Description
low load butterfly valve adopts the metal face seal design of central line structure. The metal seat surrounds the disc. This structure can reduce the seat leakage. Featured by simple structure, light weight, mature manufacturing technology and convenient maintenance, the butterfly valve is used for flow and pressure control in low pressure service conditions and is suitable for fluids of very high temperature. It is widely used in steel, building materials, petrochemical industry, power station and other industries.
Description
Body: Cast Iron, Ductile Iron, Stainless Steel,CF8,CF8M,CF3M
Disc: Stainless Steel CF3M,CF3,CF8M,Double StainlessSteel,2507,1.4529,310S
Stem: Stainless Steel
Seats: Stainless Steel
Size: 2″ – 120″ (25mm – 3000mm)
Flange accommodation: EN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN 10/ PN 16
JIS 5K/10K
Top flange:ISO5211
Temperature range: -40 °C to + 980 °C (depending on pressure, medium and material)
Body style: Flange
Applications: High temperature flue gas
Pneumatic Actuator
Output Torque 10Nm to 8000 Nm
Control: Double acting,Single acting normally closed, acting,Single normally open
Pneumatic accessories: Solenoid valve, limit switch box , filter, E/P positioner, hand wheel
All double acting and spring return units are suitable for both on/off and throttling applications. Actuators which can be actuated with other media such as hydraulic oil or water are also available as an option.
1, Two independently adjustable travel stop screws and a cam on the output shaft to permit precise bidirectional adjustment of movement in both the open and closed positions for quarter turn valves (+5° to -5° limit adjustment)
2, Integral porting
3, Standard units have anodized aluminum bodies with polyester coated end caps.
4, Special coatings and materials available for corrosive environments
5, NAMUR accessory compatible
