Figure 76 Knife Gate Valve

Solid one piece cast body in corrosion resistant stainless steel.

Compact wafer configuration to Tappi standard face to face.

Gate and seat are machined and fitted to provide shut off in one direction.

Bonnetless, outside screw and yoke, non-rising handwheel, rising stem.

Available in sizes from 2" to 24" diameter.

150 PSI working pressure.

Flanges match ANSI B16.5-150 lbs. standard with all tapped holes, serrated gasket faces.

Designed to handle dense mixtures of stock and slurries. The shearing action of the knife gate cuts through solids and cleans the seat as it closes.

Smooth flow--non-clogging FULL PORT design.

Meets Tappi standard TIS 405-8 for stainless steel bonnetless, flanged, wafer knife gate valves.

Factory installed V-seat inserts available for metering or throttling service.

SPECIFICATIONS

MATERIALS OF CONSTRUCTION
1	Gate	SS
2	Body	SS
3	Seat	SS
4	Bolts	SS
5	Packing	TFE impregnated
6	Gland	SS
7	Stem	SS
8	Yoke	SS
9	Stem Nut	Brass
10	Handwheel	Ductile Iron

DIMENSIONS (inches) and WEIGHTS
SIZE		2	3	4	6	8	10	12	14	16	18	20	24
FACE TO FACE	A	1 7/8	2	2	2 1/4	2 3/4	2 3/4	3	3	3 1/2	3 1/2	4 1/2	4 1/2
FLANGE DIAMETER	B	6	7 1/2	9	11	13 1/2	16	19	21	23 1/2	25	27 1/2	32
BOLT CIRCLE	BC	4 3/4	6	7 1/2	9 1/2	11 3/4	14 1/4	17	18 3/4	21 1/4	22 3/4	25	29 1/2
INSIDE DIAMETER	ID	2	3	4	6	8	10	12	13 5/8	15 1/2	17 1/2	19 1/2	23 3/8
NUMBER OF HOLES		4	4	8	8	8	12	12	12	16	16	20	20
HOLE SIZE, TAP NC		5/8	5/8	5/8	3/4	3/4	7/8	7/8	1	1	1 1/8	1 1/8	1 1/4
CENTER TO TOP--CLOSED	C	12 5/8	14 1/2	16 1/2	19 3/4	24 1/4	29 1/2	33 1/8	37 1/2	42 1/2	47	51 3/4	58 1/4
CENTER TO TOP--OPEN	D	14 7/8	17 3/4	20 5/8	26	32 3/4	39 5/8	45 1/2	51 1/8	58 3/8	64 1/2	711/2	82 1/4
HANDWHEEL DIAMETER	E	8	8	8	12	12	15	15	15	20	20	20	30
YOKE WIDTH	F	5	5	6	6 5/8	6 5/8	7 1/4	7 1/2	8 1/4	8 1/4	8 3/4	9 1/2	10 1/2
WEIGHT--LBS		20	29	38	52	85	120	160	212	300	350	480	600

Available in T304, T316 and T317 stainless steel. Other metals also available.

Normally supplied with handwheel for manual operation but can be modified for lever, chain, bevel gear, electric, hydraulic or pneumatic operation.
See Valve Operators for details.