Gear pump
External Hydraulic Gear Pump 2.5PDF
Hengyuhang External Hydraulic Gear Pump Group 2.5PDF 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 Hydraulic Gear Pump Group 2.5PDF 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 Hydraulic Gear Pump Group 2.5PDF Series
Brand Replacement: CASAPPA, Rexroth, Marzocchi, Parker OEM or as requested.
Displacement: 6CC-44CC cm³/rev
Rotation Direction: Clockwise (D), counter-clockwise (S), reversible (R)
Speed Range: Min. speed 500 to 600 r/min; Max. speed 2800 to 3500 r/min
Peak Pressure: 250 to 300 bar
- Description
- Tecspecs
- Brand & Reference
- Download HENGYUHANG 2.5PDF Hydraulic Gear Pump PDF
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1. Overview of HENGYUHANG Group 2.5PDF Series External Hydraulic Gear Pumps
The HENGYUHANG Group 2.5PDF Series occupies an advantageous engineering class between standard Group 2 and heavy-duty Group 3 platforms, providing an optimized displacement envelope from 6.0 up to 44.0 cm³/rev. This intermediate displacement architecture delivers substantial fluid displacement and high-pressure capability without the bulk, weight, or excessive installation footprint of Group 3 units. It is engineered specifically to replace European and international standard Group 2.5 gear pumps across 39 leading global manufacturers with zero alterations to existing bell housings, electric motor couplings, or hydraulic line configurations.
Constructed using a high-density extruded aerospace-grade aluminum alloy central gear body paired with heavy-duty spheroidal graphite ductile cast-iron or aluminum front mounting flanges and rear covers, the pump exhibits exceptional mechanical strength, resisting body dilation under continuous working pressures up to 250 bar (3,625 psi) and transient surge pressures up to 300 bar (4,350 psi). The internal rotating group incorporates case-hardened, precision-ground alloy steel gears supported by high-load hydrodynamic composite DU/PTFE sleeve bushings. Dual hydrostatic floating axial balance thrust plates dynamically compensate for operating clearances across varying thermal and pressure conditions, sustaining volumetric efficiencies above 94% while substantially lowering hydraulic pulsation and acoustic emissions in mobile machine cabins and indoor manufacturing plants.
2. Dimension of HENGYUHANG Group 2.5PDF Series External Hydraulic Gear Pumps
Interface data needed with the drawing:
| Item | Value |
|---|---|
| Mounting flange | European standard 4-bolt rectangular flange (pilot Ø 50.8 mm / Ø 60.3 mm) / SAE "A" 2-bolt flange (pilot Ø 82.55 mm) / SAE "B" 2-bolt flange (pilot Ø 101.6 mm) / Italian standard diamond/4-bolt flange |
| Drive shaft | 1:8 European taper shaft with woodruff key (M12 × 1.25 or M14 × 1.5 nut) / Cylindrical keyed shaft (Ø 19.05 mm, Ø 22.22 mm, or Ø 25.4 mm) / Involute splined shaft (SAE 9T, 11T, 13T or DIN 5482 B17x14) |
| 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 flanged/threaded ports (L) on body / Rear-cover ports (P) for compact manifold block integration |
| Inlet Port | European standard 4-bolt diamond/rectangular flange (M8/M10 bolts, Ø 27.0 mm or Ø 33.0 mm) / G 1" or G 1-1/4" BSPP thread / 1-5/16-12 UN SAE O-ring boss |
| Outlet Port | European standard 4-bolt diamond/rectangular flange (M8 bolts, Ø 19.0 mm or Ø 27.0 mm) / G 3/4" or G 1" BSPP thread / 1-1/16-12 UN 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 front mounting flange and rear cover |
| Mounting flange bolt torque | 65 ±5 Nm (575 ÷ 620 lbf in) |
| Body tie-rod clamp bolt torque | 75 ±5 Nm (620 ÷ 708 lbf in) |
3. Pump Installation Specifications HENGYUHANG Group 2.5PDF Series
