Multi Stage Pressure Control Valve

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    2019-01-15 13:41

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Company Profile
Xi'an Parri Control Technology Co.,Ltd
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No. 2618, Lugang Building,Xi'an International Trade&Logistics Park, Xi'an City, Shaanxi Province,China



Product Details

Multi Stage Pressure Control Valve

Unbalanced or balanced labyrinth Parri multi stage pressure control valve is designed for a variety of process fluid conditions that are prone to blockage or cavitation; Innovatively designed multi-piece labyrinth disc combinations, each is specifically designed according to different pressure reduction levels and flow capabilities, from the lowest level 2 to the highest level 8, all integrated in the labyrinth disk. The flow channel in each labyrinth has different number of corners and compressed or expanded flow channel groove depending on pressure reduction level. Each multi stage pressure control valve uses a structure of minimum of seven pieces and a maximum of fifteen labyrinth discs overlay. The labyrinth disc design calculates each CV value and flow characteristics accurately through simulated fluid simulation. DN15-DN50 adopt unbalanced type, DN50 and above adopt balanced type.

Product Specification

Size: 1 1/2”-12”, DN40-DN300

Pressure range: Class 150lb-2500lb , PN1.6MPa-PN42.0MPa

Temperature: -29℃~+425℃

Connection: Flanged, BW

Body type: straight through, angle type, z-shaped

Trim features: cage guided, balanced trim, multi hole multi stage pressure cage, ordinary double seated, single

seated structure with balanced seal ring

Upper bonnet type: normal temperature standard, high temperature cooling, low temperature extended

Stem Seal type: ordinary standard packing seal, high temperature packing seal, bellow seal

Standard leakage class: CLASS IV (metal seat, without balanced seal ring), CLASS V (metal seat, with

balanced seal ring)

Flow characteristic: equal percentage, linear

Adjustable ratio: 30:1

Leakage standard: ANSI B16.104

Actuator: Pneumatic diaphragm, Pneumatic piston, Electric, Electro hydraulic actuator

Parts Materials:

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