Optimizing Performance With Severe Service Control Valves
Vytal Controls Pvt Ltd 11000 series & 12000 series pneumatically operated globe valves are designed for process control of high/low-pressure steam, clean/dirty, corrosive liquid and gases. They are available in sizes ranging from ½” to 20” in pressure classes 150 through 2500. Control valves are supplied with either a piston cylinder or spring and diaphragm actuator (direct or reverse acting) and a number of optional accessories to suit the duty requirement. These valves permit field interchangeability of actuator and trim types, thus proving to be economical in case of field conversion.
In continuation to Vytal Controls Pvt Ltd’s traditional success in process control application, the 11000 series & 12000 series provide optimum solutions to the needs of the Fertilizer, Petrochemical, Refinery, Chemical, Power, and other process industries.
Technical Specification
Technical Specification for Severe Service Control Valve.
Benefits of Server Service Control Valves
Severe service control valves are used in harsh conditions like corrosive liquid and gases, high noise, vibrations, cavitation, flashing, erosion, etc. where the usual control valves may not perform well. These valves offer various benefits.
- Variety of standard (reversible) body material are available to suit the duty conditions. They are Cast Steel (A 216 WCB) Stainless Steel (A 351 CF 8/8 M) Chrome-Molly (A 217 WC1,6 & 9), Hastelloy (A 494), Monel (A 296) or ALLOY 20 (A 351 GR CN 7M).The body and bonnet are built as per ANSI standard.
- The extra wall thickness provides strength and corrosion allowance.
- Vytal Controls Pvt Ltd control valves are fitted with different types of bonnet. for general applications, plain standard bonnet are incorporated, In order to protect the packing gland from extreme cold, in case of cryogenic service, extended bonnet can be fitted.
- The trim being responsible for the control of fluid process, is the most important assembly of control valve. It is expected to give long trouble free operation without a damage, owing to wire, drawing, cavitation, vibration (noise). At the same time, the selection of proper trim characteristic is equally responsible to get the desired performance. Vytal Controls Pvt Ltd offers variety of trim options depending on the application. They are modified Parabolic, Linear, Quick Acting or Equal Percentage. Standard trim components like plug, seat, cage/Retainer and cylinders are 410/420 (hardened) SS Alloys, Optional materials are stellated.
- Regular packing material are PTFE & Grafail. However, for most applications like steam and other hazardous fluids, Grafail (pure graphite) is recommended by MECASTER. Grafail contains no resins/binders or fillers and offers outstanding high temperature characteristics.
- Vytal Controls Pvt Ltd has Varietier of actuators like single acting spring & Diaphragm actuators with single spring / Multi spring ( Direct / Reverse type ), double acting piston & cylinder actuators to meet all requirement of thrust & stroke length.