Soft Sealing

150Lb: 2"〜64"

300Lb: 2"〜48"

600Lb: 3"〜36"

900Lb: 4,〜24"

What Is High Performance

-Bi-directional sealing zero leakage

Soft Seal:

Full aperture air pressure zero leakage Class VI

Full aperture water pressure zero leakage Class VI

Metal Seal:

0" air pressure zero leakage Class VI

Full aperture water pressure zero leakage Class VI

-Renewable seat

The body seat can be easily replaced in the field just use simple tools.

■Low Torque

The torque is about 50 percent lower than the bidrectional seal triple offset butterfly valve.

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Seat non-compressed as disc approaches.

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Disc in close position, with no line pressure.

Disc in close position, line pressure applied from upstream.

Disc in close position, line pressure applied from downstream.

Assembly Instructions

SQUARE

Square valve-to-operator connection applied t o ISO5211 pneumatic actuators and electic a ctuactors 2"-28" default connection as square, key type is available. 28"-60" default connecti on is KEY type.

GRAND FLANGE

Applies load against packing gland to prevent external leakage. Fully adjustable.

PACKING

Soft Seat: Chevron design TFE prevents exte rnal leakage out valve neck to full ASME hydr ostatic shell test pressures (150 percent of C.W.P.) Metal Seat: Common materials are TFE for u p to 232 heal and Graphite for up to 482 degree .

Fire-safe: Common material is graphite.

WEDGE RING

Stainless steel band wedged between valve b ody and retainer ring by set screws to lock se at and retainer ring in position on valve.

WEDGE PINS

Provide positive mechanical attachment of dis cto shaft.

OVERTRAVEL STOP

Prevents disc from rotating into the wrong qua drant

SET SCREWS

Cone point screws force wedge ring outward to lock seat retainer in position on the 30?valve size.

RETAINER RING

Retains seat in valve. Standard surface finish is 125 to 200 AARH and is compatible with bo th standard gaskets and spiral wound gasket designs. Outside diameter is recessed within gasket sealing surface to prevent external lea kage.

BLOW OUT PROOF SHAFT

'Solid shaft provides alignment and rigid supp ort for disc. 17-4PH and 316 materials are av ailable.

PACKING GLAND

-Separate part from gland flange, preventing u neven load distribution against packing.

BEARINGS

Soft Seat: Both above and below the disc, be -arings are of composite design: PTFE bonded to epoxy-glass filament wound ring.

Used to align shaft, with high capacity, low we ar, and low friction coefficient.Metal Seat: Both above and below the disc, b earings are of composite design: 316 bonded to Dupont PTFE wound ring, used to align sh aft, with high capacity, low wear, and low fricti on coefficient.Fire-safe: Both above and below the disc, be arings are of composite design: 316 bonded t o Dupont PTFE wound ring. Used to align sha ft, with high capacity, low wear, and low frictio n coefficient

BODY

ASME B16.34 design in either wafer or lug co nfiguration.

DISC

Soft Seat: 360 degree uninterrupted spherical edge for sealing. Profile is designed for maximum fl ow and equal percentage control.

SEAT

Soft Seat: Patented bi-directional seat with e ■ncapsulated elastomeric o-ring core for resilie ncy. Common seat materials include TFE, RT FE and UHMWPE.

Metal Seat: Patented metal seat with metal b ack-up ring.

Fire-safe: Patented bi-directional soft seat de sign for zero-leakage in normal operation and a metal-to-metal seal after fire, meeting orexc eeding industry jfc-safe?specifications.

Tipbv Seal Structure

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High Performance Butterfly Valve Series 5000