The HENGYUHANG Group 2.5PDF Series pump utilizes a standardized modular ordering and specification code to ensure precise mechanical, hydraulic, and mounting interchangeability:
Code structure — reference: 2.5PDF — Group 2.5 Intermediate High-Pressure External Gear Pump Series
| Segment | Meaning | Standard Options & Features |
|---|---|---|
| Series | 2.5PDF | Group 2.5 intermediate high-pressure external gear pump architecture (6.0 to 40.0 cm³/rev) |
| Displacement | 6.0 to 44.0 | Geometric displacement in cm³/rev (6, 8, 10, 12, 14, 16, 19, 22, 25, 28, 30, 32, 36, 38, 40, 44) |
| 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: Cylindrical keyed shaft; S1: SAE / DIN involute splined shaft |
| Mounting Flange | E4 / A2 / B2 | E4: European standard 4-bolt flange; A2: SAE "A" 2-bolt flange; B2: SAE "B" 2-bolt flange |
| Ports Code | L / P | L: Side flanged/threaded body ports; P: Rear cover threaded ports |
| Inlet / Outlet | F2 / G2 / U2 | F2: European flanged ports; 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 2.5PDF Equivalent | Interchange Verification Notes |
|---|---|---|
| CASAPPA POLARIS PLP25 / Intermediate Series | HENGYUHANG 2.5PDF Series | 100% mounting spigot pilot, shaft taper, and port centerline match |
| Bosch Rexroth AZPF / AZPS Intermediate | HENGYUHANG 2.5PDF Series | Identical mounting pilot, shaft woodruff key, and continuous pressure rating match |
| MARZOCCHI ALP2.5 / GHP2.5 Series | HENGYUHANG 2.5PDF Series | Direct mechanical envelope match; identical inlet/outlet flange drillings |
| PARKER PGP511 / PGP517 Intermediate | HENGYUHANG 2.5PDF Series | Full hydraulic flow compatibility, exact bolt centers, and drive shaft interchange |
| DANFOSS / Turolla Group 2.5 (SNP2.5 / D Series) | HENGYUHANG 2.5PDF Series | Seamless drop-in fit for medium-heavy tractor implement circuits and industrial HPUs |
| VIVOLO (Vivoil) XV-2.5 Series | HENGYUHANG 2.5PDF Series | Direct interchange on shaft, flange, and side European flanged ports |
| SALAMI 2.5PB / 2.5PE Series | HENGYUHANG 2.5PDF Series | Identical bolt hole pattern and gear journal high-pressure ratings |
| BUCHER Hydraulics AP250 Series | HENGYUHANG 2.5PDF Series | Direct mounting fit for industrial machine tools, presses, and mobile cranes |
| Techspecs of HENGYUHANG Group 2.5PDF 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) |
|---|---|---|---|---|---|---|---|---|
| 2.5PDF-22 | 22.00 | 1.404 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 600 | 3,500 | 34.50 |
| 2.5PDF-25 | 25.00 | 1.526 | 240 / 3,480 | 265 / 3,843 | 290 / 4,205 | 600 | 3,500 | 37.50 |
| 2.5PDF-28 | 28.00 | 1.709 | 230 / 3,335 | 255 / 3,698 | 280 / 4,060 | 500 | 3,200 | 42.00 |
| 2.5PDF-32 | 32.00 | 1.953 | 220 / 3,190 | 245 / 3,553 | 270 / 3,915 | 500 | 3,000 | 48.00 |
| 2.5PDF-36 | 36.00 | 2.197 | 200 / 2,900 | 225 / 3,263 | 250 / 3,625 | 500 | 3,000 | 54.00 |
| 2.5PDF-40 | 40.00 | 2.441 | 180 / 2,610 | 205 / 2,973 | 230 / 3,335 | 500 | 2,800 | 60.00 |
| 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 of HENGYUHANG Group 2.5PDF Series
Direct Intermediate OEM Drop-In Interchangeability: Precision-machined to standard European and SAE intermediate Group 2.5 mounting dimensions, 1:8 tapered drive shafts, and port centerlines, enabling immediate 1:1 drop-in replacement across 39 leading global manufacturers.
Superior Heavy-Duty Flow Capacity in Compact Footprint: Bridges the operational gap between Group 2 and Group 3, delivering high delivery volume (up to 40 cm³/rev) and high operating pressures without requiring the heavier casting mass or enlarged bell housings associated with Group 3 pumps.
