A Division of Defontaine of America, Inc.

Definox Check and Pressure Relief Valves

SPECIFIC FEATURES FOR CHECK VALVES

 

  • The check and pressure relief valves valve have been designed especially for the food, pharmaceutical, cosmetic and chemical industries.
  • No product entrapment areas, avoiding bacteriological development - when properly installed.
  • Full bore.
  • Easy disassembly, without tools.
  • Body is machined from solid bar.
  • Low pressure drop.

GENERAL CHARACTERISTICS
Check valve has full bore opening.  The back pressure in the bore section is very low (approximately 1,3 psi).
Dimensions: 1" - 1.5" - 2" - 2.5" - 3" - 4"
Material
Plus - Body - Spring: 304L or 316Lstainless steel
Seal: Viton, silicone, metal-to-metal, molded Viton, Teflon on fractional sizes
Valve Ends
Butt weld end
Clamp
Surface finish
External RA = 150 Grit
Internal RA = 180 Grit standard
400 Grit available, 10 RA
Electro polishing available
Working conditions
  • Maximum pressure at 68oF 145 psi
  • Back pressure 90 mbar (1,3 psi)
  • Permissible maximum temperature 248oF

SPECIFIC FEATURES FOR  PRESSURE RELIEF  VALVES 

GENERAL CHARACTERISTICS
  • Ideal for pump bypass loops.
  • Field adjustable or factory presets
Dimensions: 1 1/2" -  2"
Material
Plug: 316L stainless steel
Seal: Viton, or Teflon (special order)
Valve Ends
Butt weld
Clamp - special end connections also available by special order
Calibration Pressure
Spring 1: 1,45 to 43 psi
Spring 2: 43 to 109 psi
Spring 3: 109 to 188 psi
Permissible Maximum Temperature
248oF

 

Viton® is a registered trademark of DuPont Dow Elastomers.
~ Technical data mentioned on this document can vary according to the technical changes.

~ The data on this site is as technically accurate as possible, but is subject to change and correction by Definox - as required.

 

Definox ~ 2001

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Definox is a registered trademark of Defontaine Group
Copyright 2001 Defontaine of America
All Rights Reserved