copyright aimco term
Check Valves
These automatic devices prevent the reversed fluid flow. Opening/closing is initiated by the pressure differential. They are essential for the protection of pumps, compressors and other devices on the pipework.

For all presented valves, we propose different alternatives for the body/trim material (stainless steels, alloy, inconel...).

Swing check valve API 600
Cast steel
Fig. 1520B - 1521B - 1522B
  • Swing check valve class 150‑300‑600 lbs
  • Size: 2" to 36"
  • Bolted cover
  • Hinged disc
  • Stellited seat
  • Face to face dimension to ANSI B16.10
  • Flanged ends to ANSI B16.5
  • BW ends to ANSI B16.25
  • Tests to API 598
  • Material - body/cover: ASTM A216WCB
  • Material - trim: ASTM A182 F6
Lift check valve API 602
Forged steel
Fig. 1511-1512-1513
  • Lift check valve
    class 800-1500-2500 lbs
  • Full/reduced bore
  • Size: 1/4" to 2"
  • Bolted cover
  • Return spring
  • Stellited seat
  • NPT ends to ANSI B1.20.1
  • SW ends to ANSI B16.11
  • Tests to API 598
  • Material - body/cover: ASTM A105
  • Material - trim: ASTM A182 F6
Wafer check valve
Miniclap
Fig. 1527
  • Wafer check valve PN 10‑16‑25‑40‑50 ASA 150‑300 lbs
  • Size: DN40 to DN300
  • Metal/metal or viton/metal sealing
  • Tests to API 598
  • Material - body: ASTM A105
  • Material - trim: ASTM A182 F6
Lift check valve
EDF type
Fig. 1515
  • Size: DN20 to DN50
  • Bolted cover
  • Return spring
  • NPT or SW ends
  • Material - body/cover: Z2 CN18.10, Z2 CND17.12
  • Material - trim: Z2 CN18.10, Z2 CND17.12
Lift check valve
PN 64 EDF type
  • Size: DN08 to DN50
  • Bolted cover
  • Return spring
  • NPT, SW or flanged ends
  • Material - body/cover: XC 18S
  • Material - trim: Z12 CF13
Lift check valve
PN 160 EDF type
  • Size: DN08 àDN50
  • Welded cover
  • Return spring
  • Raccordement NPT, SW ou à brides
  • Material - body/cover: XC 18S
  • Material - trim: Z12 CF13