Actuators & Accessories

Series 51/53 Large Diameter Resilient Seated

Body Style

Series 5C - Wafer

Series 5D - Lug

Body

CI, DI, CS

Disc/Stem

316 SS

Duplex SS

Elastomer (EPDM, NBR) Lined

Halar® Coated

Seat

EPDM, White EPDM

Buna-N, White Buna-N

FKM, Silicone

Size Range

2" to 24“ (DN 50 to 600)

Pressure Rating

150 PSIG (PN 10)

Leakage Class

Class VI

Design Standard

API 609, BS EN 593

Testing Standard

API 598, BS EN 12266-1

    Features

  • ISO 5211 top plate for direct mounting of a wide range of actuators, handles, and gears
  • Heavy duty acetal bushing
  • Upper and lower bearings
  • One piece thin profile disc/stem in high strength design
  • Bi-directional U-cup stem seal
  • Heavy duty, two piece epoxy coated body with extended neck and locating holes
  • Center-LOK® peroxide cured seat
  • Double molded O-rings provide upper and lower secondary seals