DELVAL
SERIES 50/52 RESILIENT SEATED
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✔ 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
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➤ Series 50 Body Style → Wafer
➤ Series 52 Body Style → Lug
➤ 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)
➤ Design Standard → API 609, BS EN 593
➤ Testing Standard → API 598, BS EN 12266-1