1-833-DELVAL1

Series 50/52 Resilient Seated

Body Style

Series 50 – Wafer

Series 52 – Lug 

Series 5A – Wafer (Keystone stem size)

Series 5B – Lug (Keystone stem size)

Body

CI, DI, CS

Disc

Nylon coated Ductile Iron

Aroxy Ductile Iron

CF8M

Stem

410 SS, 17-4 PH

Seat

EPDM, White EPDM

Buna-N, White Buna-N

FKM, Silicone

Size Range

2" to 24“ (DN 50 to 600)

Pressure Rating

2" to 12" – Class 125, 175 PSIG (PN 12)

14” to 24” – 150 psi (PN 10)

Optional: 2” to 24” – 230 (PN 16) 

Leakage Class

Class VI

Design Standard

API 609, BS EN 593

Testing Standard

API 598, BS EN 12266-1

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Features

  • Top plate double drilled to ISO 5211 and standard secondary bolt circle dimensions designed for directing mounting of a wide range of actuators, handles, and gears
  • Heavy duty acetal bushing
  • High strength disc with hand polished disc edge and hubs
  • One piece stem with internal Double D drive eliminates disc pins and screws
  • Blowout proof stem retention offers easy assembly and disassembly
  • Bi-directional U-cup stem seal
  • Heavy duty, one piece epoxy coated body with extended neck for 2” of insulation and locating holes
  • Center-LOK® peroxide cured seat
  • Double molded O-rings provide upper and lower secondary seals