The Spec-Master nickel plated brass regulators with stainless steel diaphragms are specifically designed to control high pressure high purity (up to grade 6.0) gases providing accurate outlet pressure control.
They are typically use on pipeline systems for speciality gas control applications throughout laboratory, research and development, analytical facilities and many industries.
Spec Master Single Stage Cylinder Regulator (HPS600 Series)
The Spec Master HPS600 Series single stage diaphragm cylinder regulators are designed for primary pressure gas control of non-corrosive or non-toxic high purity gases up to grade 6.0 (99.9999%) in applications where slight variation in outlet pressure is acceptable as cylinder pressure decreases.
Features
- Six Port Configurations
- Front & Rear Panel Mounting Capabilities
- Encapsulated Seat Design
- Low Wetted Surface Area
- Full Range of Inlet & Outlet Fittings
- Side Entry
Materials
- Body – Nickel Plated Brass Barstock
- Bonnet – Nickel Plated Brass Barstock
- Diaphragm – 316L Stainless Steel
- Seal – PTFE
- Seat – PTFE
- Filter – 10 Micron 316L Stainless Steel
Specification
- Maximum Inlet Pressure 60 bar / 300 bar
- Outlet Pressure – 0-1.5 bar; 0-3.5 bar; 0-6 bar; 0-10 bar
- Gauges – 50mm Diameter
- Ports – ¼” NPT Female
- Temperature Range – -20°C to + 60°C
- Flow Coefficient (Cv) – 0.1
- Helium Leak Integrity – 1 x 10?9 mbar l/s
- Weight – 1.2 kg
How to order
Catalogue

Spec Master Single Stage High Pressure Cylinder Regulator (HPS620 Series)
The Spec Master HPS620 Series single stage high pressure piston cylinder regulators are designed for primary pressure gas control of non-corrosive or non-toxic high purity gases up to grade 6.0 (99.9999%) in applications where slight variation in outlet pressure is acceptable as cylinder pressure decreases.
HPS621 Series – FKM Seals
HPS622 Series – EPDM Seals
Features
- Six Port Configurations
- Front & Rear Panel Mounting Capabilities
- Encapsulated Seat Design
- Low Wetted Surface Area
- Full Range of Inlet & Outlet Fittings
- Side Entry
Materials
- Body – Nickel Plated Brass Barstock
- Bonnet – Nickel Plated Brass Barstock
- Piston – Brass
- Seal – FKM / EPDM
- Seat – PCTFE
- Filter – 10 Micron 316L Stainless Steel
Specification
- Maximum Inlet Pressure – 60 bar / 300 bar
- Outlet Pressure – 0-20 bar; 0-50 bar; 0-100 bar; 0-200 bar; 0-250 bar
- Gauges – 50mm Diameter
- Ports – ¼” NPT Female
- Temperature Range – -20°C to + 60°C
- Flow Coefficient (Cv) – 0.1
- Helium Leak Integrity – 1 x 10?9 mbar l/s
- Weight – 1.4kg
How to order
Catalogue

Spec Master Two Stage Cylinder Regulator (HPT600 Series)
The Spec Master HPT600 Series two stage diaphragm cylinder regulators are designed for primary pressure gas control of non-corrosive or non-toxic high purity gases up to grade 6.0 (99.9999%) in applications where constant delivery pressure is required as the cylinder pressure decreases.
HPT601 Series – FFKM Pressure Relief Valve, FKM Seal
HPT602 Series – FFKM Pressure Relief Valve, EPDM Seal
Features
- Six Port Configurations
- Front Panel Mounting Capabilities
- Encapsulated Seat Design
- Low Wetted Surface Area
- Full Range of Inlet & Outlet Fittings
- Side Entry
Materials
- Body – Nickel Plated Brass Barstock
- Bonnet – Nickel Plated Brass Barstock
- Diaphragm – 316L Stainless Steel
- Seal – PTFE
- Seat – PCTFE
- Filter – 10 Micron 316L Stainless Steel
Specification
- Maximum Inlet Pressure -60 bar / 300 bar
- Outlet Pressure – 0-1.5 bar; 0-3.5 bar; 0-6 bar; 0-10 bar
- Gauges – 50mm Diameter
- Ports – ¼” NPT Female
- Temperature Range – -20°C to + 60°C
- Flow Coefficient (Cv) – 0.079
- Helium Leak Integrity – 1 x 10?9 mbar l/s
- Weight – 2.0 kg
How to order
Catalogue

