Check valve according to the structure, can be divided into lift check valve, swing check valve and butterfly check valve.
1. Lift check valve is divided into two kinds of vertical and horizontal. 2. Swing check valve is divided into a single type, double valve and valve type three. 3. Butterfly check valve is straight through.
More than three kinds of check valve in the form of connection can be divided into threaded connection, flange connection, welding connection and clip connection.
Nominal diameter: 1.5" ~ 60" (DN40 ~ DN1500)
Pressure range: Class 150 ~ 2500 (PN16 ~ PN420)
Working temperature: -196℃ ~ +560℃
Body: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Alloy steel, Bronze, etc
Stem: Stainless Steel
Spring: Stainless Steel
Seat: EPDM, NBR, Stainless Steel
Operation: Hand Wheel, Electric, Pneumatic, etc
Face to Face
API594, API6D, JB/T8937
API594, API6D JB/T8937
JB/T74-90, GB/T13402, GB/T9112-9124, HG/T20592-20635, SH3406, ANSI B16.5, API604
JB/T74, GB/T9124, ASME B16.34, DIN2401, SH3406
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