Knife Gates

Knife 57

Davis Valve has the knife gate valve you need. With more than 1000 knife gate valves in stock and multiple models to choose from, Davis Valve is ready to help you.

Our knife gate valves are available out of stock with hand wheels, gears, chain wheels, as well as air cylinders. Our valves are stocked in CF8 (304 SS), CF8M (316 SS), CG8M (317 SS), WCB steel, and Ductile iron.  We stock knife gates from 2" to 36".

Every Davis knife gate has a solid one piece cast body with integrally cast gate jams and guides. They are full port and designed with blow out proof packing glands and nylock locking nuts.

Our valves are designed and tested to Tappi TIS 405-8 and MSS-SP81 standards. Our full lug pattern flanges conform to ASME B16.5.

#60: Our model number 60 is a unidirectional metal seated knife gate with a heavy precision machined beveled gate that cuts through solids and slurries and cleans the seat while it closes. Metal seated knife gates are not designed to be drip tight but are ideal for rugged applications involving pulp, slurries, and solids.  The body is available in 304 SS, 316 SS, and 317 SS fully lug style.

#70: Our model number 70 is a bi-directional EPDM resilient seated knife gate designed to be drip tight in liquid applications.  The body is available in 304 SS and 316 SS fully lug style.

#57:  Our model 57 is a unidirectional soft seated knife gate designed to be drip tight in liquid applications.  The body is ductile iron semi lug design.  Seats are available in EPDM, BUNA, Viton, and Teflon to suit a variety of applications.  The seat can be easily replaced in the field.

#59:  Our model 59 is a unidirectional soft seated knife gate designed to be drip tight in liquid applications. The body is available in 304 SS, 316 SS, and Ductile iron fully lug style.  Seats are available in EPDM, BUNA, Viton, and Teflon to suit a variety of applications. The seat can be easily replaced in the field.