Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

PZ673 Pneumatic Wafer Knife Gate Valve
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Phone：+86（577）6730 7899
Mobile：+86 195 1816 9569
Fax：+86（577）6738 7099
Email：Lucas@kaiweixi.com
Address：No. 1, Linxia Road, Oubei Street, Yongjia County, Wenzhou City, Zhejiang Province,china
Website：https://www.kaiweixi.com

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PZ673 Pneumatic Wafer Knife Gate Valve

Model：PZ673H-10C/PZ673H-16C/PZ673X-6C/PZ673X-10C/PZ673F-6C/PZ673F-10C/PZ673F-16C/PZ673H-10P/PZ673H-16P/PZ673X-6P/PZ673X-10P/PZ673F-6P/PZ673F-10P/PZ673F-16P
Specification：DN50~1200
Temperature：-40-450℃
Medium：Slurry, pulp, sewage, and applications requiring rapid shut-off

Pressure：PN0.6～1.6MPa
Connection method：Wafer
Driving method：Pneumatic
Material：Carbon steel, stainless steel

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PZ673 Pneumatic Wafer Knife Gate ValveOverview

PZ673 Pneumatic Wafer Knife Gate Valve is an industrial automation execution unit combining a pneumatic actuator with an ultra-thin knife gate valve body. Utilizing compressed air as the power source, the pneumatic cylinder drives the piston to move the gate plate in a linear reciprocating motion, thereby opening or closing the pipeline. The core design features a gate plate with a sharp knife-edge at the bottom, which effectively shears through fibers, paper pulp, wood pulp, and impurities at the moment of closing to prevent jamming. The letters H, X, and F represent metal hard seal, rubber soft seal, and fluoroplastic seal, respectively, to meet various temperature, pressure, and corrosive conditions. Known for its short face-to-face dimension, light weight, and low flow resistance, this valve is widely used in paper making, mining, coal washing, chemicals, and sewage treatment systems.

Product Image of PZ673 Pneumatic Wafer Knife Gate Valve

PZ673 Pneumatic Wafer Knife Gate ValveCharacteristic

1. Ultra-short structure saves space:The wafer-style thin design ensures overall dimensions and weight are significantly lower than traditional gate valves. This saves installation space and reduces mechanical loads on the pipeline system, lowering support costs.
2.Knife-edge gate for powerful shearing:The bottom of the gate is precision-machined into a wedge-shaped edge. It provides a strong shearing effect during closing, easily cutting through impurities and fibers in viscous media to eliminate the risk of sticking or incomplete closure.
3.Full-bore design and low resistance:When fully open, the flow area matches the pipe diameter exactly, resulting in an extremely low resistance coefficient. This structure prevents media deposition and significantly reduces pumping energy consumption.
4.Powerful and stable pneumatic drive:Equipped with high-performance pneumatic cylinders, providing large output thrust and rapid response. It can be configured with solenoid valves and limit switches for remote control and supports fail-safe pre-setting.
5.Diverse sealing configurations:Available in H (metal seat for heat/wear resistance), X (rubber for tight seal), and F (PTFE for anti-corrosion) materials. The scientific seat design ensures reliable performance in both pressure directions.
6.Durable internal materials:Body and internals are available in cast steel, stainless steel, or wear-resistant alloys. The gate surface is typically hard-chrome plated or nitrided to enhance hardness and erosion resistance for long-term stability.
7.Modular design for easy service:The simple structure features minimal wearing parts. Actuator-to-body connections are standardized, allowing for online inspection and replacement of packing and seals without removing the valve from the line.
8.Intrinsic safety and protection:Driven by compressed air, it eliminates spark risks, providing natural safety for hazardous zones such as powder-dense, flammable, or explosive industrial environments.

