srv
6000 – Atmospheric Discharge Compact Brass Safety Relief Valve
The 6000 is a high performance compact safety relief valve suitable for the protection of pressure tanks and systems for air and inert gas applications. They are also commonly used on small dental and hospital sterilising equipment Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Atmospheric Discharge • Compact • Pull Ring
Size & Connections
6mm (1/4″) BSP
Duty
Air Compressors & Systems • Inert Gases
Materials
Brass Body • Silicone Rubber Seat Seal
Set Pressure Range
1.8 to 20.1 bar
Temperature
-15°C to 180°C
Compliance & Approvals
BS6759 Part 2 • BSEN ISO 4126
500T – Nabic Temperature & Pressure Safety Relief Valve
The 500T pressure & temperature relief valve has been designed for use on unvented hot water supply systems, where protection against excess temperature is required in addition to pressure protection. Pressure and temperature elements of the valve operate independently, thereby providing dual safety protection in the one valve. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Pressure & Temperature Relief • Side Discharge • Easing Lever
Size & Connections
DN15 (3/4″ BSP) to DN50 (2 1/2″ BSP)
Duty
Hot Water
Materials
Bronze Body • PTFE Seat Seal (Viton option)
Set Pressure Range
0.69 to 12.5 bar (dependent on size)
Lift Temperature
Approx. 90°C to 95°C (preset, not adjustable)
Compliance & Approvals
BS6283 • BSEN ISO 4126 • WRAS (1 bar and above)
500 – Nabic High Capacity, High Lift Safety Relief Valve
The Nabic 500 safety valve is an extremely versatile valve, suitable for use on hot water, steam or air. Although designed primarily or use on un-vented hot water heating systems, where a high capacity, emergency steam relief capability is required, it is also an ideal general purpose safety valve. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
High Capacity • Full Lift • Side Discharge • Lifting Lever
Size & Connections
15mm (1/2″) to 65mm (2 1/2″) BSP Female
Duty
Air • Oil • Inert Gasses • Steam • Water
Materials
Bronze Body • PTFE Seat Seal (Viton option)
Set Pressure Range
0.69 to 12.5 bar (dependent on size)
Temperature
-20°C to 195°C
Compliance & Approvals
BS6759 • BSEN ISO 4126 • WRAS (1 bar and above)
542 – Nabic Safety Relief Valve
The Nabic 542 safety valve is an extremely versatile valve, suitable for use on hot water, steam or air. Although designed primarily for protection of hot water boilers, it’s wide range of applications make it an ideal general purpose safety valve. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Standard Capacity • Side Discharge • Lifting Lever
Size & Connections
15mm (1/2″) to 80mm (3″) BSP Female
Duty
Air • Oil • Inert Gasses • Steam • Water
Materials
Bronze Body • PTFE Seat Seal (Viton option)
Set Pressure Range
0.55 to 10.5 bar (dependent on size)
Temperature
-20°C to 195°C
Compliance & Approvals
BS6759 • BSEN ISO 4126 • WRAS (1 bar and above)
355 – Goetze Cast Iron Safety Relief Valve – Flanged
The Goetze 355 safety relief valve has a cast iron body with various seal options. This valve can be supplied either with open or closed cap. There is also an option with a bellows assembly. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Side Discharge • Lever or Dome Top • Optional Bellows
Size & Connections
DN15 to DN100 • Flanged PN40 x 16
Duty
Air • Oil • Inert Gasses • Steam • Water
Materials
Cast Iron Body & Spring Housing • St. St. Disc (EPDM, FKM, FFKM & PTFE option)
Set Pressure Range
0.2 to 40 bar
Temperature
Stainless Steel Disc : -10°C to 350°C (see datasheet for other materials)
Compliance & Approvals
TÜV Test Approval 2094 • BSEN ISO 4126-1
455 – Goetze Stainless Steel Safety Relief Valve – Flanged
The Goetze 355 safety relief valve has a stainless steel body with various seal options. This valve can be supplied either with open or closed cap. There is also an option with a bellows assembly. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Side Discharge • Lever or Dome Top • Optional Bellows
Size & Connections
DN15 to DN100 • Flanged PN40 x 16
Duty
Air • Oil • Inert Gasses • Steam • Water
Materials
St. St. Body & Spring Housing • St. St. Disc (EPDM, FKM, FFKM & PTFE option)
Set Pressure Range
0.2 to 40 bar
Temperature
Stainless Steel Disc : -60°C to 400°C (see datasheet for other materials)
Compliance & Approvals
TÜV Test Approval 2094 • BSEN ISO 4126-1
852 – Goetze Bronze Safety Relief Valve – Flanged
The Goetze 852 safety relief valve has a bronze body with various seal options making it suitable for various duties including seawater. This valve can be supplied either with open or closed cap. There is also an option with a bellows assembly. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Side Discharge • Lever or Dome Top • Optional Bellows
Size & Connections
DN40 to DN50 • Flanged PN40 x 16
Duty
Air • Oil • Inert Gasses • Seawater • Steam • Water
