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Products:
[3550 SZ Series Air Service]
[4500 SZ Series Check Valves (Non-Return)]
[3550 SZ Series Filter Regulators]
[3550 SZ Series Filters]
[4500 SZ Series Flow Regulators]
[4500 SZ Series Needle Valves]
[1750 SZ Series Poppet Valves ]
[3550 SZ Series Pressure Regulators]
[4500 SZ Series Quick Exhaust Valves ]
[1500 SZ Series Spool Valves ]

3550 SZ Series Air Service

3550 SZ Series
Air Service

General Description

316 Stainless Steel Air Service equipment provides industries with a complete range of air service equipment 1/4-1" NPT (BSP).
Designed and manufactured in Wolverhampton, UK. The range has been developed to provide complete solutions to pressure control, filtration and inline lubrication applications. 

Units

    1. Filters Regulators
    2. Filter/Regulators

Operating Fluids

Air and other Gases

Technical Data

Working Temperature
-50°C to +90°C (-58°F to +194°F)

Elements
40 micron (optional 5 micron)

Max Inlet Pressure
Filter - 20 bar
Regulators - 20 bar
Filter/ Regulators - 20 bar
High Pressure - 40 bar

Ports
1/4", 1/2", 3/4" and 1" NPT and BSP

 

Drain Types
Manual

Check Valves

4500 SZ Series
Check Valves (Non-Return)

General Description

Non Return Valves
316 Stainless Steel non return valves for pressures up to 12 bar (174 psi)

316 Stainless Steel non return valves for pressures up to to 25 bar (362 psi)

Operating Fluids

Gases
Filtered lubricated or non-lubricated air, inert gas, sweet (natural) gases. 
Sour gas option available (details on application)

Liquids
Low pressure hydraulic, mineral oil or water.

Technical Data

Exhaust Port Flow Regulator
1/4"    646 (23.0)    - 0.65 (10.0)
3/8"  1100 (39.0)    - 1.10 (17.0)
1/2"  1800 (64.0)    - 1.80 (28.0)

Maximum flow L/min (SCFM) - Cv(Kv)
at 6 bar (87 psi), 1 bar (14.5 psi) differential

Working temperature
-50°C to +90°C (-58°F to +194°F)

Needle Valve (3mm orifice)
1/4"    290 (10.5)    - 0.30 (4.6)

Working pressure (gases & liquids)
12 bar (174 psi)
24 bar (362 psi)

Non Return Valves (12 bar)
1/4"    1600 (57)    - 1.6 (25.0)
3/8"    2200 (80)    - 2.3 (35.0)
1/2"    3800 (137)   - 3.9 (60.0)
3/4"    5800 (205)   - 5.8 (90.0)
1"       7700 (274)   - 7.8 (120.0)

Minimum opening pressure
0.2 bar (2.90 psi)

Non Return Valves (25 bar)
1/4"      736 (26)    - 0.74 (11.4)
3/8"    1840 (45)    - 1.85 (28.5)
1/2"    2600 (91)    - 2.60 (40.0)

Construction Materials

Body
Stainless steel AISI 316L to NACE MR-0175
Brass CZ 121M

Internal parts
Stainless steel AISI 316L to NACE MR-0175

Springs
316 Stainless steel

Seals
EPDM

3500 Series Filter Regulators

3550 SZ Series
Filter Regulators

General Description

A 316 stainless steel combination unit for filtration and pressure regulation of compressed air offshore industries.

    1. 316 Stainless steel throughout. Large flow paths minimise pressure drop. Rolling diaphragm design.
    2. Precision adjustment

Filter Unit

Large 40 micron standard element with manual 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
   -50°C to +90°C (-58°F to +194°F)

Ports
1/4", 1/2", 3/4" and 1" NPT and BSP

Flow capacity
10bar (145 psi) inlet pressure, 6 bar (87psi) secondary pressure with 1bar (14.5 psi) pressure drop
   1/4" - 62 dm¨°/sec (130 SCFM)
   1/2" - 100 dm¨°/sec (212 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
Manual drain - 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)

Drain Types
Manual

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
40 micron 316 Stainless steel (5 micron option)

Valve spring
Inconel X750

Diaphragm and valve assembly 
Fluorosilicone and 316 Stainless steel

Adjustment spring
316 Stainless steel

Seals
Fluorosilicone

3500 Series Filters

3550 SZ Series
Filters

General Description


316 stainless steel filter for filtration of compressed air in the offshore, food, pharmaceutical and allied industries. Large 40 micron standard element with manual or automatic drain for the removal of liquids and solids.

