Metal Seated Ball Valve Torque Chart

Dn øp l l1 ør n x øs øt h m iso 5211 b c i j torque kv 15 15 11553 65 4x1495 110 164f05 11 2 5 7 m12x1 5 9 2 8 26 20 20 20 12052 75 4x14105 117 164f05 13 2 9 2 m12x1 5 9 3 6 35 40.

Metal seated ball valve torque chart.

The torque required to operate a ball valve is a function of friction between the valve s metal parts and its soft sealing materials. The friction points in a floating ball valve are the stem and the ball seat. Sizing torque requirements and technical data. See pages 35 to 43 for actuator.

Ach ball and seat sub assembly is accurately machined ground and then mate lapped for a perfect match. Larger sizes and unique material requirements are available upon request. The soft seated ball valves are factory tested. Created by the industry s leading design engineers with over 50 years of experience in metal seated valve services the tvc sst valve team can solve your power problems.

It is good for service temperatures ranging from 320 f to 550 f black 10 y. Erode the seat and metal parts. T series reduced operating torque asme 150 2500 class the mogas t series trunnion mounted ball valve is available in either metal seated and soft seated from 3 to 60 inch and two or three piece designs with operating temperature from 50 f to 400 f 45 to 204 c. The following explains why this factor is used and how it works.

The complete valve assembly demonstrates high repeatability in terms of sealing rate b factory tested low torque and smooth operation at various temperatures and pressures. Krombach metal seated ball valve s ball and seat are machined to such precise tolerances that ball and seat lapping does not have to be performed individually for each valve making both the ball and seat freely interchangeable if equal in nominal size. In sizes from 1 2 to 2 1 2 the isolation valve is designed for the limited class rating up to 4500 class. Actuators on soft seated valves.

Velan memoryseal ball valves can be equipped with electric pneumatic hydraulic or gear actuators. It has a low coeffi cient of friction for lowering valve torque. For securaseal metal seated ball. Metal seated vall valves are mainly used for heavy duty applications.

Valves see special catalog vel ms. Valve testing api 598 fire safe testing api 607 iso 10497. High speed steam may carry water droplets dissolved gases and other suspended solids. When sizing rack and pinion pneumatic spring return actuators a multiplier may be applied to the published ball valve torque.

Krombach metal seated ball valves are ideal for the refining power generation and oil and gas industries.