF-8-D*H0-FAx |
| 2PDF-10-D*H0-FAx |
| 2PDF-12-D*H0-FAx |
| 2PDF-14-D*H0-FAx |
| 2PDF-16-D*H0-FAx |
| 2PDF-18-D*H0-FAx |
| 2PDF-20-D*H0-FAx |
| 2PDF-22-D*H0-FAx |
| 2PDF-25-D*H0-FAx |
| 2PDF-28-D*H0-FAx |
| 2PDF-30-D*H0-FAx |
2PDF Series — Type D*L0-Fx
| Type |
|---|
| 2PDF-3-D*L0-Fx |
| 2PDF-4-D*L0-Fx |
| 2PDF-6-D*L0-Fx |
| 2PDF-8-D*L0-Fx |
| 2PDF-10-D*L0-Fx |
| 2PDF-12-D*L0-Fx |
| 2PDF-14-D*L0-Fx |
| 2PDF-16-D*L0-Fx |
| 2PDF-18-D*L0-Fx |
| 2PDF-20-D*L0-Fx |
| 2PDF-22-D*L0-Fx |
| 2PDF-25-D*L0-Fx |
| 2PDF-28-D*L0-Fx |
| 2PDF-30-D*L0-Fx |
2PDF Series — Type D*H3
| Type |
|---|
| 2PDF-3-D*H3 |
| 2PDF-4-D*H3 |
| 2PDF-6-D*H3 |
| 2PDF-8-D*H3 |
| 2PDF-10-D*H3 |
| 2PDF-12-D*H3 |
| 2PDF-14-D*H3 |
| 2PDF-16-D*H3 |
| 2PDF-18-D*H3 |
| 2PDF-20-D*H3 |
| 2PDF-22-D*H3 |
| 2PDF-25-D*H3 |
| 2PDF-28-D*H3 |
| 2PDF-30-D*H3 |
2PDM Series — Type R*H0-Q1
| Type |
|---|
| 2PDM-3-R*H0-Q1 |
| 2PDM-4-R*H0-Q1 |
| 2PDM-6-R*H0-Q1 |
| 2PDM-8-R*H0-Q1 |
| 2PDM-10-R*H0-Q1 |
| 2PDM-12-R*H0-Q1 |
| 2PDM-14-R*H0-Q1 |
| 2PDM-16-R*H0-Q1 |
| 2PDM-18-R*H0-Q1 |
| 2PDM-20-R*H0-Q1 |
| 2PDM-22-R*H0-Q1 |
| 2PDM-25-R*H0-Q1 |
| 2PDM-28-R*H0-Q1 |
| 2PDM-30-R*H0-Q1 |
2PDF Series — Type D*H0
| Type |
|---|
| 2PDF-3-D*H0 |
| 2PDF-4-D*H0 |
| 2PDF-6-D*H0 |
| 2PDF-8-D*H0 |
| 2PDF-10-D*H0 |
| 2PDF-12-D*H0 |
| 2PDF-14-D*H0 |
| 2PDF-16-D*H0 |
| 2PDF-18-D*H0 |
| 2PDF-20-D*H0 |
| 2PDF-22-D*H0 |
| 2PDF-25-D*H0 |
| 2PDF-28-D*H0 |
| 2PDF-30-D*H0 |
2PDF Series — Type D*H1
| Type |
|---|
| 2PDF-3-D*H1 |
| 2PDF-4-D*H1 |
| 2PDF-6-D*H1 |
| 2PDF-8-D*H1 |
| 2PDF-10-D*H1 |
| 2PDF-12-D*H1 |
| 2PDF-14-D*H1 |
| 2PDF-16-D*H1 |
| 2PDF-18-D*H1 |
| 2PDF-20-D*H1 |
| 2PDF-22-D*H1 |
| 2PDF-25-D*H1 |
| 2PDF-28-D*H1 |
| 2PDF-30-D*H1 |
2PDF Series — Type D*H2
| Type |
|---|
| 2PDF-3-D*H2 |
| 2PDF-4-D*H2 |
| 2PDF-6-D*H2 |
| 2PDF-8-D*H2 |
| 2PDF-10-D*H2 |
| 2PDF-12-D*H2 |
| 2PDF-14-D*H2 |
| 2PDF-16-D*H2 |
| 2PDF-18-D*H2 |
| 2PDF-20-D*H2 |
| 2PDF-22-D*H2 |
| 2PDF-25-D*H2 |
| 2PDF-28-D*H2 |
| 2PDF-30-D*H2 |
2PDF Series — Type D*L0
| Type |
|---|
| 2PDF-3-D*L0 |
| 2PDF-4-D*L0 |
| 2PDF-6-D*L0 |
| 2PDF-8-D*L0 |
| 2PDF-10-D*L0 |
| 2PDF-12-D*L0 |
| 2PDF-14-D*L0 |
| 2PDF-16-D*L0 |
| 2PDF-18-D*L0 |
| 2PDF-20-D*L0 |
| 2PDF-22-D*L0 |
| 2PDF-25-D*L0 |
| 2PDF-28-D*L0 |
| 2PDF-30-D*L0 |
2PDF Series — Type D*K0
| Type |
|---|
| 2PDF-3-D*K0 |
| 2PDF-4-D*K0 |
| 2PDF-6-D*K0 |
| 2PDF-8-D*K0 |
| 2PDF-10-D*K0 |
| 2PDF-12-D*K0 |
| 2PDF-14-D*K0 |
| 2PDF-16-D*K0 |
| 2PDF-18-D*K0 |
| 2PDF-20-D*K0 |
| 2PDF-22-D*K0 |
| 2PDF-25-D*K0 |
| 2PDF-28-D*K0 |
| 2PDF-30-D*K0 |
2PDF Series — Type D*K1
| Type |
|---|
| 2PDF-3-D*K1 |
| 2PDF-4-D*K1 |
| 2PDF-6-D*K1 |
| 2PDF-8-D*K1 |
| 2PDF-10-D*K1 |
| 2PDF-12-D*K1 |
| 2PDF-14-D*K1 |
| 2PDF-16-D*K1 |
| 2PDF-18-D*K1 |
| 2PDF-20-D*K1 |
| 2PDF-22-D*K1 |
| 2PDF-25-D*K1 |
| 2PDF-28-D*K1 |
| 2PDF-30-D*K1 |
2PDF Series — Type D*K2
| Type |
|---|
| 2PDF-3-D*K2 |
| 2PDF-4-D*K2 |
| 2PDF-6-D*K2 |
| 2PDF-8-D*K2 |
| 2PDF-10-D*K2 |
| 2PDF-12-D*K2 |
| 2PDF-14-D*K2 |
| 2PDF-16-D*K2 |
| 2PDF-18-D*K2 |
| 2PDF-20-D*K2 |
| 2PDF-22-D*K2 |
| 2PDF-25-D*K2 |
| 2PDF-28-D*K2 |
| 2PDF-30-D*K2 |
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