Phone: 1-859-255-5001 Fax: 1-859-255-6656

Check Valves
Normally Closed
Air, Oil or Water

       

Specifications




ANSI Symbol
Body Cast Bronze (ASTM B-61)
Internal Parts Brass and Stainless Steel
Seals** Buna-N Standard (Optional Seals Available)
Temperature Range -30° F to +250° F with Standard Seals (400°F with optional Viton® seals)
Pressure Rating 0-500 PSI

NOTES:

** Main poppet seal on all models except 550124 and 550132 is Viton® which provides better wear characteristics and longer life. The balance of the seals are Buna-N.

 


Model Numbers

NPT Pipe Size
(inches)
Cv Factor Weight (pounds) Model Number Cracking Pressure (PSI)
1/2 3.19 2.00 550108 12
3/4 6.85 3.50 550112 6
1 12.10 5.50 550116 10
1 1/4 21.00 6.50 550120 2
1 1/2 25.80 8.00 550124 15
2 50.00 12.00 550132 7


How to Order Example:

This would be a normally closed check valve with 1 1/4" NPT ports and a "-26" seal option code for Viton® seals.

Note: When ordering, always state:
  1. Model
  2. Seal Option Code or Codes