These high-quality MIDLAND ACS MODEL 3550 Stainless Steel pressure regulators are suitable for the pressure control of gases, air, sweet and sour gases and compatible liquids. With a rolling diaphragm for precise control and high flow characteristics the 3550 and 3500 series accept a 20bar inlet pressure, with a wide choice of spring outlet ranges.
Items held in stock are available for next day delivery if ordered by 2pm. Items not in stock will state expected delivery time for each individual part number.
Any products not availale for online purchase are generally on a 2-3 week delivery, please call our sales office on +44 (0) 151 343 9966 for price and delivery.
If you wish to return a product for repair, exchange or upgrade please call our sales office on +44 (0) 151 343 9966 to obtain a Returns Note Authorisation (RN) form and a member of staff will instruct you further.
Any products returned without an RN will not be processed.
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-2.0 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" BSP.
Relief Function: Non-relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£286.03 (ex VAT)
£343.24 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-2 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" NPT.
Relief Function: Non-relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£251.99 (ex VAT)
£302.39 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 4 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" BSP.
Relief Function: Non-relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£284.11 (ex VAT)
£340.93 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 4 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" NPT.
Relief Function: Non-relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£251.99 (ex VAT)
£302.39 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 8 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" BSP.
Relief Function: Non-relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£286.03 (ex VAT)
£343.24 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 8 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" NPT.
Relief Function: Non-relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£251.99 (ex VAT)
£302.39 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-12 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" NPT.
Relief Function: Non-relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481 101990
Country of Origin: United Kingdom
Net Weight: 1.65kg
£251.99 (ex VAT)
£302.39 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-2 bar.
Material: 316 Stainless steel body, EPDM seals.
Port Size: 1/4" NPT.
Relief Function: Self relieving.
Media & Ambient Temp Range: -50 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£271.94 (ex VAT)
£326.33 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 12 bar.
Material: 316 Stainless steel body, EPDM seals.
Port Size: 1/4" NPT.
Relief Function: Self relieving.
Media & Ambient Temp Range: -50 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£271.94 (ex VAT)
£326.33 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-2 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" BSP.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£286.03 (ex VAT)
£343.24 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 2 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" NPT.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£251.99 (ex VAT)
£302.39 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 4 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" NPT.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£251.99 (ex VAT)
£302.39 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 8 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" BSP.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£277.19 (ex VAT)
£332.63 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 8 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" NPT.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£251.99 (ex VAT)
£302.39 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-12 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" BSP.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£286.03 (ex VAT)
£343.24 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-12 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" NPT.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£251.99 (ex VAT)
£302.39 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 12 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/4" NPT.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 2.4
Available Option: 1/4" NPT Gauge Port.
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.65kg
£276.54 (ex VAT)
£331.85 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-4 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/2" NPT.
Relief Function: Non-relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 4.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.70kg
£365.95 (ex VAT)
£439.14 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-8 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/2" NPT.
Relief Function: Non-relieving
Media & Ambient Temp Range: -20 to +80 degC
CV: 4.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.70kg
£365.95 (ex VAT)
£439.14 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-12bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/2" NPT.
Relief Function: Non-relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 4.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.70kg
£365.95 (ex VAT)
£439.14 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 2 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/2" NPT.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 4.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.70kg
£365.95 (ex VAT)
£439.14 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-8 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/2" NPT.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 4.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.70kg
£365.95 (ex VAT)
£439.14 (inc VAT)
Max Inlet Pressure: 20bar, Outlet Pressure: 0.5 - 12bar, Self Relieving, Viton Seals, Cv: 4.4
HS Code: 8481 1019
£402.55 (ex VAT)
£483.06 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5-12 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 1/2" NPT.
Relief Function: Self relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 4.4
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.70kg
£365.95 (ex VAT)
£439.14 (inc VAT)
Midland 3550 Series Pressure Regulator.
Maximum Supply Pressure: 20 bar.
Output Pressure Range: 0.5 - 8 bar.
Material: 316 Stainless steel body, Fluoroelastomer seals.
Port Size: 3/4" NPT.
Relief Function: Non-relieving.
Media & Ambient Temp Range: -20 to +80 degC
CV: 5.0
HS Code: 8481.10.19.90
Country of Origin: United Kingdom
Net Weight: 1.80kg
£443.63 (ex VAT)
£532.36 (inc VAT)
Contact our technical sales advisors here.
Our team of engineers are fully equipped to provide bespoke system design and manufacture.
This process involves specifying, procuring, calibrating and maintaining instrumentation and control systems for industrial and commercial process control applications.
Call our technical sales team for advice
