Western Enterprises QDB31 Fuel Gas Quick Connect Regulator-to-Hose with Check Valve

Western Enterprises QDB31 quick connect provides secure, gas-tight connections between fuel gas regulators and hoses with integrated reverse flow protection. This brass-constructed fitting features a spring-loaded locking mechanism that responds to fingertip action for fast, reliable connections in demanding welding and cutting operations.

The non-interchangeable design prevents accidental gas mixing, while the integral check valve provides instant closure with total shutoff at only 10 oz. of back pressure. Color-coded red for fuel gas service, this fitting exceeds CGA flow specifications and is cycle tested for over 10,000 operations.

• Material: Brass construction for long service life
• Connection Type: QDB205 Male Plug; QDB20 Socket Female
• Gas Service: Fuel Gas (9/16"-18 LH threading)
• Maximum Operating Pressure: 200 PSIG
• Weight: 1.5 lbs
• Flow Capacity: 1100 SCFH at 125 PSIG inlet pressure
• Check Valve: Integral reverse flow protection
• Certification: UL Listed
• Safety Features: Double seal socket connection

Compatible Components

• QDB205 — Male Plug (Fuel Gas)
• QDB206 — Female Socket (Fuel Gas)
• QDB201 — Female Socket (Hose-to-Hose)
• QDB200 — Male Plug (Torch Connection)
• QDB21 — Hose-to-Hose Fuel Gas Assembly
• QDB11 — Torch-to-Hose Fuel Gas Assembly
• QDB551 — KwikLok Female Socket (Fuel Gas)
• QDB661 — KwikLok Female Socket (Regulator-to-Hose)

Designed for B-size welding and cutting equipment with 9/16"-18 connections, this quick connect fitting delivers the reliability and safety features required for professional oxy-fuel applications in fabrication and maintenance shops.