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3 ways by-pass valve

PN10 to PN250, 150Lbs to 1500Lbs according to DN

DN15 to DN300 - 1/2" to 12"

Characteristics
Options
Achievements
Options
  • Connection :
  • Any type of connection (screwed-on, welded or floating flange, threaded, SW, BW, double male or female connection, single male or female connection or other special connections)
  • Operation :
  • Multiturns pneumatic actuator
  • Stainless steel pneumatic actuator
  • Intelligent positioner
  • Electro-pneumatic, pneumatic positioner
  • Electro distributor
  • Electric actuator
  • Manual override
  • Chain handwheel
  • Manual gear actuator
  • Manual angular gear actuator
  • Manual operator with locking mechanism
  • Extended manual operator with/without cardans
  • Manual operator mounted on ISO base for later adaptation of actuator
  • Limit switches (mechanical, inductive or other)
  • Junction box
  • Specific configurations :
  • Bellows seal on stem
  • Inside and/or outside polishing
  • Removable seats
  • Heating jacket
  • Leak detector at stuffing box
  • Nitrogen flushing unit at junction box
  • Draining or cleaning nozzles
  • Certifications :
  • ATEX certification
  • Fire-safe design
  • FDA certificate for body seal and stuffing box packing

 

Notes:

Some options are not compatible

Special valve can be designed upon request

Dimension

DN15 to DN300

Pressure class

PN10 to PN250, 150Lbs to 1500Lbs according to DN

Connection

Welded, srcrewed-on or floating flange

Body shape

Straight, angle, other...

Body seal material

25% PTFE glass, graphite, reinforced graphite, stainless steel graphite or stainless steel PTFE spiral, helicoflex®, viton, kalrez®, EPDM…

Disc seating surface

Metal / metal, PTFE, EPDM, stellite, other...

Material in contact with the fluid

Steel, stainless steel, duplex and super duplex, inconel, incoloy®, hastelloy®, titanium, uranus®, nickel, monel

Actuator

Manual, pneumatic (single or double acting), electrical or hydraulic

3 ways by-pass valve DN25 PN50 in stainless steel 316L, with lateral outlet, heating jacket and manual handwheel open/close switch limits
3 ways by-pass valve DN15 PN16 in stainless steel 316L, with manual handwheel
3 ways by-pass valve DN10 PN150 in stainless steel 316L, with manual handwheel
3 ways by-pass valves DN150 and DN80 PN100 in steel P265GH, with manual handwheel
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Operational principle:

3 ways by-pass valves allow to switch over from one relief valve system to another.

Also called “selector valves”, 3 ways by-pass valves are adapted to compulsory decompression system (rupture disc, safety valve) and other parallel strainer systems.

 

Advantages:

- Avoid all risk of production system shutdown. Our 3 ways by-pass valves design ensure that at least one pressure relief devices be open.

- Switch over one pipeline to another through one single operation and without using interlock