Spec Master Two Stage High Pressure Cylinder Regulator (HPT620 Series)
The Spec Master HPT620 Series two stage high pressure piston cylinder regulators are designed for primary pressure gas control of non-corrosive or non-toxic high purity gases up to grade 6.0 (99.9999%) in applications where slight variation in outlet pressure is acceptable as cylinder pressure decreases.
HPT621 Series – FKM Seals
HPT622 Series – EPDM Seals
Features
- Six Port Configurations
- Front Panel Mounting Capabilities
- Encapsulated Seat Design
- Low Wetted Surface Area
- Full Range of Inlet & Outlet Fittings
- Side Entry
Materials
- Body – Nickel Plated Brass Barstock
- Bonnet – Nickel Plated Brass Barstock
- Piston – Brass
- Seal – FKM / EPDM
- Seat – PCTFE
- Filter – 10 Micron 316L Stainless Steel
Specification
- Maximum Inlet Pressure – 300 bar
- Outlet Pressure – 0-20 bar; 0-50 bar
- Gauges – 50mm Diameter
- Ports – ¼” NPT Female
- Temperature Range – -20°C to + 60°C
- Flow Coefficient (Cv) – 0.079
- Helium Leak Integrity – 1 x 10?9 mbar l/s
- Weight – 2.0kg
How to order
Catalogue

Spec Master Single Stage Line Regulator (HPL600 Series)
The Spec Master HPL600 Series single stage diaphragm line regulators are designed for secondary pressure gas control of non-corrosive or non-toxic high purity gases up to grade 6.0 (99.9999%) on gas distribution systems.
Features
- Four Port Configurations
- Front & Rear Panel Mounting Capabilities
- Encapsulated Seat Design
- Low Wetted Surface Area
- Full Range of Inlet & Outlet Fittings
- Side Entry
Materials
- Body – Nickel Plated Brass Barstock
- Bonnet – Nickel Plated Brass Barstock
- Diaphragm – 316L Stainless Steel
- Seal – PTFE
- Seat – PCTFE
- Filter – 10 Micron 316L Stainless Steel
Specification
- Maximum Inlet Pressure – 207 bar
- Outlet Pressure – 0-1.5 bar; 0-3.5 bar; 0-6 bar; 0-10 bar
- Gauges – 50mm Diameter
- Ports – ¼” NPT Female
- Temperature Range – -20°C to + 60°C
- Flow Coefficient (Cv)- 0.1
- Helium Leak Integrity -1 x 10?9 mbar l/s
- Weight – 1.1 kg
How to order
Catalogue

Spec Master Single Stage High Pressure Line Regulator (HPL620 Series)
The Spec Master HPL620 Series single stage high pressure piston line regulators are designed for secondary pressure gas control of non-corrosive or non-toxic high purity gases up to grade 6.0 (99.9999%) on gas distribution systems.
HPL621 Series – FKM Seal
HPL622 Series – EPDM Seal
Features
- Four Port Configurations
- Front & Rear Panel Mounting Capabilities
- Encapsulated Seat Design
- Low Wetted Surface Area
- Full Range of Inlet & Outlet Fittings
- Side Entry
Materials
- Body – Nickel Plated Brass Barstock
- Bonnet – Nickel Plated Brass Barstock
- Piston – Brass
- Seal – FKM/EPDM
- Seat – PCTFE
- Filter – 10 Micron 316L Stainless Steel
Specification
- Maximum Inlet Pressure -300 bar
- Outlet Pressure – 0-20 bar; 0-50 bar; 0-100 bar; 0-200 bar; 0-250 bar
- Gauges – 50mm Diameter
- Ports – ¼” NPT Female
- Temperature Range – -20°C to + 60°C
- Flow Coefficient (Cv) – 0.1
- Helium Leak Integrity – 1 x 10?9 mbar l/s
- Weight – 1.4 kg
How to order
Catalogue

