Description
The GEMÜ 520 pneumatically operated 2/2-way globe valve has a low maintenance membrane actuator which can be controlled by inert gaseous media. The valve plug is fixed to the spindle in such a way as to allow flexing during closure in order to ensure tight shut off. The valve spindle is sealed by a self-adjusting gland packing providing low maintenance and reliable valve spindle sealing even after a long service life. The wiper ring fitted in front of the gland packing protects it against contamination and damage.
TECHNICAL SPECIFICATIONS
- Nominal Size: 65, 80, 100, 125, 150 mm
- Body Configuration: 2/2-way
- Connection: Flanges ANSI B 16.5 – class150 – face-to-face EN 558-1 series 1 / Flanges PN 16 face-to-face EN 558-1 series 1 / Flanges PN 40 face-to-face EN 558-1 series 1
- Valve Body Material: 1.4408 Cast stainless steelEN-GJL-250, GG 25 (Cast iron)GP 240 H GS-C 25 (Cast steel)
- Seat Seal: PTFESteel (Seat ring / plug)
- Control Function: Double acting (DA)Normally closed (NC)Normally open (NO)
- Actuator Size: Actuator Size 3/1Actuator Size 3/2Actuator Size 3/3Actuator Size 4/3Actuator Size 5Actuator Size 6Actuator Size 7Actuator Size 8
ADVANTAGES
- Good flow capability
- Broad range of operating temperatures and pressures
- Accessories: Stroke limiter / optical position indicator / manual override / pilot valve with manual override / electrical position indicators / electro-pneumatic positioner
