Knife Gate Valve

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Knife Gate Valve

Knife gate valve is a stainless steel gate valve equipped with a sharp cutting tool designed for handling viscous, heavy fluids, or other abrasive media. Its simple design and easy-to-operate valve arrangement make it an ideal choice for sewage treatment plants, cement factories, and mining facilities.

Applications

The knife gate valves can be used in various applications, including powder conveying pipeline systems, pipeline slurry transportation system, and sewage conveying systems.

Basic Information

Size Range: DN50-DN800

Temperature Range T: 0-100℃

Maximum Allowable Operating Pressure PN: 1.0-1.6Mpa

Pressure Rating: 1.5-2.4Mpa (Shell)
1.1-1.76Mpa (Seal)

Applicable Media: Powder, slurry, sewage and so on.

Materials

No.	Part	Materials	No.	Part	Material
1	Valve Body	Stainless Steel, Cast Steel	5	Valve Handwheel	WCB
2	Valve Disc	Stainless Steel	6	Bolts	45#, Stainless Steel
3	Valve Seat	FTFE, Fluoroelastomer, Stainless Steel, Carbon Steel	7	Gland	Stainless Steel, Cast Steel
4	Valve Stem	2Cr13	8	Packing	Graphite

Specifications

Size	L	ØD	ØD1	ØD2	H	n-Ød (PN10)	n-Ød (PN16)	D0
DN50	50	100	125	160/165	285	4-Ø18	4-Ø18	180
DN65	50	120	145	180/185	298	4-Ø18	4-Ø18	200
DN80	50	135	160	195/200	315	8-Ø18	8-Ø18	220
DN100	50	155	180	215/220	365	8-Ø18	8-Ø18	240
DN125	58	185	210	245/250	400	8-Ø18	8-Ø18	280
DN150	58	210	240	280/285	475	8-Ø22	8-Ø22	300
DN200	70	265	295	335/340	540	8-Ø22	12-Ø22	320
DN250	70	320	350/355	390/405	630	12-Ø22	12-Ø26	360
DN300	76	368/375	400/410	440/460	780	12-Ø22	12-Ø26	400
DN350	90	428/436	460/470	500/520	885	16-Ø22	16-Ø26	450
DN400	100	482/485	515/525	565/580	990	16-Ø26	16-Ø30	500
DN450	100	532/548	565/585	615/640	1100	20-Ø26	20-Ø30	550
DN500	115	585/608	620/650	670/715	1200	20-Ø26	20-Ø33	600
DN600	115	685/718	725/770	780/840	1450	20-Ø30	20-Ø36	700
DN700	160	788/800	840/840	895/910	1700	24-Ø30	24-Ø36	700
DN800	190	899/905	950/950	1010/1025	2000	24-Ø33	24-Ø39	700

Certifications

Item	Standard
Design & Manufacture	GB12238-89
Face to Face Dimension	GB12221-2005
Flange Connection	GB9113-2000
Valve Test	JB/T 9092-1999
Valve Supply Requirements	GB12220-89

Expertise and Superior Casting

With our dedicated workshop and exceptional mold casting capabilities, we have the confidence to fulfill your requirements for knife gate valves.

Corrosion Resistance and Durability

We meticulously choose materials and employ contemporary designs that render our knife gate valves exceptionally resistant to the corrosive effects of acids, particularly when dealing with viscous substances.

Long-Lasting Cutting Blades

Our steel blades, designed for cutting solids or heavy materials, are specially crafted to retain their sharp edges over extended periods of use.