HPM-P Series Poly-Reservoir Hand Pumps
Engineering Overview & Structural Features
The HPM-P Series Poly-Reservoir Lightweight Hydraulic Hand Pumps offer a convenient, ultra-portable alternative to conventional heavy steel pumps without sacrificing working performance, structural durability, or operator safety. Rated for 700 Bar (10,000 PSI) maximum operating pressure with oil capacities from 500 to 3,000 cm³, each model pairs a rugged glass-filled nylon reservoir with a nylon-encapsulated aluminum pump base. This advanced composite architecture cuts overall tool weight by over 50% while delivering complete resistance to chemical corrosion, moisture, and job-site impact across utility, construction, and plant maintenance operations.
COMPOSITE CORROSION RESISTANCE & ULTRA-PORTABILITY
Durable glass-filled nylon reservoir and nylon-encapsulated aluminum pump base cut tool weight by over 50% vs steel pumps (starting at just 2.15 kg) while offering exceptional resistance to chemical fluids and outdoor weathering.
TWO-SPEED FLOW & 78% STROKE REDUCTION
Automatic dual-stage flow displacement delivers high oil volume (up to 11.4 cm³/stroke) during no-load extension, reducing handle pumping strokes by as much as 78% before smoothly transitioning into 700 Bar high-pressure mode.
INTEGRAL 4-WAY DIRECTIONAL VALVE & S/A VERSIONS
Available in single-acting metered relief configurations and double-acting models (HPM-P-342 & HPM-P-842) equipped with factory-integrated 4-way, 3-position spool valves for smooth hydraulic advance, hold, and retract cycles.
DIELECTRIC FIBERGLASS LEVER & OVERLOAD RELIEF
Non-conductive fiberglass handle protects operators in utility and electrical substations. Low handle pumping effort (35-42 kg) with bottom handle lock, backed by internal overload safety relief valves for fail-safe circuit protection.
ELECTRICAL SUBSTATION & UTILITY LINEWORK
Non-conductive dielectric fiberglass handles provide electrical isolation safety when actuating hydraulic crimpers, cable cutters, and punchers in power utility substations.
PORTABLE ON-SITE FLANGE & RIGGING ACTUATION
Lightweight 2.15-7.30 kg build and integrated handle lock allow effortless one-handed transport for powering hydraulic flange spreaders, nut splitters, and toe jacks.
DOUBLE-ACTING TOOL REVERSAL & PRECISION RETRACT
HPM-P-342 and HPM-P-842 equipped with integral 4-way valves provide positive hydraulic advance and retract control for double-acting pullers and bearing maintenance presses.
OEM Cross-Reference & Dimensional Interchangeability
Lightweight two-speed hydraulic hand pumps rated for 700 Bar (10,000 PSI), engineered with corrosion-resistant composite reservoirs for portable job-site actuation and utility maintenance across 500 to 3,000 cm³ usable oil capacities. 700 Bar / 500 - 3,000 cm³ (0.5 - 3.0 L).
Enerpac®, SPX Flow®, Power Team®, Simplex®, Hytorc®, Holmatro® and other brand names are registered trademarks of their respective owners. HydraStark is an independent manufacturer and is not affiliated with, authorized or endorsed by these companies. OEM model numbers are listed for dimensional and specification reference only; please verify fit with our engineers before ordering.
MAX WORKING PRESSURE
700 Bar (10,000 PSI)
USABLE OIL CAPACITY
500 - 3,000 cm³ (ml)
OPERATION MECHANISM
Two-Speed Automatic High/Low Pressure Shifting
Real Product Details & Build Quality
Specifications
Model | Cylinder Type | Speed / Valve Type | Oil Capacity cm³ | Pressure Stage | Flow Per Stroke | Handle Force kg | Oil Port Thread | Weight kg | ||
|---|---|---|---|---|---|---|---|---|---|---|
1st bar | 2nd bar | 1st cm³ | 2nd cm³ | |||||||
| HPM-P-142 | Single Acting | Two Speed | 500 | 15 | 700 | 3.5 | 2.3 | 35 | 1/4"-18 NPT | 2.15 |
| HPM-P-392 | Single Acting | Two Speed | 1000 | 15 | 700 | 11.4 | 2.3 | 42 | 3/8"-18 NPT | 4.20 |
| HPM-P-392B | Single Acting | Two Speed | 1000 | 15 | 700 | 11.4 | 2.3 | 42 | 3/8"-18 NPT (Dual Port) | 4.20 |
| HPM-P-802 | Single Acting | Two Speed | 3000 | 15 | 700 | 11.4 | 2.3 | 42 | 3/8"-18 NPT | 6.50 |
| HPM-P-342 | Double Acting | Two Speed (4-Way Valve) | 1000 | 15 | 700 | 11.4 | 2.3 | 42 | 3/8"-18 NPT | 5.30 |
| HPM-P-842 | Double Acting | Two Speed (4-Way Valve) | 3000 | 15 | 700 | 11.4 | 2.3 | 42 | 3/8"-18 NPT | 7.30 |
Required System Components
Frequently Asked Questions
Q1How does the HydraStark HPM-P compare with the Enerpac P-392?
expand_more
How does the HydraStark HPM-P compare with the Enerpac P-392?
The HydraStark HPM-P range (HPM-P Series Poly-Reservoir Hand Pumps) is positioned as an alternative to the Enerpac P-392 (OEM part numbers such as P-392, P392, P-142, P142, P-391, P-202). Enerpac is a registered trademark of its owner; the reference is provided for dimensional and technical comparison only. Mounting dimensions, ratings and interfaces are listed in the specification table on this page — please confirm them against your existing equipment, or send us your OEM part number and our engineers will check compatibility before you order.
Q2What are the key specifications of the HPM-P?
expand_more
What are the key specifications of the HPM-P?
Max Working Pressure: 700 Bar (10,000 PSI); Usable Oil Capacity: 500 - 3,000 cm³ (ml); Operation Mechanism: Two-Speed Automatic High/Low Pressure Shifting; Reservoir Construction: Impact & Corrosion-Resistant Glass-Filled Nylon; Pump Base Housing: Nylon-Encapsulated Lightweight Aluminum Alloy. Full specifications and dimensions are given in the specification table below.
Q3Which models are available in the HPM-P series?
expand_more
Which models are available in the HPM-P series?
The specification table lists 6 models: HPM-P-142, HPM-P-392, HPM-P-392B, HPM-P-802, HPM-P-342, HPM-P-842. For non-standard requirements, please describe them in the inquiry form.
Q4How is the HPM-P tested before shipping?
expand_more
How is the HPM-P tested before shipping?
Each unit is tested at 125% of its rated pressure before shipping (700 Bar rated, 875 Bar test pressure).
Q5What are the lead time, warranty and shipping options for the HPM-P?
expand_more
What are the lead time, warranty and shipping options for the HPM-P?
Lead time is typically 2–3 business days when the model is in stock and 7–35 business days otherwise. Warranty is 12 months after receipt of goods. Shipping is available by sea freight, air freight or international express (DHL, FedEx, UPS). Send your requirements through the inquiry form for an exact quotation and delivery date.