Corporate Home
Search Catalog
      GO   
 All Categories    QS Medium Pressure O-Ring Check Valves
View Cart View RFQs  | Shipping 
 | Tax 
 | Terms
 Shopping Cart 0 Items
 Request for Quote 0 Items
All Categories > High Pressure Fittings and Tubing > QS Series Fittings and Tubing > QS Medium Pressure Check Valves > QS Medium Pressure O-Ring Check Valves > View Items  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites

QS Medium Pressure O-Ring Check Valves

Check up to five results to perform an action.


Provide unidirectional flow and tight shut-off for liquids and gases with high reliability. When differential drops below cracking pressure*, valve shuts off. (Not for use as relief valve.)

Materials: 316 Stainless Steel: body, cover, poppet and cover gland. 300 Series Stainless Steel: spring Standard O-ring: Viton, for operation to 500° F (260°C). Buna-N or Teflon available for 250°F (121°C) or 400°F (204°C) respectively; specify when ordering.

*Cracking Pressure: 20 psi (1.38 bar) ±30%. Springs for higher cracking pressures (up to 100 psi (6.89bar)) available on special order for O-ring style check valves only.

Caution: While testing has shown O-Rings to provide satisfactory service life, both cyclic and shelf life may vary widely with differing service conditions, properties of reactants, pressure and temperature cycling and age of the O-ring. FREQUENT INSPECTIONS SHOULD BE MADE to detect any deterioration, and O-rings replaced as required.

Caution: See Tubing section for proper selection of tubing.

Note: All check valves are furnished complete with connection components unless otherwise specified.

All dimensions for reference only and subject to change.
For prompt service, Autoclave stocks select products. Consult your local representative.
All general terms and conditions of sale, including limitations of our liability, apply to all products and services sold.




Compare Items Add To Cart Request Quote
   
  Results 1 - 4 of 4 1 

Item #

Fits Connection Type

Pressure Rating

Orifice

Rated Cv

QSO4400 QS250 15000 psi
1034.20
bar
0.188 Inch
4.78
mm
0.15
QSO6600 QS375 15000 psi
1034.20
bar
0.250 Inch
6.35
mm
0.63
QSO9900 QS562 15000 psi
1034.20
bar
0.359 Inch
9.12
mm
2.30
QSO12 QS750 15000 psi
1034.20
bar
0.516 Inch
13.11
mm
4.70
  Results 1 - 4 of 4 1 

2012©All Rights Reserved • Parker Autoclave Engineers • Erie, PA USA