Impactor handwheels
Globe and stop check valves require higher closing torques than gate valves with the same seat diameter and pressure class. The most economical mechanism for tight shutoff is the impactor handwheel. Two lugs cast under the wheel strike simultaneous blows and give 3–10 times the closing force of standard handwheels. Impactor handwheels are supplied at manufacturer’s option unless specified by customer.
Applicable Standard
Design Features
Design Standard
BS 1873, ASME B16.34, DIN3356
Structure
Bolted bonnet ,threaded back sea, rising stem and handwheel, rotary disc
Face to Face
ASME B16.10, EN 558, DIN 3202
End Flange
ASME B16.5, DIN 2501
BW Ends
ASME B16.25, DIN3239
Inspection and Test
API 598, DIN3230
Size Range | 2"~24"(DN50~DN600 | Pressure Rating | ASME CLASS 150~1500(PN16~PN250) |
Body Materials | Carbon Steel, Stainless Steel, Alloy Steel, etc. | Ball Materials | A105, 304SS, 316SS, etc. |
Stem Materials | 410SS, 304SS&17-4PH,ect. | Seat Materials | Overlay 13Cr,Stellite 6.etc. |
End Connection | RF, BW, RTJ | Operation | Hand wheel, Gear, Motor, Pneumatic, Hydraulic |