USUN GBD40-OL Booster Pump

USUN
$2,280.00
$2,280.00

Product Agreement Required

You must read and agree to the terms and conditions before purchasing this product.

Terms and Conditions

I, as purchaser and/or end user of a booster pump and/or related accessories (“the Product”), expressly ASSUME ALL RISKS OF INJURY, DEATH OR DAMAGE to my person or property arising from or in conjunction with my purchase, use or misuse of the Product. I understand and am fully aware that there are many inherent risks and hazards associated with the operation of high-pressure gas booster pumps, including but not limited to: high pressure hazards – failure of hoses, fittings or the pump body can lead to catastrophic mechanical failure and high-velocity projectiles; oxygen hazards – handling oxygen or nitrox involves a high risk of fire, rapid combustion or explosion; gas toxicity – improper blending or contamination of breathing gases can lead to hyperoxia, hypoxia, hypercapnia, narcosis or decompression sickness; and physical injury – serious injury or death resulting from explosion, fire or mechanical impact. I fully understand and accept that, by using the Product, I may be seriously injured or killed, even if I do nothing wrong. I represent and warrant that I am a certified scuba diver or technician with specialized training in gas blending and handling of high-pressure gases. I have read and understand the manufacturer’s operating instructions and all safety protocols. I understand that any unauthorized modifications, use of non-original parts, or failure to follow service intervals voids any applicable warranties and significantly increases the risk of catastrophic failure. I voluntarily release, discharge, waive and relinquish any and all actions, claims or causes of action for injuries, damages or death arising out of my purchase, use or misuse of the Product based upon any negligent act or omission of the Released Parties, nor any of their officers, directors, instructors, agents, employees, contractors or assigns including, but not limited to, the design, materials, assembly, performance, warnings, instructions for use or operation of the Product. I UNDERSTAND AND AGREE that Released Parties shall not be held liable or responsible in any way for any injury, death or other damages to me, my family, estate, heirs or assigns arising out of my purchase, use or misuse of the Product.
Description

USUN GBD40-OL Booster Pump by USUN

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USUN GBD40-OL Booster Pump: The Blending Station Workhorse

Blending your own gas opens up a whole new level of diving, but you need the right tools to do it safely and efficiently. The USUN GBD40-OL Booster Pump acts as the heavy lifter for your fill station. Whether you are topping off oxygen for decompression bottles, mixing helium for deep exploration, or boosting argon, this unit handles the job with reliability. It is specifically designed as a Double Action booster, meaning it moves gas on both the push and the pull of the stroke. This efficiency makes it the perfect choice for filling large-volume cylinders like twinsets (doubles) or multiple stage bottles without spending all day at the blending stick.

Safety and Simplicity 

Safety in the gas room is non-negotiable. Because this booster is air-driven, it requires no electrical connection, effectively removing heat, flame, or spark risks from the equation. It arrives oxygen cleaned, so you can start working with pure O2 right out of the box. The unit allows for infinitely variable cycling speed and output, giving you complete control over the fill process.

Built for the Long Haul 

Maintenance shouldn't be a constant headache. USUN designed the seal system for a long working life without the need for airline lubrication. This keeps your gas path clean and reduces the time you spend tinkering with the pump. It handles continuous stop-and-start applications without any adverse effects, so you can pause to check your mix or swap tanks without worrying about the equipment.

Power and Pressure 

This booster operates with a 40:1 pressure ratio. It requires a minimum inlet pressure of 25 bar (approx. 362 psi) and can deliver a maximum outlet pressure of 332 bar (approx. 4,815 psi).

Drive Gas Requirements 

You can power this unit using compressed gas from scuba cylinders or a shop compressor. While the manufacturer recommends 28 cfm to run the booster at a rapid 60-70 cycles per minute, we find that speed excessive for safety-conscious blending. Many of our clients operate this booster successfully with compressors delivering 10 cfm to 14 cfm, resulting in a slower, more controlled fill rate that generates less heat. Note: We highly recommend plumbing a dryer and filter between your shop compressor and the booster to protect the drive mechanism.

Upgrade your fill station with a booster you can trust. Order the USUN GBD40-OL today!

Features
  • Double Action Design: Moves gas on both strokes for faster filling of large cylinders like doubles and stages.
  • Air-Driven Safety: Operates without electricity, eliminating risks associated with heat, flames, or sparks.
  • Lubrication-Free: The seal system requires no airline lubrication, keeping the gas path clean and simplifying maintenance.
  • Variable Speed: Allows the user to control the cycling speed and output for precise blending.
  • Robust Construction: Designed to handle continuous stop/start applications without damage.
  • Versatile Gas Compatibility: Suitable for boosting Oxygen, Helium, Air, Argon, and most other gases.
  • Built-in Coupling: Most models feature an integrated coupling system for easier setup.
Specs
  • Brand: USUN
  • Model: GBD40-OL
  • Type: Double Action Gas Booster
  • Cleanliness: Oxygen Cleaned
  • Dimensions: 22 x 9.4 x 9.4 inches (56cm x 24cm x 24cm)
  • Pressure Ratio: 40:1
  • Minimum Inlet Pressure: 25 bar (approx. 362 psi)
  • Maximum Outlet Pressure: 332 bar (approx. 4,815 psi)
  • Maximum Drive Gas Pressure: 8 bar (approx. 116 psi)
  • Outlet Pressure Formula: 40PA+PI
  • Piston Rod Diameter: 25mm (approx. 1 inch)
  • Inlet Port Size: 1/4" NPT
  • Outlet Port Size: 1/4" NPT
  • Air Drive Port: G1/2"
Comparison Chart
USUN GBD40-OL Booster Pump Comparison Chart
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