PZ673 Pneumatic Wafer Knife Gate Valvestructure principle

Structural Drawing of PZ673 Pneumatic Wafer Knife Gate Valve

List of Component Names and Materials

Part Name	Material Name	Material Grade/Mark
Round Nut	High-quality Carbon Steel	25
Handwheel	Grey Cast Iron	HT200
Bearing Gland	High-quality Carbon Steel	35
Stem Nut	Aluminum Bronze / Aluminum Brass	ZCuAl9Mn2... / ZCuZn25Al6Fe3Mn3
Bearing	—	51110
Stem	Stainless Steel	304, 316, 2Cr13
Yoke / Bracket	Carbon Steel, Stainless Steel	WCB, CF8, etc.
Wedge / Disc	Stainless Steel	304, 316, 304L, 316L, 2Cr13
Bolt and Nut	High-quality Carbon Steel	35
Packing Gland	Carbon Steel	WCB
Packing	Flexible Graphite, PTFE Fiber, etc.	—
Valve Body	Carbon Steel, Stainless Steel	WCB, CF8, CF3, CF8M, CF3M, etc.

PZ673 Pneumatic Wafer Knife Gate Valvetechnology parameter

Performance Specification Sheet

Performance Specification Sheet
Nominal Pressure	0.6	1.0	1.6	MPa
Strength test pressure	0.9	1.5	2.4
Sealing test pressure	0.66	1.1	1.76
Applicable Temperature	-40-450			℃

PZ673 Pneumatic Wafer Knife Gate Valvestandard size

Standard requirements for external dimensions

1.Design & Manufacture： JB/T869l-1998 MSS SP-81

2.Flange Dimensions：GB/T9113．1-2000

3.Face-to-Face Dimensions：GB/T1-5188．2-94

Outline Drawing of PZ673 Pneumatic Wafer Knife Gate Valve

Outline dimension table（Unit：mm）

MPa	DN	L	D	D1	D2	H	N-M	A
1.0	50	43	160	125	100	330	4-M16	180
	65	46	180	145	120	360	4-M16	180
	80	46	195	160	135	390	4-M16	220
	100	52	215	180	155	440	8-M16	220
	125	56	245	210	185	510	8-M16	230
	150	56	280	240	210	600	8-M20	280
	200	60	335	295	285	700	8-M20	360
	250	68	390	350	320	840	12-M20	360
	300	78	440	400	368	980	12-M20	400
	350	78	500	460	428	1110	16-M20	400
	400	102	565	515	482	1250	16-M22	400
	450	114	615	565	532	1380	20-M22	530
	500	127	670	620	585	1530	20-M22	530
	600	154	780	725	685	1800	20-M27	600
	700	165	895	840	800	2150	24-M27	600
	800	190	1010	950	898	2420	24-M30	680
	900	203	1110	1050	1005	2680	28-M30	680
	1000	218	1220	1160	1115	3100	28-M30	700
	1200	254	1450	1380	1325	3450	32-M36	800
1.6	50	43	160	125	99	330	4-M16	180
	65	46	185	145	120	360	4-M16	180
	80	46	200	160	135	390	8-M16	220
	100	52	220	180	155	440	8-M16	220
	125	55	250	210	185	510	8-M16	230
	150	56	285	240	210	600	8-M20	280
	200	60	340	295	265	700	12-M20	360
	250	68	405	355	310	840	12-M22	360
	300	78	460	410	375	960	12-M22	400
	350	78	520	470	435	1110	16-M22	400
	400	102	580	525	485	1250	16-M27	400
	450	114	640	585	545	1380	20-M27	530
	500	127	715	650	600	1530	20-M30	530
	600	154	840	770	720	1800	20-M36	600
	700	165	910	840	788	2150	24-M36	600
	800	190	1025	950	898	2420	24-M36	680
	900	203	1125	1050	998	2680	28-M38	680
	1000	216	1255	1170	1110	3100	28-M42	700
	1200	254	1485	1390	1325	3450

