R. Wales and Son, Products

Knife Gate Valves C/W Urethane Seat and Wear Area

Product Description
• High wear resistant cast urethane seat and wear area for excellent performance in slurry applications.
• Fabricated steel body construction for durability and economy.
• Gate is smooth ground 304 stainless steel for low friction and corrosion resistance during operation.

Special Feature
This design has the benefit of a bonded-in urethane seat which will not become loose during operation. This feature has the added economic benefit of allowing for the reconditioning and recasting of the urethane seat for a fraction of the cost of a new valve.

General Information
Valve assemblies are supplied with flax packing, adjustable gland, actuator stand, and actuating device. The most economical and durable actuator is a hydraulic cylinder. Valves are also available with pneumatic cylinders and hand actuators.

Line Size	Line Pressure	Face to Face	Gate Thickness	Flange Sizes	Bolting Qt’y and Size	Pneumatic Rod Dia..	Hydraulic Rod Dia..	Pneu. Act. Cyl. Dia..	Hyd. Act. Cyl. Dia.	Hyd. Act. Working Pressure

6"	150 psi	2.25”	.375”	6” – 150#	8 – 3/4” – UNC	1.00”	1.000”	6"	2.0”	2000 psi
8"	150 psi	3.00”	.50”	8” – 150#	8 – 3/4” – UNC	1.00”	1.000”	8"	2.0”	2000 psi
10"	125 psi	3.00”	.50”	10” – 150#	12 – 7/8” – UNC	1.375”	1.375”	12"	3.0”	2000 psi
12"	125 psi	3.00”	.50”	12” – 150#	12 – 7/8” – UNC	1.375”	1.375”	12"	3.0”	2000 psi
14"	100 psi	3.13”	.50”	14” – 150#	12 – 1” – UNC	1.375”	1.375”	12"	3.0”	2000 psi
16"	100 psi	3.50”	.75”	16” – 150#	16 – 1” – UNC	1.375”	2.000”	14"	5.0”	3000 psi
18"	100 psi	3.50”	.75”	18” – 150#	16 – 1 1/8” – UNC	1.75”	2.000”	16"	5.0”	3000 psi
20"	100 psi	4.50”	1.00”	20” – 150#	20 – 1 1/8” – UNC	1.75”	2.000”	16"	5.0”	3000 psi
24"	75 psi	4.50”	1.00”	24” – 150#	20 – 1 1/4” – UNC	2.0”	2.000”	18"	5.0”	3000 psi
30"	75 psi	5.00”	1.00”	30” – 150#	28 – 1 1/4” – UNC	2.50”	2.500”	20"	8.0”	3000 psi
36"	75 psi	5.50”	1.50”	36” – 150#	32 – 1 1/2” – UNC	2.501”	2.500”	24"	8.0”	3000 psi

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