The Simmons MFG 504SB check valve is designed for use in various applications, including water, oil, and gas. This model features a size of one and one-fourth inches and a maximum pressure rating of four hundred pounds per square inch. Constructed with a durable silicon bronze cast body and equipped with a stainless steel spring, it ensures reliable performance. A Buna-N O-ring enhances the sealing capability, making it reliable for both residential and commercial uses.
Constructed with a silicon bronze cast body for strength
Rated for a maximum pressure of 400 psi
Meets NSF/ANSI 372 standards for safety
Product Highlights
This check valve is ideal for preventing backflow in water and gas lines, ensuring safe operation in plumbing systems.
Product Information
Standard Information
Material: Bronze, Stainless Steel
Brand: Simmons
Technical Specifications
Inlet Connection Type:
National Pipe Tapered
Outlet Connection Type:
National Pipe Tapered
Maximum Operating Pressure:
400 pounds per square inch
Part Number:
504SB
Size:
1-1/4 inches
Check Mechanism:
Poppet
Pipe Size:
1-1/4 in
Media:
Water, Oil, Gas
Body Material:
Silicon Bronze
Connection Type:
FNPT x FNPT
Media Temp. Range:
190 °F
Overall Length:
3.75 in
Standards:
NSF/ANSI 372 NSF Certifications for Food and Drinking Water, NSF 61
Cracking Pressure:
0.5 psi
Mounting Orientation:
Horizontal, Vertical
Seat Material:
Bronze
Seal Material:
Buna-N
Poppet Material:
304 Stainless Steel
Spring Material:
302 Stainless Steel
Height - Cap to Inlet Center:
1-1/2 in
Hex Size:
2-1/4 in
Valve Series:
500 SB
Manufacturer Warranty:
1 year
Connection Size - Side 1:
1-1/4 in
Connection Gender - Side 1:
Female
Connection Type - Side 1:
NPT
Connection Size - Side 2:
1-1/4 in
Connection Type - Side 2:
NPT
Connection Gender - Side 2:
Female
Operating Temperature - Maximum:
190 °F
End Connection:
Female Threaded x Female Threaded
End to End Distance:
3-3/4 inches
Inclusions/Features:
Silicon Bronze Cast Poppet, Buna N O Ring, Stainless Steel Washer and Stainless Steel Locknut