Multi Stage Pressure Control Valve

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    2018-09-04 10:53

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Xi'an Parri Control Technology Co.,Ltd

By certification [File Integrity]

Contact: somy436(Mr.)  

Email: sale@xaparri.com

Telephone: +86-29-86289310

Phone: 13900000000

Area: Shaanxi

Address: Shaanxi

Website: http://www.xaparri.com/ http://somy436.wontogo.com/

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.

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


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