Lift-type check valve KM 9901 (Z 35) is
unidirectional valve designed to prevent from reverse flow of the service fluid.
The direction of the fluid flow is marked with an arrow on the valve's body
from the bottom to the top, i. e. under the disc. In case the fluid starts
flowing back, the disc closes the check valve automatically. Check valve is not
designed as conventional isolating valve. For temperatures from −60 °C to
Suitable for water, steam, gas, oil, crude oil, and other liquids
Approved for fluids in groups 1 (hazardous) and 2 according to
DN 50 – DN 400, PN 16 – PN 400
primary sealing: metal-metal.
Connection to piping
flanged – EN, API
Compliance with standards
EN 13709, EN 12516–1, EN 1092–1,
EN 558–1 or not standardised,
ČSN 13 3048.
EN 12266–1, leakage rate A (rate C allowed)
standard: S355J2, A350 LF2, 1.4541, 1.4571,
upon request: P265GH, 1.7335, 1.5415 (16Mo3) and other.
Optional accessories, adjustments and services
different face-to-face dimensions,
adaptation of face form (Groove, Tongue, Spigot, Recess, O-ring
special adjustments according to customer requests.