Sherwood CGA 520 Acetylene Valve 3/8″-18 NGT Handwheel Operated

Sherwood AV Series offers handwheel-operated CGA 520 acetylene valve for 40 cu. ft. capacity B-style cylinders used in welding applications. The 18 NGT handwheel enables ease of use in transportation and in the field. This valve provides rugged durability for construction and field servicing applications.

Premium Construction

  • PRD Handwheel
  • Forged Brass Body with Aluminum A380 Handwheel
  • Outlet Thread Size: .895-18 NGO RH Ext.
  • Inlet Thread Size: 3/8″ NGT inlet thread size
  • 212° Fahrenheit fusible metal
  • O-Ring technology provides superior leak integrity
  • Easy operation and long service life
  • 100% leak test to 1.2 times service pressure
  • All markings are located on the valve neck to protect them from damage

Valve Specifications

  • CGA 520
  • Maximum Working Pressure: 500 PSI
  • Burst Pressure: 1125 PSI
  • Operating Temperature Range: -50° F to +149° F
  • Storage Temperature Range: -65° F to +155° F
  • Leak Rate Internal/External: 1×10-3 atm cc/sec.
  • Minimum Cycle Life: 2000 cycles
  • Cv Flow Factor: Standard: .14
  • Closing Torque: 20-30 in. – lbs.
  • Operating Torque: 6-10 in. – lbs.
  • Bonnet Nut Installation Torque: 15-35 in. – lbs.

Must be installed by a qualified cylinder technician due to torque specifications. Compressed gas cylinders and valves may be dangerous, please use caution and put safety first.

Have questions? Email us at [email protected].

Weight 2 lbs
Dimensions 6 × 5 × 5 in
Valve Working Pressure

500 PSI



Inlet Size

3/8"-18 NGT

Outlet Size

.895-18 NGO


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