Butterfly valves are widely used in chemical industry, petrochemical industry, marine development, smelting, etc., as regulating and closing equipment.
The seat and disc of our butterfly valve employ the most advanced technology to complete the structural design. At the very moment when the disc opens and closes, the disc produces a cam action, which can pull the disc with less effort, greatly reduces the wear and deformation of the valve seat, and increases the service life of the valve.
Features Overview:
- Grooved-In Retaining Plate
- ISO 5211 Mounting Pad for Direct Mounting
- 10 Position Indicator Plate
- Secured Graphite Packing / Graphite Coated Meshed SS316 Bushing
- Unique and Simple Seat Design Without Encapsulated Elastomer or Metal Hoops Inside
- One-Piece Body Construction Without Any Potential Leakage Through Bottom Area
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Features & Benefits
- Tight shut-off design.
- One-piece body materials are either cast steel or stainless steel for excellent corrosion resistance.
- High strength one-piece stem in A564 Gr. 630/PH 17-4 materials.
- ISO 5211 mounting pad with square shaft 2"-12". Key Type connection 14"-24" permits direct mount actuation for both manual (lever & gear), pneumatic, and electric actuators.
- Double off-set configuration with conical angled disc design. Maximize flow and minimize resistance providing high Cv.
- Seat available in either Soft (PTFE/RTFE) NBR, EPDM, VITON or Metal (A240 Tp 304/316), Fire-Safe Seat. Both Soft seats and Metal seats are interchangeable.
- Gland Flange preventing uneven load distribution against packing.
- Internal travel stop design to prevent over travel of the disc, minimizing possible seat damage.
- Retainer ring surface finish is 125 to 200 AARH and is compatible with both standard gasket and spiral wound gasket designs. outside diameter is recessed within gasket sealing surface to prevent external leakage.
- Heavy duty handle and 10-position notch plates allow for positioning the valve disc to precise angle stops.
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