The Series RF Flexible Seated Centric Butterfly Valves are highly reliable valves designed for tight shutoff applications. Manufactured under international standards (MSS-SP-67, EN 593) each valve is tested for pressure retention, shutoff integrity and mechanical safety before dispatch.
Key Features:
- Blowout proof stem retention with stainless steel retainer and internal circlip for safe operation and easy assembly/disassembly
- Inner & outer O-ring stem seals provide enhanced sealing and force absorption
- XCL-R high strength polymer bearings on drive and nondrive stems reduce friction, eliminate side loading and extend service life
- Heavy duty one piece body with dual-layer zinc phosphate epoxy coating offers superior corrosion resistance, Common body design for wafer, lug and double flanged styles
- SureLok-5™ 5 point anchoring seat design with molded O-ring seals virtually eliminates seat movement, isolating the body and stem from process media
- Spherically machined disc edge reduces seat wear and optimizes flow allowing fail closed actuator installation without special precautions
- One piece stem with ISO Double D drive (up to 12") and round with keyed design (14"+) ensures universal compatibility
- Extended neck with ISO 5211 top plate allows insulation clearance and direct actuator mounting
- Every valve is precision serialized and leak tested to 110% of rated working pressure ensuring bubble tight performance