High Continuous Pressure Resilience: High-strength extruded aluminum alloy body reinforced with heavy-duty spheroidal 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 flanged ports, BSPP cylindrical threaded ports, SAE O-ring boss ports, or integrated pressure relief valves tailored to bespoke customer requirements.
| Reference of HENGYUHANG Group 2.5PDF Series
| Series Architecture Across Group 2.5PDF Series
The HENGYUHANG Group 2.5PDF family covers 6 standardized displacements, ensuring optimal hydraulic matching:
Intermediate High-Pressure Range (23.0 – 28.0 cm³/rev): 2.5PDF-23, 2.5PDF-25, 2.5PDF-28
High-Flow Industrial & Mobile Range (32.0 – 40.0 cm³/rev): 2.5PDF-32, 2.5PDF-36, 2.5PDF-40
| Comprehensive Interchangeability Matrix Across 39 Brands
The HENGYUHANG Group 2.5PDF Series provides proven mechanical, mounting, and hydraulic drop-in substitution for the following 39 international manufacturers:
ARGO-HYTOS: GP2.5 Series intermediate external gear pumps
ASEDA: Group 2.5 European tractor implement gear pumps
ATOS: PFG-2.5 / PFE intermediate external gear pumps
B&C Hydraulics: GR2.5 series compact gear pumps
BLUEASCEND: Group 2.5 aluminum gear pumps for mobile machinery
Boden: Boden B2.5 / BG2.5 hydraulic gear pumps
BONDIOLI & PAVESI: HP Series Group 2.5 gear pumps (HP2.5, HPL2.5)
Brevini Fluid Power (Dana Brevini): OT250 / B250 series compact pumps
BUCHER Hydraulics: AP250 / QX intermediate high-pressure gear pumps
Caproni: Group 2.5 / 25A / 25C hydraulic gear pumps
CASAPPA: POLARIS Group 2.5 (PLP25, 2.5PDF) gear pumps
CONCENTRIC (Haldex): W900 / W1200 intermediate external pumps
DANFOSS Power Solutions: SNP2.5 / Turolla D Series Group 2.5 pumps
DUPLOMATIC: IGP2.5 / GP2.5 series external gear pumps
Galtech: 2.5SP series compact gear pumps
GRH Hydraulics: 2.5PF series aluminum gear pumps
HANSA-TMP: Group 2.5 gear pumps and power pack units
HESPER: Group 2.5 mobile hydraulic gear pumps
HIDRAULICA: Group 2.5 external gear pumps
HONOR Gear Pumps: Group 2.5 series pumps
HPI (Hydraulique Professionnelle Industrielle): Series M2.5 / P2.5 gear pumps
HYDAC: PGE200 series external gear pumps
HYDROMAX: Group 2.5 external hydraulic gear pumps
HYDRONIT: Group 2.5 compact power pack central block gear pumps
JIHOSTROJ: P25 / Q2.5 Series hydraulic gear pumps
JOYANG: Group 2.5 gear pumps for material handling
KOMPASS: Group 2.5 industrial gear pumps
KRACHT: KF 2.5 / KP 2.5 series high-performance gear pumps
MARZOCCHI: ALP2.5 / GHP2.5 series high-pressure gear pumps
MetaHydra: Group 2.5 custom gear pumps
PARKER Hannifin: PGP511 / PGP517 Intermediate Group 2.5 gear pumps
REXPOWER: Group 2.5 external gear pumps
Bosch Rexroth: AZPF / AZPS Intermediate Group 2.5 gear pumps
REXROTH-SIGMA: Sigma Group 2.5 gear pumps
RONZIO: 02.5 Series Group 2.5 high-pressure gear pumps
ROQUET: 2.5L / 2.5M Series external gear pumps
SALAMI: 2.5PB / 2.5PE series compact gear pumps
SDH (Shengda Hydraulics): Group 2.5 gear pumps
VIVOLO (Vivoil): XV-2.5 Series Group 2.5 gear pumps
Brand Replacement
Quanzhou Hengyuhang Power Technology Co., Ltd. manufactures the Group 2.5PDF Series conforming to international OEM European and SAE intermediate 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: Medium excavators, wheel loaders, backhoe loaders, telehandlers, vibratory rollers, and hydraulic drill rigs requiring robust intermediate bell-housing mounting.
Agricultural Equipment: High-horsepower agricultural tractors, combine harvesters, large round balers, forage harvesters, and forestry timber loaders.
Material Handling & Aerial Lifts: Heavy-duty counterbalanced forklifts, rough-terrain reach stackers, aerial work platform hydraulic systems, and truck-mounted cranes.
Stationary Industrial Hydraulic Power Units (HPUs): Hydraulic metal forming presses, injection molding machines, scrap balers, machine tool clamping systems, and continuous industrial filtration systems.
