Flow Way Direction, Slot on top stem indicates positive disc position
Blow-out Proof Shaft, 17-4Ph stainless steel stem provides excellent strength, alignment and rigid support to disc.
Easy-Access Parking Gland, Provides means for packing adjustment even when “Direct-mount” actuation and insulation are utilized.
Top Stem Bearings, Top RPTFE/SS self-lubricating bearings provide excellent stem support and shaft alignment.
O-Ring, Extra Protection for leakage through body and seat retainer
Soft Seat, One-piece solid RPTFE static and dynamic seat design seals at both high and low pressures.
Wedge Pins, Provide positive mechanical attachment of disc to shaft.
Bottom Stem Bearings, Bottom RPTFE/SS self-lubricating bearings provide excellent stem support and shaft alignment.
Bottom Packing, The lower shaft utilizes seal in the body to prevent external leakage and simplify valve maintenance.
Shaft Retainer, Provides positive stem retention.
Mounting Top Flange, Meets ISO5211 pattern providing low cost “Near Direct Mount” actuation capability.
Extra Long Neck, Provides path for heat dissipation and allows space for insulation.
Stem Seal, Self-lubricating PTFE V-rings prevent leakage to atmosphere.
O-Ring, Serves as first line of defense for stem leakage
Retainer Cover, Maintains seat integrity prior to installation. Interchangeable with any seat option. Standard surface finish is 125 to 200 AARH. Compatible with both standard and spiralwound gasket designs.
Retainer Fasteners, SS set screws provide ease of seat replacement.
Over Travel Stop, Integrally cased into body, prevents disc from rotating in wrong quadrant and damaging seat
Anti-Static Grounding, provided by stem ball at the very end of the stem shaft.
Bottom Flange Cover, Equalizes pressure under shaft, eliminating “piston” effect at higher pressure