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680SSHT - CGA 680 Stainless Steel Nut and Nipple Assembly 6000 PSI

Packaging: 1 of each
$200.00/ea

Usually ships within 3-5 business days

SKU: 680SSHT Categories: ,

OVERVIEW

High-Performance High-Pressure Gas Connection

The 680SSHT Nut/Nipple 680 Bottle Tester is a specialized gas fitting assembly designed for the rigorous demands of high-pressure gas handling and cylinder testing. Engineered from premium Stainless Steel, this component is built to withstand internal pressures of up to 6000 PSI, making it an essential component for hydrostatic testing rigs, high-pressure gas manifolds, and trans-filling operations involving inert gases.

Unlike standard brass fittings which may deform or suffer from thread galling under extreme torque and pressure, stainless steel provides superior tensile strength and hardness. This ensures that the connection maintains its integrity over repeated cycles of connection and disconnection, a common requirement in bottle testing environments. The assembly features a standard CGA 680 geometry, which is the designated Compressed Gas Association standard for inert gases such as Argon, Helium, and Nitrogen at pressures typically exceeding 3000 PSIG.

The precision machining of the nut and nipple sealing surfaces ensures a gas-tight seal, minimizing the risk of leaks which can be dangerous at such high pressures. This fitting is compatible with standard high-pressure cylinder valves and is an ideal choice for MRO (Maintenance, Repair, and Operations) professionals maintaining gas distribution systems or conducting regulatory cylinder inspections.

Technical Specifications

  • Material: Stainless Steel
  • Connection Standard: CGA 680
  • Maximum Pressure: 6000 PSI
  • Compatible Gases: Nitrogen, Argon, Helium, and other inert mixtures
Additional Information
Packaging Description:1 of each, 1 per each
Item:Gas Fitting
Material:Stainless Steel
Pressure Rating:6000 PSI
Connection Type:CGA 680
Gas Service:Argon, Helium, Inert Gas, Nitrogen
Application:Bottle Testing, High Pressure Manifolds, Hydrostatic Testing
Component Type:Nut and Nipple Assembly

INCLUDED

  • 1 x Stainless Steel CGA 680 Nut
  • 1 x Stainless Steel CGA 680 Nipple

APPLICATIONS

  • Hydrostatic cylinder testing
  • High-pressure gas manifold systems
  • Nitrogen purging and pressure testing
  • Argon and Helium trans-filling
  • Laboratory gas distribution

FAQ

This Nut/Nipple assembly is rated for up to 6000 PSI, making it suitable for high-pressure testing applications.

CGA 680 is the standard connection for inert gases such as Argon, Nitrogen, and Helium at pressures typically above 3000 PSI.

Stainless steel offers higher tensile strength and better durability, which is critical for safety at 6000 PSI and prevents thread wear during frequent use.

No, CGA 680 is specifically for inert gases. High-pressure Oxygen typically uses CGA 577 or CGA 701, and standard pressure uses CGA 540. Never use incompatible fittings for Oxygen.

CGA 680 connections typically rely on the nipple geometry for sealing, but some variations may use a washer. Please check your specific sealing requirements; washers are sold separately if needed.

It depends on the pressure. Standard welding cylinders (around 2000-2500 PSI) often use CGA 580. CGA 680 is used for high-pressure cylinders (3000-6000 PSI). Check your cylinder valve before purchasing.

A bottle tester application refers to setups used for hydrostatic testing or leak checking of gas cylinders, requiring fittings that can withstand test pressures higher than normal working pressures.

Generally, CGA connections seal at the nipple seat (metal-to-metal or o-ring) and do not require Teflon tape on the threads of the nut. Tape is for NPT threads.

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