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| Globe Control Valve |
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▶QUICK CHANGE TYPE
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TOP GUIDE SINGLE SEATED TYPE
The design of Quick Change type control valves are designed for low and medium duty service. The compact valve, simple construction having low pressure loss, allows large flow capacity rangeability, and high accuracy flow characteristics.
It is available with bellows seal, extension, fin, jacket bonnet. The flow shut-off performance complies with the JIS, ANSI standards. Standard combined actuators are multi-spring diaphragm actuator.
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| ▶CAGE TYPE |
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CAGE GUIDED TYPE
The PROVAL cage balanced control valves are designed for heavy duty service.
The valves plug is of a pressure-balanced type that permits flow control of a high differential pressure with bellows seal, extension, fin, jacket bonnet.
Standard actuators are multi-spring diaphragm actuator.
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▶HIGH PRESSURE, TEMPERATURE SERVICE TYPE
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LOW NOISE, ANTI-CAVITATION TRIM TYPE
This service was designed for reliable and stable Process fluid control under extra severs flow condition (high temperature, and high difference pressure). A wide variety of trim is available for the“HIGH-SERVICE” control valves.
They are designed to match Virtually any service operational requirement. All “HIGH SEVICE” trims feature a quick change to Reduce downtime for inspection, maintenance or change out, and most are cage guided, further ensuring smooth, accurate operation. Standard combined actuators multispring diaphragm actuators.
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| ▶SEVERE SERVICE CONTROL VALVE PROTECK |
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SEVERE SERVICE CONTROL TYPE
Many valves are marketed for critical service control but few can provide the complete solution needed for the grueling conditions of severe service PROTEK® valve was designed solely for this purpose - to meet your specific control valve needs. Whatever your application, for severe service control, there is only one intelligent choice: PROVAL PROTEK® control valve.
PROTEK® is PROVAL of the line high performance specialty trim that offers a proven solution th those severe service applications where a true velocity control trim is the best of possibly the only answer. By limiting the fluid velocities inside the valve, PROTEK® stacked disc design precludes those problems typically associated with high vibration and poor control. Every PROTEK® trim is custom designed to meet the needs of the toughest liquid, steam and gas services in the power and process industries.
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| ▶BELLOWS SEAL TYPE |
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BELLOWS SEAL TYPE 2-WAY & 3-WAY GLOBE VALVE
Wasted material, employee safety, environmental concerns all good reasons for today’s plant operator to be concerned about fugitive emissions from hazardous processes.
To stop packing leakage from control valves.
Using a formed a formed metal bellows design with minimal welded joint, the design of PROVAL bellows has a full-cycles lift up to 5 a hundred thousands cycles.
This ensures years of safe and reliable operation in hazardous process ranging from -160°C(-230°F) ~ 350°C (688°F) and pressure to 40(kgf/cm²).
A metal should envelopes the bellows acting as a pressure boundary in service, allowing use of a single, pressurized gasket seal and preventing fluid contact with the bellows housing during normal operation.
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| ▶CRYOGENIC SERVICE GLOBE VALVE |
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CRYOGENIC SERVICE GLOBE VALVE
The Cryogenic service is a globe style valve which consists of single seat, balanced cage trim with cage guide and quick-change trim.
Cryogenic bodies are constructed of austenitic staniless steel(SUS316).
The cryogenic extended bonnet regulates the temperature of gas moderately and protects the damage of packing from the serevice fluid.
It is usually manufactured from 304 or 316 stainless steel and handles temperature down to -196℃.
Standard construction consists of stainless steel bonnet nuts and stud bolts.
Standard cryogenic valve combine diaphragm actuator with multi-spring.
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| ▶3-WAY GLOBE VALVE |
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3-WAY TYPE CONTROL GLOBE VALVES
The design of Proval 3- way control globe valves are generally used either to mix flowing medium or to divert on medium into two outlet flows,and are often used when fluid temperature is to be adjusted through heat exchangers.
Mixing-type valves also can be used for diverting service when both the nominal size pressure differential is small.
However, the mixing type is more suitable when the nominal size is larger than 4" and the pressure differential is also considerable.
Standard 3-way valve combine diaphragm actuator with multi-spirng
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| ▶2-WAY ON-OFF GLOBE VALVE |
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PNEUMATIC ON-OFF 2, 3-WAY GLOBE VALVE
The PROVAL single soft seat control valves are designed for compact and leakage zero (Metal seat : ANSI Class Ⅳ std. tight sut off : Ⅴ). The valve simple construction having low pressure loss, high accuracy flow characteristics.
The flow shut-off performance complies with the JIS standards. Standards combined actuators are Cylinder & Diaphragm actuator is standard application.
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| ▶FORGED VALVE |
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FORGED STEEL GLOBE
More flow capacity for initial investment. Streamlined flow passages provide greater capacities than most forged bodies of the same line size.
Also, trim inventory costs are cut because dimensional standardization permit use of most standard proval valve cage trim parts, and be easily guick changed.
High-pressure and temperature capability with class IV shut off.
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| ▶ANGLE VALVE |
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CAGE GUIDED TYPE
The PROVAL cage balanced control valves are designed for heavy duty service.
The valves plug is of a pressure-balanced type that permits flow control of a high differential pressure with bellows seal, extension, fin, jacket bonnet.
Standard actuators are multi-spring diaphragm actuator.
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