M&M Rogness Equipment Co.
M & M Rogness Equipment Co.
1941 W. County Road C-2
Roseville, MN 55113
Phone: 651-633-0550
Fax: 651-633-6797
Email: sales@mmrogness.com
Website: www.mmrogness.com
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These spring-operated poppet valves, with optional relief settings, allow free flow in only one direction and prevent backflow – sometimes referred to as “backflow preventor”, “flow stop”, or “non-return” valve. They also are used for relief and by-pass functions; however, they should not be used as safety relief valves. Kepner's Flexible Seal Seat™ combines metal-to-metal contact with a resilient seal seat ensuring dependable bubble-tight shutoff of liquid or gas, and long service life. Standard and specialty valve designs handle a wide variety of applications.

For Commercial Brass F Hex = 2 3/4 inch.
Unit of Measure

Specifications

Body Materials

 N/A 303 Stainless Steel 316 Stainless Steel Aluminum Brass Standard Steel
O-Ring Seals1 N/A Buna-N EP Neoprene Viton®
Temperature2 N/A -300 to 450 ºF-184 to 232 ºC

Crack Pressure Ranges

 N/A 1 to 2 psi0.07 to 0.14 bar

Relief / Check Crack Pressures

 N/A 5 psi10 psi25 psi50 psi65 psi0.35 bar0.7 bar1.7 bar3.5 bar4.5 bar

Max. Operating Pressure

 N/A 3000 psi207 bar

Max. Flow

 N/A 500 gpm1893 lpm

A - Total Length

 N/A 6.380 in

B1

 N/A 0.960 in

B2

 N/A 0.970 in

C

 N/A 4.450 in

D

 N/A 0.730 in

E

 N/A 0.880 in

F Hex

 N/A 2 5/8 in

G - End Connections

 N/A 1 1/4 JIC

H - End Connections

 N/A 1 1/4 MPT

Features and Benefits

N/A
- Flexible Seal Seat™ for zero leak (bubble-tight) seal at low and high pressures
- O-Ring seal positively secured
- Non-pressurized threads
- Poppet stop inside valve body prevents spring from bottoming out
- Generous flow passages allow full flow with minimal pressure drop

  • 1 Other materials available
  • 2 O-Ring dependent