    1. Large flow paths minimise pressure drop. 316 Stainless steel throughout.
    2. Large stainless steel element.

Operating Fluids

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

Ingress protection
Heavy seas / on deck rating

Technical Data

Working Temperature
Ambient temperature
 -50°C to +90°C (-58°F to +194°F)

Ports
1/4", 1/2", 3/4" and 1" NPT and BSP

Flow capacity
7 bar (102 psi) supply pressure, 0.35 bar (5 psi) pressure drop
   1/4" - 23 dm¨°/sec ( 49 SCFM)
   1/2" - 49 dm¨°/sec (104 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
Filter - 20 bar
Regulators - 20 bar
Filter/ Regulators - 20 bar
High Pressure - 40 bar

Working Pressure
Manual drain - 20 bar (290 psi)

Drain Types
Manual

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

Construction Materials

Bod /Bonne /Bowl and Internals 
Stainless Steel AISI 316L to NACE MR-01-75

Element
316 Stainless Steel

Seals 
Fluoroelastomer

 

4500 SZ Series Flow Regulators

4500 SZ Series
Flow Regulators

General Description

Uni-directional
316 Stainless Steel in-line flow regulators for uni-directional operation (free flow return).

Bi-directional
316 Stainless Steel in-line flow regulators for bi-directional operation (separate flow control in each direction).

Operating Fluids

Gases
Filtered lubricated or non-lubricated air, inert gas, sweet (natural) gases.  

Technical Data

Maximum flow L/min (SCFM) - Cv(Kv)
at 6 bar (87 psi), 1 bar (14.5 psi) differential

Uni-directional

1/4"    1000 (35)    - 1.0 (15.5)
3/8"    1680 (59)    - 1.7 (26.0)
1/2"    2520 (89)    - 2.5 (39.0)
3/4"    5428 (192)   - 5.4 (84.0)
1"       9820 (347)   - 9.8 (152)

Bi-directional
1/4"      620 (22)    - 0.6 ( 9.6)
3/8"    1290 (45)    - 1.3 (20.0)
1/2"    2000 (71)    - 2.0 (31.0)

Maximum flow
at 6 bar (87 psi), 1 bar (14.5 psi) differential
3/2 valves - 480 L/min (17 SCFM)
5/2 valves - 680 L/min (24 SCFM)

Working pressure (gases)
12 bar (174 psi)

Working temperature
-50°C to +90°C (-58°F to +194°F)

Construction Materials

Body
Stainless steel AISI 316L to NACE MR-0175

Seals
EPDM

Spring 
316 Stainless steel

Internal parts
Stainless steel AISI 316L to NACE MR-0175

4500 SZ Series Flow Regulators

4500 SZ Series
Needle Valves

General Description

Needle Valve
316 Stainless Steel needle valve with 3mm or 6mm orifice.

Exhaust Port Flow Regulators
316 Stainless Steel exhaust flow regulator/ breather supplied
complete with tamper proof cap.

Operating Fluids

Gases
Filtered lubricated or non-lubricated air, inert gas, sweet (natural) gases. 

Technical Data

Exhaust Port Flow Regulator
1/4"    646 (23.0)    - 0.65 (10.0)
3/8"  1100 (39.0)    - 1.10 (17.0)
1/2"  1800 (64.0)    - 1.80 (28.0)

Maximum flow L/min (SCFM) - Cv(Kv)
at 6 bar (87 psi), 1 bar (14.5 psi) differential

Needle Valve (3mm orifice)
1/4"    290 (10.5)    - 0.30 (4.6)

Working pressure (gases)
12 bar (174 psi)

Working temperature
-50°C to +90°C (-58°F to +194°F)

Construction Materials

Body
Stainless steel AISI 316L to NACE MR-0175

Seals
EPDM

Springs
316 Stainless steel

Internal parts
Stainless steel AISI 316L to NACE MR-0175

1750 Series Poppet Valves

1750 SZ Series
Poppet Valves

General Description

A range of compact 3/2 pilot solenoid and pilot operated poppet valves in 316 stainless steel for use on gases.

