STANDARDS

Flange Butterfly Valves: MSS SP-67
Wafer Butterfly Valves: MSS SP-68 or API 609
Face to Face dimensions: ANSI B16. 10 MSS SP-67 and MSS SP-68 or 609
Test: API 598

End flange dimensions
NPS 1 1/2-24: ANSI B16. 5
NPS 30-72: MSS SP-44 or API605

Type of construction
Flange Butterfly Valves (Hard face and soft face)
Watfer Butterfly Valves (Hard face and soft face)

Type of connection
RF and RTJ flange ends to ANSI B16. 5 or API 605
And MSS SP-44 standard.

Type of operation: Lever
Worm Gear actuator, Electric actuator, Pneumatic actuator.
Actuator dimensions to ISO 5211 standard.