Colton Industries
Colton Industries
16 Cosentino Drive
Scarborough, Ontario, M1P 3A2
Tel: 888-300-9155
Fax: 888-300-9160
E-Mail: info@coltonind.com
Website: www.coltonind.com
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Series 'AVDT '

Available in sizes from 1/2" npt to 1" npt for operating pressures up to 300 psig liquid service at temperatures up to 338 deg. F. and specific gravities down to 0.95.

For installation at the high points of liquid systems to allow for the venting of air during initial system commissioning and for the removal of entrained gasses during system operation.

AVDT Models are:
  • Model AVDT-150: for service pressures up to 150 psig
  • Model AVDT-300: for service pressures up to 300 psig
Materials of Construction:
  • Body: Cast Iron
  • Cover: Cast Iron
  • Mechanism: Stainless Steel
  • Float: Stainless Steel
  • Disc: EPDM
  • Gasket: Non Asbestos Fibre
  • Cover Bolts: Steel
Features:
  • The soft EPDM seating allows for bubble tight operation and eliminates the nuisance 'spitting' often associated with metal-to-metal seats.
  • The cover is fitted with a 1/2" npt plugged connection. This can be fitted with a full bore ball valve to allow for manual by-pass to decrease start-up time during system filling.
Unit of Measure

Specifications

Connection Inlet Size1 N/A 3/4 in

Connection Outlet Size

 N/A 1/2 in

Orifice

 N/A 1.19 mm3/64 in

Maximum Operating Temperature TMO

 N/A 338 ºF

Cover Material

 N/A Cast Iron – A126, Class B

Body Material

 N/A Stainless Steel, T304, A240

Lever Frame Material

 N/A Stainless Steel, T304, A240

Seat Material

 N/A Stainless Steel, T304

Float Material

 N/A Stainless Steel, T304

Gasket Material

 N/A Non-Asbestos

Cover Bolt Material

 N/A Carbon Steel – SAE Grade 5

Bracket Material

 N/A Stainless Steel, T304

Bracket Pin Material

 N/A Stainless Steel, T304

Valve Pin Material

 N/A EPDM

Float Arm Material

 N/A Stainless Steel, T304, A240

Orifice Button Material

 N/A Viton

Pivot Pin Material

 N/A Stainless Steel, T303, A276

Pin Retainer Material

 N/A Stainless Steel, PH 15-7 MO

Pipe Plug (1/2") Material

 N/A Carbon Steel – SAE Grade 5

Locator Material

 N/A Stainless Steel – T18-8, A276
  • 1 3/4" is standard, for another click on Request Information Button