Print Back
Features
  • Popoff or inline valves
  • Adjustable crack pressure
  • Zero leakage
  • Accurate set pressure
  • Tamper-proof adjustment
  • 100% seat leakage tested
  • PED certifications and CE marking available for most models
Circle Seal Relief Valve 500 Series Popoff
Unit of Measure
1 2 3 4 

Item #

Variation

Body Material

Seal Material

Valve Size

End Connection

Cracking Pressure

Operating Temperature

D520A-2M N/A Popoff with deflector cap N/A Aluminum N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520A-3M N/A Popoff with deflector cap N/A Aluminum N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520A-4M N/A Popoff with deflector cap N/A Aluminum N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520A-6M N/A Popoff with deflector cap N/A Aluminum N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520A-8M N/A Popoff with deflector cap N/A Aluminum N/A Teflon®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520B-1M N/A Popoff with deflector cap N/A Brass N/A Teflon®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520B-2M N/A Popoff with deflector cap N/A Brass N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520B-3M N/A Popoff with deflector cap N/A Brass N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520B-4M N/A Popoff with deflector cap N/A Brass N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520B-6M N/A Popoff with deflector cap N/A Brass N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520B-8M N/A Popoff with deflector cap N/A Brass N/A Teflon®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520T1-1M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Teflon®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520T1-2M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520T1-3M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520T1-4M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520T1-6M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D520T1-8M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Teflon®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
D524A-1M N/A Popoff with deflector cap N/A Aluminum N/A Silicone N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524A-2M N/A Popoff with deflector cap N/A Aluminum N/A Silicone N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524A-3M N/A Popoff with deflector cap N/A Aluminum N/A Silicone N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524A-4M N/A Popoff with deflector cap N/A Aluminum N/A Silicone N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524A-6M N/A Popoff with deflector cap N/A Aluminum N/A Silicone N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524A-8M N/A Popoff with deflector cap N/A Aluminum N/A Silicone N/A 1 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524B-1M N/A Popoff with deflector cap N/A Brass N/A Silicone N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524B-2M N/A Popoff with deflector cap N/A Brass N/A Silicone N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524B-3M N/A Popoff with deflector cap N/A Brass N/A Silicone N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524B-4M N/A Popoff with deflector cap N/A Brass N/A Silicone N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524B-6M N/A Popoff with deflector cap N/A Brass N/A Silicone N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524B-8M N/A Popoff with deflector cap N/A Brass N/A Silicone N/A 1 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-1M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-2M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-3M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-4M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-6M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-8M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 1 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D532A-1M N/A Popoff with deflector cap N/A Aluminum N/A Viton®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532A-2M N/A Popoff with deflector cap N/A Aluminum N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532A-3M N/A Popoff with deflector cap N/A Aluminum N/A Viton®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532A-4M N/A Popoff with deflector cap N/A Aluminum N/A Viton®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532A-6M N/A Popoff with deflector cap N/A Aluminum N/A Viton®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532A-8M N/A Popoff with deflector cap N/A Aluminum N/A Viton®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532B-1M N/A Popoff with deflector cap N/A Brass N/A Viton®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532B-2M N/A Popoff with deflector cap N/A Brass N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532B-3M N/A Popoff with deflector cap N/A Brass N/A Viton®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532B-4M N/A Popoff with deflector cap N/A Brass N/A Viton®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532B-6M N/A Popoff with deflector cap N/A Brass N/A Viton®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532B-8M N/A Popoff with deflector cap N/A Brass N/A Viton®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532T1-1M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532T1-2M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532T1-3M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532T1-4M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532T1-6M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532T1-8M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D533A-1M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533A-2M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533A-3M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533A-4M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533A-6M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533A-8M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-1M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-2M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-3M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-4M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-6M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-8M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-1M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-2M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-3M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-4M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-6M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-8M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D559A-1M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559A-2M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559A-3M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559A-4M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559A-6M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559A-8M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559B-1M N/A Popoff with deflector cap N/A Brass N/A Buna N N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559B-2M N/A Popoff with deflector cap N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559B-3M N/A Popoff with deflector cap N/A Brass N/A Buna N N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559B-4M N/A Popoff with deflector cap N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559B-6M N/A Popoff with deflector cap N/A Brass N/A Buna N N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559B-8M N/A Popoff with deflector cap N/A Brass N/A Buna N N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559T1-1M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Buna N N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559T1-2M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559T1-3M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Buna N N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559T1-4M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559T1-6M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Buna N N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559T1-8M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Buna N N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D562A-1M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562A-2M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562A-3M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562A-4M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562A-6M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562A-8M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-1M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-2M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-3M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-4M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-6M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-8M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562T1-1M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Ethylene Propylene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562T1-2M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Ethylene Propylene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562T1-3M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Ethylene Propylene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562T1-4M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Ethylene Propylene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562T1-6M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Ethylene Propylene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562T1-8M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Ethylene Propylene N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
