Back check valves (threaded)

  • Heavy-duty construction for long life endurance
  • Positive seal of soft seat valves due to synthetic rubber seat disc
  • Faster flow rate provided by swing-away checks
  • Low pressure due to generous flow channels
  • Faster filling of bulk tanks
  • Available in steel, brass and stainless-steel

Threaded back check valves are one-way valves that protect container contents from escaping if piping or fittings accidentally break. Frequently they are found in gas installations where there is a requirement for a high, single directional flow.

Body:
Brass, Cadmium plated steel, Carbon steel, Stainless steel
Disc:
Brass, Cadmium plated steel
Stem:
Brass, Cadmium plated steel, Stainless steel
Spring:
Carbon steel, Stainless steel
Seat disc:
Synthetic rubber
Guide:
Carbon steel, Stainless steel
Poppet:
Stainless steel
Gas types:
LPG (Propane, Butane), NH3 (Ammonia, Anhydrous Ammonia)
Connections:
Thread
Type:
NPT
Operating pressure:
Up to 27.5 bar (400 psi)
Internal pressure:
Up to 131 bar (1900 psi)
Temperature range:
-45˚C to +148˚C (-50˚F to +300˚F)
Sizes and range:
1/2" to 3"
Series available:
143 model, 302 model, 3176 Series, 33146 Series, 50 model, 51 model, A3186, A3187S, A3196, A3276BC, A3400L4, A3400L6, A6586D
Standards:
CE-PED, UL listed

*Materials and specifications are subject to generalisation. Our experienced people are ready to help you find the correct fit for your application.

Body:
Brass, Cadmium plated steel, Carbon steel, Stainless steel
Disc:
Brass, Cadmium plated steel
Stem:
Brass, Cadmium plated steel, Stainless steel
Spring:
Carbon steel, Stainless steel
Seat disc:
Synthetic rubber
Guide:
Carbon steel, Stainless steel
Poppet:
Stainless steel
Gas types:
LPG (Propane, Butane), NH3 (Ammonia, Anhydrous Ammonia)
Connections:
Thread
Type:
NPT
Operating pressure:
Up to 27.5 bar (400 psi)
Internal pressure:
Up to 131 bar (1900 psi)
Temperature range:
-45˚C to +148˚C (-50˚F to +300˚F)
Sizes and range:
1/2" to 3"
Series available:
143 model, 302 model, 3176 Series, 33146 Series, 50 model, 51 model, A3186, A3187S, A3196, A3276BC, A3400L4, A3400L6, A6586D
Standards:
CE-PED, UL listed

*Materials and specifications are subject to generalisation. Our experienced people are ready to help you find the correct fit for your application.

Alternative products

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Did you know?

MAKEEN Gas Equipment can provide a threaded type with a threaded flange connection available in 1-½” to 8″

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