Municipal & Specialty Vehicles: High-capacity refuse compactor trucks, hook-lift bodies, airport ground support vehicles, and marine deck winch hydraulic 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 | 28.0 × 20.0 × 18.0 cm (11.02 × 7.87 × 7.09 in) per pump. |
| Single Gross Weight | 4.80 to 7.20 kg (10.58 to 15.87 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 Hydraulic Gear Pump Group 2.5PDF 23–40CC (6–44 cm³/rev) is a high-performance, heavy-duty external gear pump series engineered to bridge the displacement and power envelope between standard Group 2 and Group 3 frame sizes. Built with an extruded high-strength aluminium alloy body, heat-treated alloy steel precision gear sets, and pressure-balanced DU composite anti-friction thrust plates, this series delivers 16 displacement ratings from 6 to 44 cm³/rev with primary focus on the high-demand 23–40CC capacity range. It supports continuous operating pressures up to 250 bar (peak pressure up to 300 bar) and operating speeds up to 4000 r/min. Available in European 4-bolt rectangular flange (T5, 98 × 128 mm bolt centers with 1:8 taper shaft), SAE A 2-bolt flange (R2, Ø82.55 mm pilot with Ø19.05 mm cylindrical keyed shaft and BSPP ports), SAE B 2-bolt flange (R3, Ø101.6 mm pilot with DP16/32-30°-13T splined shaft and side UNF ports), and rear-ported SAE configurations (R3-R), the Group 2.5PDF series provides exceptional mechanical and volumetric efficiency, low fluid-borne noise, and heavy-duty reliability in demanding mobile and industrial hydraulic systems.
| Applications
The Group 2.5PDF external gear pump series is widely specified for medium-to-heavy mobile equipment and industrial machinery, including agricultural tractors, combine harvesters, large round balers, telehandlers, wheel loaders, compact excavators, backhoe loaders, paving and road construction machines, heavy-duty forklift trucks, container handlers, refuse compactor trucks, municipal sweepers, and stationary industrial hydraulic power units requiring robust continuous pressure and high delivery flow.
| Key Specifications Overview
| Parameter | Specification |
|---|---|
| Series | Group 2.5PDF Series (T5 European Rectangular, R2 SAE A, R3 / R3-R SAE B) |
| Displacement Range | 6 ~ 44 cm³/rev (16 standard ratings, featuring 22, 25, 28, 30, 32, 36, 38, 40, 44 cm³/rev) |
| Continuous Operating Pressure (P1) | 170 ~ 250 bar (250 bar for 6~28 cc; 230 bar for 30~32 cc; 200 bar for 36~38 cc; 170 bar for 40~44 cc) |
| Intermittent Operating Pressure (P2) | 190 ~ 280 bar (280 bar for 6~28 cc; 250 bar for 30~32 cc; 230 bar for 36~38 cc; 190 bar for 40~44 cc) |
| Max. Peak Pressure (P3) | 210 ~ 300 bar (300 bar for 6~28 cc; 260 bar for 30~32 cc; 250 bar for 36~38 cc; 210 bar for 40~44 cc) |
