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591N-1500-680 - Gentec 591N High Pressure Piston Regulator, CGA-680, 1500 PSI Delivery

Packaging: 1 of each
$947.89/ea $627.44/1 of each only $627.44/eaSave 34%

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SKU: GENS591N-1500-680 Categories: ,

OVERVIEW

Industrial-Grade High Pressure Control

The Gentec 591N-1500-680 High Pressure Regulator is a premium gas control device engineered for the rigorous demands of industrial maintenance, repair, and operations (MRO). Unlike standard welding regulators that utilize a rubber diaphragm, the 591N series employs a robust piston actuation mechanism. This design choice is critical for applications requiring high delivery pressures, as pistons are significantly more durable and resistant to the wear and tear caused by pressure spikes and high-flow surges. Designed for use with inert gases such as Argon, Helium, and Nitrogen, this regulator features a CGA-680 inlet connection, which is the standard for high-pressure cylinders ranging from 3001 to 5500 PSIG.

Reliability is paramount in petrochemical, aerospace, and heavy manufacturing sectors. The Gentec 591N addresses this with a body and housing cap machined from solid Class 'A' brass bar stock. This construction method eliminates the porosity issues sometimes found in forged or cast bodies, ensuring a leak-tight seal and exceptional structural integrity. The internal components are equally well-engineered; a sintered bronze inlet filter prevents particulate contamination—a common cause of regulator failure—while a Delrin cap bushing ensures that pressure adjustments remain smooth and precise over the lifespan of the unit.

This specific model is calibrated for a delivery pressure range of up to 1500 PSI, making it an indispensable tool for specialized tasks such as charging hydraulic accumulators, pressurizing aircraft struts, or conducting high-pressure leak tests on pipeline systems. The large, 2-1/2 inch steel gauges provide clear, dual-scale readings, allowing operators to monitor cylinder and delivery pressure with accuracy. For facility managers and procurement specialists seeking a regulator that combines high-pressure capability with long-term reliability, the Gentec 591N-1500-680 is the definitive choice.

Additional Information
Used On Which Gas:Argon or Nitrogen, Inert Gases
Max Outlet:1500psi, n/a
Gas Type:Argon, Helium, Nitrogen
Gauge Type:2-1/2" Steel Dual Scale
Body Material:Machined Brass
Filter Type:Sintered Bronze
Applications:Accumulator Charging, High Pressure Testing, Oil and Gas Industry
----- new values below ----
Gas Type:Argon, Helium, Nitrogen
Regulator Type:Piston
Gauge Type:2-1/2" Steel Dual Scale
Body Material:Machined Brass
Filter Type:Sintered Bronze
Applications:High Pressure Testing, Accumulator Charging, Oil and Gas Industry
Brand:Gentec
CGA Fitting:cga680
Item:Regulator
Used On Which Gas:Inert Gases, Argon or Nitrogen
Max Outlet:1500psi
Max Inlet:5500psi

INCLUDED

  • 1 x Gentec 591N Series High Pressure Regulator
  • 1 x Set of 2.5-inch Dual Scale Gauges (Inlet/Outlet)
  • 1 x CGA-680 Inlet Connection
  • 1 x Outlet Fitting (1/4" SAE Flare or similar standard)
  • 1 x Instructions/Safety Manual

APPLICATIONS

  • High Pressure Testing: Ideal for leak testing pipelines, HVAC systems, and pressure vessels using Nitrogen or other inert gases.
  • Accumulator Charging: Used to pressurize hydraulic accumulators to specific operational requirements.
  • System Purging: High-flow purging of large piping systems in petrochemical and refinery applications.
  • Aircraft Maintenance: Strut and tire inflation requiring high-pressure Nitrogen.
  • Laboratory & Research: Delivering high-pressure inert gas for catalytic reactions or process control.

FAQ

A piston regulator uses a solid metal piston to control pressure, whereas a diaphragm regulator uses a flexible rubber or metal disc. Piston regulators are generally more durable and better suited for high-pressure applications (both inlet and outlet) because they are less prone to rupturing under pressure spikes.

CGA-680 is a standardized cylinder connection fitting designated by the Compressed Gas Association. It is specifically designed for inert gases (like Argon, Nitrogen, and Helium) in high-pressure cylinders, typically ranging from 3001 to 5500 PSIG.

No. This regulator is designed and cleaned for inert gas service. Using it with Oxygen is dangerous due to the risk of adiabatic compression ignition, especially with the materials and lubricants used in inert gas equipment. Always use a regulator specifically rated and cleaned for Oxygen service (CGA-540 or similar).

The Gentec 591N-1500-680 is rated for a maximum delivery pressure of 1500 PSI. It is important to ensure that any downstream equipment (hoses, valves, tanks) is rated to handle this pressure.

Yes, absolutely. The high delivery pressure (1500 PSI) makes it excellent for pressure testing refrigeration lines and systems that require high-pressure Nitrogen to identify leaks.

Pressure is adjusted via the T-handle on the front of the regulator. Turning the handle clockwise increases the delivery pressure, while turning it counter-clockwise decreases it. Always adjust pressure while gas is flowing slightly for the most accurate setting.

Yes, this model typically comes with two 2-1/2 inch steel dual-scale gauges: one indicating the cylinder (inlet) pressure and one indicating the delivery (outlet) pressure.