Figure 77 Knife Gate Valve

Solid one piece cast body in corrosion resistant stainless steel.

Compact wafer configuration to Tappi and MSS standard face to face.

Replaceable resilient seat.

DRIP TIGHT SHUT OFF.

Designed to handle dense mixtures of stock and slurries.

Variety of resilient seat material available.

Smooth flow--non-clogging FULL PORT design.

Positive SHUT OFF in BOTH DIRECTIONS.

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

Available in sizes from 2" to 24" diameter.

Meets Tappi standard TIS 405-8 and MSS SP-81 for stainless steel bonnetless, flanged, wafer knife gate valves.

150 PSI working pressure.

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

SPECIFICATIONS

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

SEAT MATERIALS AVAILABLE
1	Hycar
2	Viton A
3	Teflon

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	13 5/8	16	17 3/4	21 5/8	26 3/4	32 1/8	36 3/8	42	46 3/4	52 3/8	55 3/4	66 1/2
CENTER TO TOP--OPEN	D	16	19 3/4	21 5/8	27 3/4	34 3/4	42 3/4	48 5/8	55 1/4	63 1/8	70 1/2	76 1/4	85 3/4
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

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.