... handkes, gear box, electric actuator and pneumatic actuatorsb) Stem Round with key, square and double "D" for your selection.c) O ... need for flange gasket, the way of edge-boot seat with valve body makes field replacement simple and fast.Material of ... SteelSeat: NBR, EPDM, Heat Resistant EPDM, VITON,Pin: Stainless SteelBushing: PTFE, BronzeRing: NBR, EPDM, VITON DNSizeΦDΦD2ΦD1ΦdNHAF05406535.550843 ...