HTP-A Series Pneumatic UHP Bolt Tensioner Pumps
Engineering Overview & Structural Features
The HTP-A Series Pneumatic Ultra-High Pressure Bolt Tensioner Pumps deliver extreme hydraulic working pressures from 1500 Bar up to 3000 Bar (150–300 MPa) powered entirely by standard 6 to 10 Bar compressed shop air. Purpose-engineered for oil & gas refineries, offshore platforms, petrochemical processing facilities, and explosive hazardous environments, the HTP-A Series eliminates electrical ignition hazards completely. Featuring an integrated air preparation filter-regulator, external hydraulic pressure tuning knob (0–3000 Bar), internal calibrated safety bypass, and heavy-gauge 4L, 5L, and 8L reservoirs, it supplies smooth, stall-free fluid power for multiple simultaneous bolt tensioners and ultra-high pressure pullers.
100% PNEUMATIC EXPLOSION-PROOF SAFETY
Driven entirely by 6–10 Bar compressed air with zero electrical components, eliminating spark or thermal ignition risks in ATEX Zone 1 / Division 1 offshore rigs, gas plants, and confined petrochemical spaces.
1500 - 3000 BAR CONTINUOUS UHP OUTPUT
High-ratio reciprocating pneumatic intensifier piston delivers steady, pulsation-damped hydraulic pressure from 1500 Bar up to 3000 Bar (0.10 to 0.40 L/min), maintaining pre-set tension without stalling or air consumption at hold.
EXTERNAL PRESSURE REGULATOR & SAFETY RELIEF
Features an ergonomic external pressure regulator allowing infinitely variable output adjustment within 0–3000 Bar, protected by a tamper-proof internal safety relief valve that prevents tool over-pressurization.
DUAL PANEL GAUGES & INTEGRATED AIR F.R.L
Dual stainless pressure gauges clearly display incoming compressed air drive pressure and real-time hydraulic working pressure side-by-side, conditioned by an internal air filter, regulator, and lubricator (F.R.L) assembly.
HEAVY STEEL ENCLOSURE & 4L-8L RESERVOIRS
Housed in a rugged powder-coated industrial steel cabinet (600 × 460 × 500 mm) with top carrying handle. Available with 4L, 5L, and 8L fluid reservoirs (16–24 kg) to power banks of multiple tensioner heads simultaneously.
G-1/4" UHP COUPLER & RAPID RELEASE VALVE
Industry-standard G-1/4" pressure port equipped with positive-locking 3000 Bar quick-disconnect couplers and an instantaneous hydraulic depressurization valve for fast, safe bolt tensioner retraction and line uncoupling.
OEM Cross-Reference & Dimensional Interchangeability
Air-driven ultra-high pressure hydraulic bolt tensioner pumps rated for 1500 to 3000 Bar (21,750 to 43,500 PSI), engineered for explosion-proof flange bolting and hydraulic pulling across 4 to 8 L reservoirs. 1500 - 3000 Bar Air Tensioner.
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
1500 to 3000 Bar (150 - 300 MPa)
DRIVE SOURCE
6 - 10 Bar Compressed Air (Explosion-Proof)
HYDRAULIC FLOW RATE
0.10 - 0.40 L/min (Continuous High-Pressure)
Specifications
Model Number | Max Pressure Bar | Required Air Input Bar | High-Pressure Flow Rate L/min | Dimensions (L×W×H) mm | Oil Capacity L | Outlet Port Size | Weight Kg |
|---|---|---|---|---|---|---|---|
| HTP-A-1500 | 1500 | 6 - 10 | 0.4 | 600 × 460 × 500 | 4 | G 1/4" | 16 |
| HTP-A-2100 | 2100 | 6 - 10 | 0.2 | 600 × 460 × 500 | 5 | G 1/4" | 24 |
| HTP-A-3000 | 2500 | 6 - 10 | 0.1 | 600 × 460 × 500 | 8 | G 1/4" | 24 |
Required System Components
Frequently Asked Questions
Q1How does the HydraStark HTP-A compare with the Enerpac ATP?
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How does the HydraStark HTP-A compare with the Enerpac ATP?
The HydraStark HTP-A range (HTP-A Series Pneumatic UHP Bolt Tensioner Pumps) is positioned as an alternative to the Enerpac ATP (OEM part numbers such as ATP-1500, ATP-3000). 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 HTP-A?
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What are the key specifications of the HTP-A?
Max Working Pressure: 1500 to 3000 Bar (150 - 300 MPa); Drive Source: 6 - 10 Bar Compressed Air (Explosion-Proof); Hydraulic Flow Rate: 0.10 - 0.40 L/min (Continuous High-Pressure); Usable Oil Reservoir: 4, 5, and 8 Liters Heavy-Gauge Reservoir; Hydraulic Outlet Port: G-1/4" with High-Pressure Quick Coupler. Full specifications and dimensions are given in the specification table below.
Q3Which models are available in the HTP-A series?
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Which models are available in the HTP-A series?
The specification table lists 3 models: HTP-A-1500, HTP-A-2100, HTP-A-3000. For non-standard requirements, please describe them in the inquiry form.
Q4How is the HTP-A tested before shipping?
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How is the HTP-A tested before shipping?
Each unit is tested at 125% of its rated pressure before shipping (3,000 Bar rated, 3,750 Bar test pressure).
Q5What are the lead time, warranty and shipping options for the HTP-A?
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What are the lead time, warranty and shipping options for the HTP-A?
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.