Spec Master Single Stage Wall Mounted Point of Use Regulator (HPC6000 Series)
The Spec Master HPC6000 Series single stage diaphragm point of use regulators are designed for secondary pressure gas control of non-corrosive or non-toxic high purity gases up to grade 6.0 (99.9999%) on gas distribution systems.
HPC6001 Series – FKM Seals
HPC6002 Series – EPDM Seals
Features
- Isolation Valve
- Non-Return Valve
- Encapsulated Seat Design
- Full Range of Inlet & Outlet Fittings
- Wall Mounting
Materials
- Body – Nickel Plated Brass Barstock
- Bonnet – Nickel Plated Brass Barstock
- Diaphragm – 316L Stainless Steel
- Seal – PTFE
- Seat – PCTFE
- Filter – 10 Micron 316L Stainless Steel
Specification
- Maximum Inlet Pressure – 207 bar
- Outlet Pressure – 0-1.5 bar; 0-3.5 bar; 0-6 bar; 0-10 bar
- Gauges – 50mm Diameter
- Ports – ¼” NPT Female
- Temperature Range – -20°C to + 60°C
- Flow Coefficient (Cv) – 0.1
- Helium Leak Integrity – 1 x 10?9 mbar l/s
- Weight – 2.05 kg
How to order
Catalogue

Spec Master Single Stage High Pressure Wall Mounted Point of Use Regulator (HPC6200 Series)
The Spec Master HPC6200 Series single stage high pressure piston point of use regulators are designed for secondary pressure gas control of non-corrosive or non-toxic high purity gases up to grade 6.0 (99.9999%) on gas distribution systems.
HPC6201 Series – FKM Seals
HPC6202 Series – EPDM Seals
Features
- Isolation Valve
- Non-Return Valve
- Encapsulated Seat Design
- Full Range of Inlet & Outlet Fittings
- Wall Mounting
Materials
- Body – Nickel Plated Brass Barstock
- Bonnet – Nickel Plated Brass Barstock
- Piston – Brass
- Seal – FKM / EPDM
- Seat – PCTFE
- Filter – 10 Micron 316L Stainless Steel
Specification
- Maximum Inlet Pressure – 300 bar
- Outlet Pressure – 0-20 bar; 0-50 bar; 0-100 bar; 0-200 bar
- Gauges – 50mm Diameter
- Ports – ¼” NPT Female
- Temperature Range – -20°C to + 60°C
- Flow Coefficient (Cv) – 0.1
- Helium Leak Integrity – 1 x 10?9 mbar l/s
- Weight – 2.05 kg
How to order
Catalogue

Spec Master Diaphragm Outlet Points (HPU6300 Series)
Series diaphragm outlet points are designed for secondary pressure gas control of non-corrosive or toxic, high purity gases up to grade 6.0 purity (99.9999%), on gas distribution systems at the point of user control.
HPU6302 Series – Wall Mounting, 1/4 NPT Female Inlet, EPDM Seal
HPU6312 Series – Bench Mounting, 1/4 NPT Female Inlet, EPDM Seal
HPU6322 Series – Rear Mounting, 1/4 NPT Female Inlet, EPDM Seal
Features
- Ergonomic compact design
- Range of wall and bench mounting options
- Fully interchangeable within existing installations
- Pressure regulator with integrated shut-off function on both the inlet and the outlet
Materials
- Body – Brass Chrome Plated
- Diaphragm – Hastelloy C
- Shut-off Valve Seat – PCTFE
- Seat – EPDM
- Filter – 316L Stainless Steel
- Regulator Seal – PVDF
Specification
- Maximum Inlet Pressure – 40 bar (580 PSI)
- Delivery Pressure Range – 1.5 bar (22 PSI) – 3.5 bar (50 PSI) – 6 bar (90 PSI) – 10 bar (150 PSI)
- Inlet Ports – 1/4″ NPT Female
- Outlet Ports – 1/4″ NPT Female
- Temperature Range – -25° C to +70° C (-13° F to +160° F)
- Weight – 0.64 kg maximum
How to order
Catalogue