| Rotational Speed Range | 400 ~ 4000 r/min (displacement dependent; up to 4000 r/min for 6~10 cc) |
| Housing Construction | Extruded high-tensile aluminium alloy casing with cast iron / aluminium end covers |
| Mounting Flange Options | T5: European 4-bolt rectangular (98 × 128 mm, Ø50.8 mm pilot); R2: SAE A 2-bolt (106.4 mm, Ø82.55 mm pilot); R3 / R3-R: SAE B 2-bolt (146 mm, Ø101.6 mm pilot) |
| Drive Shaft Options | T5: 1:8 Taper shaft (M14×1.5, 4 mm key); R2: Ø19.05 mm straight keyed shaft (4.78 mm key); R3 / R3-R: DP16/32-30°-13T involute splined shaft (Ø21.81 mm) |
| Port Options | European 4-bolt flanged ports (T5), BSPP threaded ports (R2), side SAE O-ring boss UNF ports (R3), or rear SAE UNF ports (R3-R) |
| 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 2.5PDF)
| Type / Model | Displacement (cm³/rev) | Max. Pressure (bar) | Max. Speed (r/min) | Min. Speed (r/min) | T5 Dimensions (mm) | R2 / R3 Ports | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| P1 (Cont.) | P2 (Int.) | P3 (Peak) | M | L | R2 (Inlet/Outlet) | R3 (Inlet/Outlet) | ||||
| 2.5PDF-6-D* | 6.0 | 250 | 280 | 300 | 4000 | 800 | 103.0 | 49.3 | G 3/4 / G 1/2 | 1 1/16-12 / 7/8-14 |
| 2.5PDF-8-D* | 8.0 | 250 | 280 | 300 | 4000 | 800 | 105.0 | 50.3 | G 3/4 / G 1/2 | 1 1/16-12 / 7/8-14 |
| 2.5PDF-10-D* | 10.0 | 250 | 280 | 300 | 4000 | 700 | 107.0 | 51.3 | G 3/4 / G 1/2 | 1 1/16-12 / 7/8-14 |
| 2.5PDF-12-D* | 12.0 | 250 | 280 | 300 | 3500 | 700 | 110.0 | 52.5 | G 3/4 / G 1/2 | 1 1/16-12 / 7/8-14 |
| 2.5PDF-14-D* | 14.0 | 250 | 280 | 300 | 3500 | 600 | 111.0 | 53.3 | G 3/4 / G 1/2 | 1 1/16-12 / 7/8-14 |
| 2.5PDF-16-D* | 16.0 | 250 | 280 | 300 | 3500 | 600 | 114.0 | 54.5 | G 3/4 / G 1/2 | 1 1/16-12 / 7/8-14 |
| 2.5PDF-19-D* | 19.0 | 250 | 280 | 300 | 3000 | 500 | 117.0 | 56.3 | G 3/4 / G 1/2 | 1 1/16-12 / 7/8-14 |
| 2.5PDF-22-D* | 22.0 | 250 | 280 | 300 | 3000 | 500 | 121.0 | 58.0 | G 3/4 / G 1/2 | 1 1/16-12 / 7/8-14 |
| 2.5PDF-25-D* | 25.0 | 250 | 280 | 300 | 3000 | 500 | 123.0 | 59.3 | G 1 / G 3/4 | 1 5/16-12 / 1 1/16-12 |
| 2.5PDF-28-D* | 28.0 | 250 | 280 | 300 | 3000 | 500 | 126.0 | 60.8 | G 1 / G 3/4 | 1 5/16-12 / 1 1/16-12 |
| 2.5PDF-30-D* | 30.0 | 230 | 250 | 260 | 3000 | 500 | 129.0 | 62.0 | G 1 / G 3/4 | 1 5/16-12 / 1 1/16-12 |
| 2.5PDF-32-D* | 32.0 | 230 | 250 | 260 | 3000 | 400 | 131.0 | 63.3 | G 1 / G 3/4 | 1 5/16-12 / 1 1/16-12 |
| 2.5PDF-36-D* | 36.0 | 200 | 230 | 250 | 2750 | 400 | 135.0 | 65.3 | G 1 / G 3/4 | 1 5/16-12 / 1 1/16-12 |
| 2.5PDF-38-D* | 38.0 | 200 | 230 | 250 | 2750 | 400 | 137.0 | 66.3 | G 1 / G 3/4 | 1 5/16-12 / 1 1/16-12 |
| 2.5PDF-40-D* | 40.0 | 170 | 190 | 210 | 2500 | 400 | 139.0 | 67.3 | G 1 / G 3/4 | 1 5/16-12 / 1 1/16-12 |
| 2.5PDF-44-D* | 44.0 | 170 | 190 | 210 | 2500 | 400 | 144.0 | 69.5 | G 1 / G 3/4 | 1 5/16-12 / 1 1/16-12 |
