Control valves

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High pressure and low flow control valves

Control valves for high pressures and Micro-?????

High pressures and Micro-???????

Control valves with pneumatic actuator 8000 series and 708 are able to withstand pressures up to 422 bar and temperatures from -220 ° C to 816 ° C depending on model. They are made in 2-way (DN 8-50) and three-way (DN 8-25) with Kv values ​​of 0.000009 to 14.62 m3 / h. Construction materials are carbon steel, 316 stainless, Monel, Alloy 20, Hastelloy B and C, Brass, PVC, Kynar and stainless steel with Teflon wetted parts. Conexionan Valves NPT and BSP and SW. They have three types of step characteristics: linear, equal percentage and everything / anything, being able to close against more than 345 bar differential pressure.

Valve cage guided control

V1C control valve with balanced shutter allows working with high pressure applications requiring high sealing actuators using standard sizes. The application range in sizes ranging from 1 1/2 “to 6”, allowing it to operate at 102 bar differential pressure valves 6 “and temperatures up to 538 ° C. The valve has two types of internal discharge cone guidance that allows working with fluids and gases with high differential pressures, and internal control for services with liquid cavitation in critical high fluid velocity, noisiness and high pressure drops.

Control Ball valve CV 3000 and 10.000 Series

MARWIN control valves 3000 and 10000 series allow the regulation of fluids at high differential pressures and high flow laminar sealing ANSI B16.105 Class VI or seal the bubble.

The valves are available in sizes from 1/4 “to 4” KVS values ​​from 0.12 m3 620 m3 / h. Construction materials are carbon steel, 316 stainless steel, Alloy 20, Duplex, Hastelloy B and C, Monel, Titanium and Bronze 254SMO for both bodies to all internal materials.

This type of valve has two types of seats, elastomeric seal or metal / metal, which limit the pressure and temperature in the application of this valve.

A wide range of elastomeric seals can be used depending on the fluid vehicle such as PTFE, RPTFE, C-RPTFE, Delrin, PEEK, C-PEEK, UHMWPE or KEL-F, the ones supporting pressures up to 414 bar at temperatures from -196 ° C to 315 º C.

The closures metal / metal sealing feature ANSI B16.105 Class VI, while the seats and ball coated with special materials Chromium or Tungsten Carbide and prepared for applications with pressures up to 255 bar and temperatures up to 538 ° C. The pressure rating of these control valves range from 600 Lbs. to 2500 lbs.

The fluid control element (“V-port”) is located on the front face of the valve seat, protecting the same from the high flow rates and ensuring high tightness. It is very easy refilling, making it easy to move from a nominal flow value to another very different without changing the size of the valve, which provides high versatility.

Mk 8000
Mark 708
Mk708 HT
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