3550 SZ Series Pressure Regulators

3550 SZ Series
Pressure Regulators
Low Temperature -50ºC/ -58ºF Available Click Here

General Description

316 stainless steel pressure regulator for pressure regulation of compressed gases for the offshore industries.

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

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 -50ºC to +90ºC (-58ºF to +194ºF)	Ports • 1/4", 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

Body /Bonnet /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