| Mounting Flange, Shaft & Port Configurations
| Configuration Code | Mounting Interface & Pilot | Drive Shaft Specification | Port Connections |
|---|---|---|---|
| 2.5PDF-...-D*T5 | European 4-bolt rectangular flange 120 × 150 mm (98 × 128 mm bolt centers, Ø50.8 mm pilot, 4 × Ø11 mm holes) | 1:8 Taper shaft (M14×1.5 thread, 4 mm key, Ø19 mm base, 47 mm length) | European 4-bolt flanged ports (Inlet: 4 × M8 / M10; Outlet: 4 × M6 / M8) |
| 2.5PDF-...-D*R2 | SAE A 2-bolt flange 130 mm width (106.4 mm bolt center, Ø82.55 mm pilot, 11.1 mm slotted holes) | Ø19.05 mm straight keyed shaft (4.78 mm key, 32 mm length) | BSPP female threaded ports (Inlet G 3/4 or G 1; Outlet G 1/2 or G 3/4) |
| 2.5PDF-...-D*R3 | SAE B 2-bolt flange 174 mm width (146 mm bolt center, Ø101.6 mm pilot, 2 × Ø14.3 mm holes) | Involute splined shaft DP16/32-30°-13T (Ø21.81 mm, 41 mm length) | Side SAE O-ring boss UNF ports (Inlet 1 1/16-12 / 1 5/16-12; Outlet 7/8-14 / 1 1/16-12) |
| 2.5PDF-...*D*R3-R | SAE B 2-bolt flange 174 mm width (146 mm bolt center, Ø101.6 mm pilot, 2 × Ø14.3 mm holes) | Involute splined shaft DP16/32-30°-13T (Ø21.81 mm, 41 mm length) | Rear SAE O-ring boss UNF ports (Inlet: 1 1/16-12UNF; Outlet: 7/8-14UNF; 25/30 mm spacing) |
HENGYUHANG 2.5PDF Series — Complete Model List
2.5PDF Series — Type D*R3-R
| Type |
|---|
| 2.5PDF-6-D*R3-R |
| 2.5PDF-8-D*R3-R |
| 2.5PDF-10-D*R3-R |
| 2.5PDF-12-D*R3-R |
| 2.5PDF-14-D*R3-R |
| 2.5PDF-16-D*R3-R |
| 2.5PDF-19-D*R3-R |
| 2.5PDF-22-D*R3-R |
| 2.5PDF-25-D*R3-R |
| 2.5PDF-28-D*R3-R |
| 2.5PDF-30-D*R3-R |
| 2.5PDF-32-D*R3-R |
| 2.5PDF-36-D*R3-R |
| 2.5PDF-38-D*R3-R |
| 2.5PDF-40-D*R3-R |
| 2.5PDF-44-D*R3-R |
2.5PDF Series — Type D*R3
| Type |
|---|
| 2.5PDF-6-D*R3 |
| 2.5PDF-8-D*R3 |
| 2.5PDF-10-D*R3 |
| 2.5PDF-12-D*R3 |
| 2.5PDF-14-D*R3 |
| 2.5PDF-16-D*R3 |
| 2.5PDF-19-D*R3 |
| 2.5PDF-22-D*R3 |
| 2.5PDF-25-D*R3 |
| 2.5PDF-28-D*R3 |
| 2.5PDF-30-D*R3 |
| 2.5PDF-32-D*R3 |
| 2.5PDF-36-D*R3 |
| 2.5PDF-38-D*R3 |
| 2.5PDF-40-D*R3 |
| 2.5PDF-44-D*R3 |
2.5PDF Series — Type D*R2
| Type |
|---|
| 2.5PDF-6-D*R2 |
| 2.5PDF-8-D*R2 |
| 2.5PDF-10-D*R2 |
| 2.5PDF-12-D*R2 |
| 2.5PDF-14-D*R2 |
| 2.5PDF-16-D*R2 |
| 2.5PDF-19-D*R2 |
| 2.5PDF-22-D*R2 |
| 2.5PDF-25-D*R2 |
| 2.5PDF-28-D*R2 |
| 2.5PDF-30-D*R2 |
| 2.5PDF-32-D*R2 |
| 2.5PDF-36-D*R2 |
| 2.5PDF-38-D*R2 |
| 2.5PDF-40-D*R2 |
| 2.5PDF-44-D*R2 |
2.5PDF Series — Type D*T5
| Type |
|---|
| 2.5PDF-6-D*T5 |
| 2.5PDF-8-D*T5 |
| 2.5PDF-10-D*T5 |
| 2.5PDF-12-D*T5 |
| 2.5PDF-14-D*T5 |
| 2.5PDF-16-D*T5 |
| 2.5PDF-19-D*T5 |
| 2.5PDF-22-D*T5 |
| 2.5PDF-25-D*T5 |
| 2.5PDF-28-D*T5 |
| 2.5PDF-30-D*T5 |
| 2.5PDF-32-D*T5 |
| 2.5PDF-36-D*T5 |
| 2.5PDF-38-D*T5 |
| 2.5PDF-40-D*T5 |
| 2.5PDF-44-D*T5 |
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