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  3550 Series Regulators
3550 Series Regulators
3550 Series
Regulators

Low Temperature -50ºC/ -58ºF Available Click Here
General Description
316 stainless steel pressure regulator for pressure regulation of compressed gases for the offshore, food, pharmaceutical and allied industries.

316 Stainless steel throughout. Large flow characteristics. Rolling diaphragm design. High relief flow.
   Precision adjustment. Integral mounting holes.

Full range of accessories.

Filter Unit

Large 40 micron standard element with manual or automatic drain for the removal of liquids and solids.
(5 micron element 3/4 - 1"

 

Operating Fluids

Gases, air, inert gas, sweet (natural) and sour gases.

Ingress protection Heavy seas / on deck rating,
Non relieving Self relieving

Technical Data

Working Temperature
• Ambient temperature
   -20ºC to +80ºC (-4ºF to +176ºF)
• Low temperature version
   -50ºC ( -58ºF)

Contact Customer Services for details

Ports
• 1/4", 3/8", 1/2", 3/4" and 1" NPT
(BSP option available)

Flow capacity
10bar (145 psi) inlet pressure, 6 bar (87psi) secondary pressure with 1bar (14.5 psi) pressure drop
   1/4" - 63 dmÒ/sec (133 SCFM)
   1/2" - 103 dmÒ/sec (218 SCFM)
   3/4" - 130 dmÒ/sec (274 SCFM)

Cv (Kv)
• 1/4" - 2.4 (34.0)   3/8" - 3.3 (47.0)
• 1/2" - 4.4 (63.0)   3/4" - 5.0 (71.0)
• 3/4" - 10.0 (145) High Flow version
• 1" - 15.0 (217) High Flow version

Max Inlet Pressure
• 20 bar (290 psi)

Regulated pressure
• 0.50 to 2 bar (7.2 to 29 psi)
• 0.50 to 4 bar (7.2 to 58 psi)
• 0.50 to 8 bar (7.2 to 116 psi)
• 0.50 to 12 bar (7.2 to 174 psi)

Gauge ports
1/8" NPT
(1/4" NPT and BSP options available)

Relief /vent port
1/8"NPT (Fitted with bug screen)

Construction Materials
Bod /Bonne /Bowl and Internals 
• Stainless Steel AISI 316L to NACE MR-01-75
Element
• 316 Stainless Steel
Bonnet Bowl
• 316 Stainless Steel
Seals 
• Fluoroelastomer
Valve spring
• Inconel X750

Diaphragm and valve assembly 
• Fluoroelastomer and 316 Stainless steel
Adjustment spring
• 316 Stainless steel
 
Additional Resources

CAD Downloads

PDF Downloads

Literature Order Form

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