Unidirectional Knife Gate Valve

Unidirectional Knife Gate Valve

Body: Carbon Steel, Ductile Iron, SS316

Knife: SS304, SS316

Disc: SS304, SS316L

Wedge: SS304, SS316, SS316L

Packing: PTFE

Seal Ring: Polyurethane, EPDM, NBR, VITON

Yoke: SS304, SS316

Packing Gland: CF8, WCB

Nominal Size: DN50 to DN450

Nominal Pressure: Class150 to Class30, PN10

End Type: Wafer Type, Lug Type

Operation: Handwheel, Electric Actuated, Pneumatic Actuated

Design and Manufacture Standard: MSS SP-81

Face to Face Dimension: MSS SP-81

Flanged End Dimension: DIN, JIS

Inspection and Test: API 598

Dimensions

PN10

DN	L	D	D1	D2	DO	N-Th	d	H1
50	48	165	125	99	180	4-M16	Φ18	260
65	48	185	145	118	200	4-M16	Φ18	292
80	51	200	160	132	240	8-M16	Φ18	320
100	51	220	180	156	260	8-M16	Φ18	358
125	57	250	210	184	280	8-M16	Φ18	395
150	57	285	240	211	280	8-M20	Φ23	450
175	57	305	265	237	280	12-M20	Φ23	504
200	70	340	295	266	300	8-M20	Φ23	532
250	70	395	350	319	320	12-M20	Φ23	670
300	76	445	400	370	350	12-M20	Φ23	758
350	76	505	460	429	400	16-M20	Φ23	857
400	89	565	515	480	450	16-M24	Φ27	946
450	89	615	565	530	500	20-M24	Φ27	1023

150LB

DN	L	D	D1	D2	DO	N-Th	d	H1
2"	48	152	121	92	180	4-5/8"	Φ19	260
2-1/2"	48	178	140	105	200	4-5/8"	Φ19	292
3"	51	191	153	127	200	4-5/8"	Φ19	320
4"	51	229	191	157	240	8-5/8"	Φ19	358
5"	57	254	216	186	260	8-3/4"	Φ22	395
6"	57	279	242	216	280	8-3/4"	Φ22	450
8"	70	343	299	270	300	8-3/4"	Φ22	532
10"	70	406	362	324	320	12-7/8"	Φ25	670
12"	76	483	432	381	350	12-7/8"	Φ25	758
14"	76	533	476	413	400	12-1"	Φ29	857
16"	89	597	540	470	450	16-1"	Φ29	946
18"	89	635	578	533	500	16-11/8"	Φ32	1023