Wafer Knife Gate Valve

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Wafer Knife Gate Valve

Material: stainless steel, carbon steel, or ductile iron

Size Range: 2″ to 24″ (DN50-DN600)

Connection Options:Wafer type (fits between two flanges)
Lug type for additional stability in certain applications

Working Pressure:Commonly rated from 10 to 16 bar (150 to 232 PSI)

Working Temperature:-20°C to 200°C

Sealing Options:Metal-to-Metal, Soft seal

Manufacturing Method:Cast, Forged, Machined

Applicable Medium:Water, Oil, Gas, Steam, Chemical Fluids

Manufacturing Standard:API 600, API 602, ASME B16.34

Product Overview

The Wafer Knife Gate Valve is a compact and cost-effective valve designed for controlling flow in systems handling slurries, viscous fluids, and solids. Its knife-like gate is engineered to cut through thick media, providing a reliable shut-off function with minimal pressure drop. The wafer design allows for easy installation between flanges, making it an ideal choice for applications where space and weight are considerations.

Product Features

Compact and Lightweight: The wafer-style body reduces weight and saves space, making installation and maintenance easier.

Knife-Edge Gate: Designed to slice through viscous and solid-laden media, ensuring reliable operation even in challenging conditions.

Flexible Sealing Options: Available with soft and metal-to-metal sealing for compatibility with different media and temperatures.

Corrosion-Resistant Material Options: Constructed from various materials to withstand corrosive environments.

Cost-Effective: Simple design reduces production costs, providing a durable and affordable solution.

Specification Parameters

Structural Length Standard:
ASME B16.10

Connection Forms Standards:
Flange connection standards include ASME B16.5 or EN1092 for compatibility with other pipeline components.

Available Sizes (Caliber):
2″, 3″, 4″, 6″, 8″, 10″, 12″, 14″, 16″, 18″, 20″, 24″

Pressure-Temperature Rating:
Class 150, 300, 600, 900, 1500 as per API 600 and ASME B16.34

Pressure Range:
Up to Class 150 (or 10-16 bar, depending on design and size).

Temperature Range:
-20°C to 200°C depending on material and sealing options

The main shape and connection dimensions

Nominal diameter	The main dimensions and connection dimensions
Nominal diameter	L	D	D1	D2	b	Z-d	H	D0
PZ73X/H-10C
50	50	160	125	100	16-3	4-Φ18	285	180
65	50	180	145	120	18-3	4-Φ18	298	180
80	50	195	160	135	20-3	8-Φ18	315	220
100	50	215	180	155	20-3	8-Φ18	365	220
125	50	245	210	185	22-3	8-Φ18	400	230
150	60	280	240	210	24-3	8-Φ23	475	280
200	60	335	295	265	26-3	12-Φ23	540	360
250	70	405	355	320	30-3	12-Φ25	630	360
300	80	460	410	375	30-3	12-Φ25	780	400
350	90	520	470	435	34-4	16-Φ25	885	400
400	100	580	525	485	36-4	16-Φ30	990	400
450	120	640	585	545	40-4	20-Φ30	1100	530
500	130	705	650	608	44-4	20-Φ34	1200	530
600	140	840	770	718	48-5	20-Φ36	1450	600
700	165	910	840	788	50-5	24-Φ41	1700	600
800	190	1020	950	898	52-5	24-Φ41	2000	680
900	203	1120	1050	998	54-5	28-Φ41	2300	680
PZ73X/H-16C
50	50	160	125	100	20-3	4-Φ18	285	180
65	50	180	145	120	22-3	8-Φ18	298	180
80	50	195	160	135	22-3	8-Φ18	315	220
100	50	230	190	160	24-3	8-Φ23	365	220
125	50	270	220	188	28-3	8-Φ25	400	230
150	60	300	250	218	30-3	8-Φ25	475	280
200	60	360	310	278	34-3	12-Φ25	540	360
250	70	425	370	332	36-3	12-Φ30	630	360
300	80	485	430	390	40-4	16-Φ30	780	400
350	90	550	490	448	44-4	16-Φ34	885	400
400	100	610	550	505	48-4	16-Φ34	990	400
450	120	640	585	545	40-4	20-Φ30	1100	530
500	130	705	650	608	44-4	20-Φ34	1200	530
600	140	840	770	718	48-5	20-Φ36	1450	600
700	165	910	840	788	50-5	24-Φ41	1700	600
800	190	1020	950	898	52-5	24-Φ41	2000	680
900	203	1120	1050	998	54-5	28-Φ41	2300	680

Specification Applications

Industries

Mining and Mineral Processing: Suitable for handling slurries, tailings, and abrasive media.
Pulp and Paper: Manages thick pulp flows in paper production.
Wastewater Treatment: Controls sludge and sewage flows in water treatment facilities.
Chemical Processing: Used for handling various chemicals and slurries in processing plants.
Food and Beverage: Suitable for processing thick or viscous media in food production.

Valve Actuation

Process Optimization

Precision Engineering

Pipeline Solutions

Industrial Valves

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