    1. High flow. Hazardous area solenoids. Coil with 316 housing.
    2. Atex Certification.

Operating Fluids

Gases
Filtered lubricated or non-lubricated air, inert gas, sweet (natural) gases. Sour gas option available (details on application) 

Technical Data

Solenoid
EExd

Cv (Kv)
1/4" - 1.75 (25)
3/8" - 2.2 (31)
1/2" - 4.00 (57)
3/4" - 10.2 (146)
1" - 15.0 (214)  
1 " - 20.0 (286)
1" - 28.0 (400)

Working Temperature
Valve only
   -50°C to +90°C (-58°F to +194°F)

Ports
1/4" - 11/2"NPT (BSP optionavailable)

Pressure Ratings
(gases & liquids)
X3 to 12 bar (45 to174 psi)

Flow
Maximum flow at 6 bar (87 psi), 1 bar (14.5 psi) dif differential
1/4" - 2668 L/min ( 94 SCFM)
3/8" - 3521 L/min ( 124 SCFM)
1/2" - 6402 L/min ( 226 SCFM)
3/4" - 16005 L/min ( 565 SCFM)
1" - 24008 L/min ( 848 SCFM)
1 " - 32010 L/min (1130 SCFM)
1" - 44814 L/min (1583 SCFM)

Construction Materials

Body
Stainless steel AISI 316L to NACE MR-01-75

Seals 
EPDM

Spring 
316 Stainless steel

Poppet 
Stainless steel AISI 316L  to NACE MR-01-75
 

Solenoid 
ATEX

3550 SZ Series Pressure Regulators

3550 SZ Series
Pressure Regulators
Low Temperature -50°C/ -58°F

General Description


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

    1. 316 Stainless steel throughout. Large flow characteristics. Rolling diaphragm design. High relief flow. Precision adjustment. Integral mounting holes.
    2. Full range of accessories.

Operating Fluids

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

Ingress protection
Heavy seas / on deck rating

Technical Data

Working Temperature
Ambient temperature
   -50°C to +90°C (-58°F to +194°F)

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 dm¨°/sec (133 SCFM)
   1/2" - 103 dm¨°/sec (218 SCFM)
   3/4" - 130 dm¨°/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

 

4500 Series Quick Exhaust Valves

4500 SZ Series
Quick Exhaust Valves

General Description

Quick Exhaust Valves
316 Stainless Steel quick exhaust valves in 5 sizes.

Operating Fluids

Gases
Filtered lubricated or non-lubricated air, inert gas, sweet (natural) gases. 

Technical Data

Exhaust Port Flow Regulator
1/4"    646 (23.0)    - 0.65 (10.0)
3/8"  1100 (39.0)    - 1.10 (17.0)
1/2"  1800 (64.0)    - 1.80 (28.0)

Supply to outlet
1/4"    1290 (46)    - 1.3 (20.0)
3/8"    1810 (64)    - 1.8 (28.0)
1/2"    3810 (135)   - 3.8 (59.0)
3/4"    4520 (160)   - 4.5 (70.0)
1"       7700 (274)   - 7.8 (120.0)

Working temperature
-50°C to +90°C (-58°F to +194°F)

Outlet to exhaust
1/4"    2780 (98)    - 2.8 (43.0)
3/8"    3810 (135)  - 3.8 (59.0)
1/2"    6460 (228)  - 6.5 (100.0)
1"   11000 (388)  - 11.0 (170.0)

Working pressure (gases & liquids)
12 bar (174 psi)

Maximum flow L/min (SCFM) - Cv(Kv)
at 6 bar (87 psi), 1 bar (14.5 psi) differential

Construction Materials

Body
Stainless steel AISI 316L to NACE MR-0175

Seals
EPDM

Springs
316 Stainless steel

Internal parts
Stainless steel AISI 316L to NACE MR-0

1500 Series Spool Valves

1500 SZ Series
Spool Valves

General Description

A range of compact 3/2 and 5/2 solenoid, pilot, mechanical or manually operated spool valves in 316 stainless steel for use on gases.

    1. Hazardous area solenoids. Coil with 316 housing. Closed centre. Atex Certification.
    2. CENELEC approvals.

Operating Fluids

Gases
Filtered lubricated or non-lubricated air, inert gas, sweet (natural) gases. 

Technical Data

Solenoid
EExd

Cv (Kv)
3/2 valves 1.0 (15)
   5/2 valves 1.2 (17)

Working Temperature
Valve only
   -50°C to +90°C (-58°F to +194°F)

Ports
1/4"NPT (BSP option available)

Pressure Ratings
Single solenoid valves
   3 to 12 bar (45 to174 psi)
Double solenoid valves
   2 to 12 bar (30 to174 psi)

Flow
Maximum flow at 6 bar (87 psi),
X1 bar (14.5 psi) differential
X3/2 valves - 1000 L/min (35.3 SCFM)
X5/2 valves - 1200 L/min (42.4 SCFM)

Construction Materials

Body/ Spool
Stainless steel AISI 316L to NACE MR-01-75 

Seals 
EPDM

Spring 
316 Stainless steel

Solenoid 
ATEX

Application: