Knife Gate Valve

Class 150
Size: NPS 2″~ 64″, 50 ~ 1,600mm
Design standards: ANSI B16.34, MSS SP-81
Inspection and test standards: API 598
Face-to-face: MSS SP-81
Ends Connection: ANSI B16.5, JB 79
Material: WCB, CF8, CF8M, CF3, CF3M

Test Pressure to API 598

Class	Shell Test (Hydrostatic)	Seat Test (Hydrostatic)
150	450psi	315psi

Standard Material Specifications

Body/bonnet	Disc	Stem	Seat
SS/CS/CI	SS	SS	Carbide Alloy

Main Connection Dimensions

Class	NPS	L	D	D1	D2	H	N-M	D0
150Lb	2″	48	152	120.5	92	398	4-M16	180
	2 1/2″	48	178	139.5	105	415	4-M16	180
	3″	51	190	152.5	127	445	4-M16	220
	4″	51	229	190.5	157	497	8-M16	220
	5″	57	254	216	186	575	8-M20	230
	6″	57	279	241.5	216	635	8-M20	280
	8″	70	343	298.5	270	775	8-M20	360
	10″	70	406	362	324	940	12-M22	360
	12″	76	483	432	381	1030	12-M22	400
	14″	76	533	476	413	1186	16-M27	400
	16″	89	597	540	470	1365	16-M27	400
	18″	89	635	578	533	1620	20-M30	530
	20″	114	699	635	584	1720	20-M30	530
	24″	114	813	749.5	692	1860	20-M33	600
	30″	117	985	914	857	2250	28-M33	600
	36″	117	1170	1086	1022	2800	32-M39	800