K520T1-1M N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-2M N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-2MP N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-3M N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-3MP N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-4M N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-4MP N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-6M N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-6MP N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-8M N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-8MP N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 1 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
K520T1-10MP N/A Cryogenic Service N/A 316 Stainless Steel N/A Teflon®
N/A 1 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
520A-1M N/A Popoff N/A Aluminum N/A Teflon®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520A-2M N/A Popoff N/A Aluminum N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520A-2MP N/A Inline N/A Aluminum N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520A-3M N/A Popoff N/A Aluminum N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520A-4M N/A Popoff N/A Aluminum N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520A-6M N/A Popoff N/A Aluminum N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520A-8M N/A Popoff N/A Aluminum N/A Teflon®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-1M N/A Popoff N/A Brass N/A Teflon®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-2M N/A Popoff N/A Brass N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-2MP N/A Inline N/A Brass N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-3M N/A Popoff N/A Brass N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-3MP N/A Inline N/A Brass N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-4M N/A Popoff N/A Brass N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-4MP N/A Inline N/A Brass N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-6M N/A Popoff N/A Brass N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-6MP N/A Inline N/A Brass N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-8M N/A Popoff N/A Brass N/A Teflon®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-8MP N/A Inline N/A Brass N/A Teflon®
N/A 1 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520B-10MP N/A Inline N/A Brass N/A Teflon®
N/A 1 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-1M N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-2M N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-2MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-3M N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-3MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-4M N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-4MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-6M N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-6MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-8M N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-8MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 1 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
520T1-10MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 1 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -100 to 400 ºF
524A-1M N/A Popoff N/A Aluminum N/A Silicone N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524A-2M N/A Popoff N/A Aluminum N/A Silicone N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524A-2MP N/A Inline N/A Aluminum N/A Silicone N/A 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524A-3M N/A Popoff N/A Aluminum N/A Silicone N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524A-4M N/A Popoff N/A Aluminum N/A Silicone N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524A-6M N/A Popoff N/A Aluminum N/A Silicone N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524A-8M N/A Popoff N/A Aluminum N/A Silicone N/A 1 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-1M N/A Popoff N/A Brass N/A Silicone N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-2M N/A Popoff N/A Brass N/A Silicone N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-2MP N/A Inline N/A Brass N/A Silicone N/A 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-3M N/A Popoff N/A Brass N/A Silicone N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-3MP N/A Inline N/A Brass N/A Silicone N/A 3/8 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-4M N/A Popoff N/A Brass N/A Silicone N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-4MP N/A Inline N/A Brass N/A Silicone N/A 1/2 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-6M N/A Popoff N/A Brass N/A Silicone N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-6MP N/A Inline N/A Brass N/A Silicone N/A 3/4 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-8M N/A Popoff N/A Brass N/A Silicone N/A 1 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-8MP N/A Inline N/A Brass N/A Silicone N/A 1 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524B-10MP N/A Inline N/A Brass N/A Silicone N/A 1 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-1M N/A Popoff N/A 316 Stainless Steel N/A Silicone N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-2M N/A Popoff N/A 316 Stainless Steel N/A Silicone N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-2MP N/A Inline N/A 316 Stainless Steel N/A Silicone N/A 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-3M N/A Popoff N/A 316 Stainless Steel N/A Silicone N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-3MP N/A Inline N/A 316 Stainless Steel N/A Silicone N/A 3/8 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-4M N/A Popoff N/A 316 Stainless Steel N/A Silicone N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-4MP N/A Inline N/A 316 Stainless Steel N/A Silicone N/A 1/2 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-6M N/A Popoff N/A 316 Stainless Steel N/A Silicone N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-6MP N/A Inline N/A 316 Stainless Steel N/A Silicone N/A 3/4 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-8M N/A Popoff N/A 316 Stainless Steel N/A Silicone N/A 1 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-8MP N/A Inline N/A 316 Stainless Steel N/A Silicone N/A 1 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
524T1-10MP N/A Inline N/A 316 Stainless Steel N/A Silicone N/A 1 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
532A-1M N/A Popoff N/A Aluminum N/A Viton®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
532A-2M N/A Popoff N/A Aluminum N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
532A-2MP N/A Inline N/A Aluminum N/A Viton®
N/A 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -20 to 400 ºF
532A-3M N/A Popoff N/A Aluminum N/A Viton®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
532A-3MP N/A Inline N/A Aluminum N/A Viton®
N/A 3/8 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -20 to 400 ºF
532A-4M N/A Popoff N/A Aluminum N/A Viton®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
532A-4MP N/A Inline N/A Aluminum N/A Viton®
N/A 1/2 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -20 to 400 ºF
532A-6M N/A Popoff N/A Aluminum N/A Viton®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
532A-6MP N/A Inline N/A Aluminum N/A Viton®
N/A 3/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -20 to 400 ºF
532A-8M N/A Popoff N/A Aluminum N/A Viton®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
532A-8MP N/A Inline N/A Aluminum N/A Viton®
N/A 1 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -20 to 400 ºF
532B-1M N/A Popoff N/A Brass N/A Viton®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
532B-2M N/A Popoff N/A Brass N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
532B-2MP N/A Inline N/A Brass N/A Viton®
N/A 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -20 to 400 ºF
532B-3M N/A Popoff N/A Brass N/A Viton®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
532B-3MP N/A Inline N/A Brass N/A Viton®
N/A 3/8 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -20 to 400 ºF
532B-4M N/A Popoff N/A Brass N/A Viton®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
532B-4MP N/A Inline N/A Brass N/A Viton®
N/A 1/2 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -20 to 400 ºF
532B-6M N/A Popoff N/A Brass N/A Viton®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
Unit of Measure
1 2 3 4