Articles related to technology research and development

Dynamic balance electric control valve Patent

The utility model provides a dynamically balanced electric regulating valve, which includes a valve body, a valve cover, a valve rod, a valve core installed inside the valve body and connected to the valve rod, and an actuator installed on the valve cover and connected to the top end of the valve rod. The valve body is internally provided with a water inlet chamber, a valve cavity, and a water outlet chamber in order towards the direction of medium flow. The valve core is in the shape of a bucket with its opening facing downwards. The valve core is located inside the valve cavity and is used for connecting or cutting off between the water inlet chamber and the valve cavity. The top of the valve core is provided with a through port for medium circulation. Above the through port, there is a filter cover detachably connected to the valve core. The valve rod is provided with a step, and the outside of the step is covered with an elastic sleeve that fits it. The top of the filter cover is provided with a fixing hole that fits the elastic sleeve. This utility model can filter the medium, is simple to install, time-saving, labor-saving, and can reduce the medium pressure inside the valve body, extending the service life of the valve core.
1. A dynamic balance electric regulating valve, comprising a valve body, a valve cover, a valve rod, a valve core installed inside the valve body and connected to the valve rod, and an actuator installed on the valve cover and connected to the top end of the valve rod. Its characteristic lies in that the valve body is sequentially provided with an inlet chamber, a valve cavity, and an outlet chamber in the direction of medium flow. The valve core is in the shape of a bucket with an opening facing downwards. The valve core is located inside the valve cavity and is used for connecting or cutting off between the inlet chamber and the valve cavity. The top of the valve core is provided with a port for medium circulation. Above the port, there is a filter cover detachably connected to the valve core. The valve rod is provided with a step, and the outside of the step is covered with an elastic sleeve that fits it. The top of the filter cover is provided with a fixing hole that fits the elastic sleeve.
2. A dynamic balance electric regulating valve according to claim 1, characterized in that the bottom of the valve body is provided with a downward-opening groove, which is connected to the valve cavity through a through hole. A bottom cover connected to the valve body is arranged below the groove, and a pressure relief mechanism is arranged inside the groove. The pressure relief mechanism comprises a force-receiving member, a pressure plate connected to the force-receiving member, and a first spring arranged below the pressure plate and abutting against the bottom cover. The force-receiving member comprises a flow diversion block protruding from the through hole and a connecting rod connected to the flow diversion block, and the connecting rod passes through the pressure plate and is locked and fixed by a nut.
3. A dynamic balance electric regulating valve according to claim 2, characterized in that the top end of the pressure plate is pressed against the top wall of the groove, the bottom of the pressure plate is provided with a boss, and the top end of the first spring is sleeved on the boss.
4. A dynamic balance electric control valve according to claim 1, characterized in that the valve rod is arranged through the valve cover, a sealing cover threadedly connected to the valve cover is sleeved on the valve rod, a convex ring abutting against the valve cover is arranged on the outer circumferential wall of the sealing cover, a nut cover threadedly connected to the sealing cover is arranged at the connection between the sealing cover and the valve rod, an installation groove is arranged at the connection between the nut cover and the valve rod, a plurality of O-rings adapted to the valve rod are stacked in the installation groove, and a packing gland threadedly connected to the installation groove is arranged above the O-rings.
5. A dynamic balance electric control valve according to claim 4, characterized in that a second spring is arranged between the packing gland and the O-ring.
6. A dynamic balance electric control valve according to claim 5, characterized in that a sealing ring adapted to the valve rod is arranged inside the nut cover below the installation groove.
7. A dynamic balance electric control valve according to claim 6, characterized in that the bottom of the sealing cover is provided with a thrust ring that is threadedly connected to the sealing cover and abuts against the bottom end of the valve cover.
8. A dynamic balance electric regulating valve according to claim 1, characterized in that the top surface of the elastic sleeve is higher than the top surface of the filter cover.
9. A dynamic balance electric control valve according to claim 8, characterized in that the filter cover is connected to the valve core through threads.

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Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

PZ673 Pneumatic Wafer Knife Gate Valve

More Pneumatic Control Valve>>

More control valve>>

More valve>>

PZ673 Pneumatic Wafer Knife Gate Valve