Circular Knife Gate Valve‌‌

Waits Valve's Circular Knife Gate Valve‌‌ is designed for industrial piping systems, and its unique round gate provides reliable shutoff and smooth flow control. It is widely used in various industries, especially in areas that require high sealing and low maintenance.

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Product Description

Waits Valve high quality Circular Knife Gate Valve‌‌ is suitable for recycling applications, with a fully round flow path without grooves or depressions to prevent media accumulation and clogging, such as the garbage collector or grit collector of a pulper, high density cleaner (HDC) or as a silo outlet for solid materials. It is particularly suitable for fluid control applications involving particles, fibers or slurries. Some models are equipped with a wear-resistant tapered edge or scraper at the inlet to better handle highly abrasive media. The two-piece valve body has a round inlet and a square outlet (larger than the inlet) to effectively prevent media clogging.

Implementation Standards-Circular Knife Gate Valve‌‌
Design Standards	API600, DIN3352, EN1074
Flange Standard	ASME B16.5, ASME B16.47-A/B, EN1092-1/2
Connection	RF, FF, RTJ
Test Acceptance	API 598 EN12266
Structure Length	API6D/ASME B16.10/EN558
Pressure and Temperature Ratings	ASME B16.34
Fire Test	BS 6755‌
Low Leakage Standard	API 622
Anti-Clogging Design	MSS-SP-81‌
Application-Circular Knife Gate Valve‌‌
Size	‌DN50~DN1000
Pressure Range	PN1.0~1.6MPa
Temperature Range	-20℃425℃‌
Application	Ash discharge, industrial wastewater treatment, papermaking and slurry transportation, high temperature slag discharge system
Drive Mode	Support manual, electric, pneumatic, hydraulic, etc.
Valve Body/Valve Cover	Forgings: A105, A182 F304, F304L, F316, F316L, F51, F53, B148, A350 LF2, LF3, LF5, Castings: DI A216 WCB, CF3, CF8, CF3M, CF8M, 4A, 5A, C95800, LCB, LCC, LC2
Gate	Forgings: A105, A182 F304, F304L, F316, F316L, F51, F53, B148, A350 LF2, LF3, LF5, Monel, Castings: A216 WCB, CF3, CF8, CF3M, CF8M, 4A, 5A, C95800, LCB, LCC, LC2
Sealing Surface	RUBBER, PTFE, stainless steel seal, carbide
Valve Stem	A182-F6a-F304-F316-F51 17-4PH/XM-19 ...
Filler	Flexible graphite, graphite asbestos packing, polytetrafluoroethylene...

Features:

1. Valve Body:

The Circular Knife Gate Valve‌ features a claw design at the bottom of the valve port to hold the gate, rather than a groove, eliminating potential clogging when the valve is closed.

2. Gate:

Gate thickness can be increased to withstand higher pressures.

Both sides of the gate surface are polished to reduce clogging.

3. Seat:

The seat retainer covers the side of the seat to prevent the seat from being washed by direct water flow.

The preload seat is adjustable to meet different sealing levels and compensate for normal seat wear.

Circular Knife Gate Valve