The Z Series high temperature
butterfly valve is designed to regulate the back pressure of exhaust
gasses during engine testing at temperatures as high as
wafer pattern valves are manufactured in sizes DN50 to DN200 (2” to 8”) operating at a
maximum differential pressure of 3.5 bar g at elevated temperature.
The valve can be manually
operated (screw lockable in any position) or pneumatically or
electrically actuated with 4-20mA positioners. Actuated versions
incorporate an extension stem designed to prevent heat from being
conducted to the actuator.
The wafer pattern
body fits between BS, DIN and ANSI flanges.
Special adapters e.g. 2" flanged to 2" screwed NPT, mating high
temperature gaskets and flange bolting can also be supplied.
Sizes DN50 to DN200
3.5 bar.g pressure
differential @ 750oC
Wafer pattern to
suit BS, DIN and ANSI flange standards
or pneumatic actuation
4-20mA or 3-15
p.s.i (0.2-1.0 Bar.g) positional control
Dual valve Y
Low pressure drop
metal seated versions available