2" Thru'' 42"
and Special Classes
Carbon Steel, Alloy Steel, Stainless Steel, Duplex & Super Duplex Steel and Others on Special Request
STANDARDS
Bonetti’s CMI check valves have been designed, rated, manufactured
and inspected, where applicable, in accordance with the most
popular international Standards, namely:
- ASME B16.34 - Steel valves, Flanged and Butt-welding Ends
- ASME B16.10 - Face-to-Face and End-to-End Dimensions
- Applicable Sections of ASME Boiler and Pressure Vessel
Code, including Nuclear Section III.
- MSS SP 44 Steel pipe line flanges
- MSS SP 61 Hydrostatic testing of steel valves
- API Standard 598 - Valve inspection and test
- ASME B16.25 - Buttwelding Ends
- Others (on request).
CONNECTIONS
BONETTI’s CMI check valves illustrated in this catalogue have
Buttwelding End connections according to ASME B16.25 (see
page12) or to different Standard: Depending on size and patterns
connection are available also with Flanged Ends according to ASME
B16.5 (usually for Class 600 only, not for higher pressure Classes) or
to different standard.
We can supply check valves with connections different from the
above, e.g. butt welding Ends.to DIN or different ones.
OPERATIONS
BONETTI’s CMI check valves are straight-through valves usually
operated automatically. The Testable Pneumatic check type is
equipped with a safety pneumatic actuator that provides assistance to
the valve at the beginning of closing operation.