Materials
Bronze Body & Spring Housing • NBR Disc (SS, EPDM, FKM, FFKM & PTFE option)
Set Pressure Range
0.5 to 25 bar
Temperature
NBR Disc : -30°C to 130°C (see datasheet for other materials)
Compliance & Approvals
TÜV Test Approval 2007 • BSEN ISO 4126-1
418 – Goetze Side Discharge Stainless Steel Overflow & Pressure Control Valve
The 418 overflow and pressure control valve is designed for pump protection and bypass control applications. User pressure adjustment is achievable on site or this valve can be set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Side Discharge • Overflow & Pressure Control • Gas Tight Dome
Size & Connections
10mm (3/8″) to 32mm (1 1/4″) BSP
Duty
Air • Inert Gases • Oil • Steam • Water
Materials
Stainless Steel Body • PTFE Disc (NBR & FKM option)
Set Pressure Range
0.2 to 0.8 bar • 0.5 to 12 bar • 12 to 20 bar (PTFE disc only)
Temperature
PTFE Disc : -60°C to 225°C • NBR Disc : -30°C to 130°C • FKM Disc : -20°C to 200°C
Compliance & Approvals
Lloyds, DNV, BV, ABS & GL Type Approved
413 – Goetze Atmospheric Discharge With Safety Shroud Stainless Steel Safety Relief Valve
The 413 is a quality, high performance safety relief valve suitable for the protection of pressure tanks and systems for air and inert gas applications. The valve has a shroud fitted which provides extra safety when relieving media with liquid, granular or dusty particles. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Atmospheric Discharge • Safety Stroud
Size & Connections
15mm (1/2″) to 50mm (2″) BSP
Duty
Air Compressors & Systems • Inert Gases • Granula & Dusty Media
Materials
Stainless Steel Body • FKM Seat Seal (PTFE option)
Set Pressure Range
0.2 to 6 bar
Temperature
FKM Seal : -20°C to 200°C • PTFE Seal : -60°C to 225°C
Compliance & Approvals
BS6759 Part 2 • TÜV • BSEN ISO 4126
412 – Goetze Atmospheric Discharge High Performance Stainless Steel Safety Relief Valve
The 412 is a quality, high performance safety relief valve suitable for the protection of pressure tanks and systems for air and inert gas applications. This valve has a high discharge rate making it suitable for high capacity applications. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Atmospheric Discharge suitable for air compressor duties
Size & Connections
15mm (1/2″) to 50mm (2″) BSP
Duty
Air Compressors & Systems • Inert Gases
Materials
Stainless Steel Body • FKM Seat Seal (<30 bar) • PTFE Seat Seal (30> bar)
Set Pressure Range
15mm-40mm : 0.2 to 50 bar • 50mm : 0.2 to 30 bar
Temperature
FKM Seal : -20°C to 200°C • PTFE Seal : -60°C to 225°C
Compliance & Approvals
BS6759 Part 2 • TÜV • BSEN ISO 4126
618 – Goetze Side Discharge Bronze Overflow & Pressure Control Valve
The 618 overflow and pressure control valve is designed for pump protection and bypass control applications. User pressure adjustment is achievable on-site or this valve can be set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Side Discharge • Overflow & Pressure Control • Gas Tight Dome
Size & Connections
10mm (3/8″) to 50mm (2″) BSP
Duty
Air • Inert Gases • Oil • Steam • Water
Materials
Bronze Body • PTFE Disc (NBR & FKM option)
Set Pressure Range
0.2 to 0.8 bar • 0.5 to 12 bar • 12 to 20 bar (PTFE disc only)
Temperature
PTFE Disc : -60°C to 225°C • NBR Disc : -30°C to 130°C • FKM Disc : -20°C to 200°C
Compliance & Approvals
Lloyds, DNV, BV, ABS & GL Type Approved
813 – Goetze Atmospheric Discharge With Safety Shroud Brass Safety Relief Valve
The 813 is a quality, high performance safety relief valve suitable for the protection of pressure tanks and systems for air and inert gas applications. The valve has a shroud fitted which provides extra safety when relieving media with liquid, granular or dusty particles. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Atmospheric Discharge • Safety Stroud
Size & Connections
15mm (1/2″) to 50mm (2″) BSP
Duty
Air Compressors & Systems • Inert Gases • Granula & Dusty Media
Materials
Brass Body • FKM Seat Seal (PTFE option)
Set Pressure Range
0.2 to 6 bar
Temperature
FKM Seal : -20°C to 200°C • PTFE Seal : -60°C to 225°C
Compliance & Approvals
BS6759 Part 2 • TÜV • BSEN ISO 4126
812 – Goetze Atmospheric Discharge High Performance Brass Safety Relief Valve
The 812 is a quality, high performance safety relief valve suitable for the protection of pressure tanks and systems for air and inert gas applications. This valve has a high discharge rate making it suitable for high capacity applications. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Atmospheric Discharge suitable for air compressor duties
Size & Connections
15mm (1/2″) to 50mm (2″) BSP
Duty
Air Compressors & Systems • Inert Gases
Materials
Brass Body • FKM Seat Seal (<30 bar) • PTFE Seat Seal (30> bar)
Set Pressure Range
15mm-40mm : 0.2 to 50 bar • 50mm : 0.2 to 30 bar
Temperature
FKM Seal : -20°C to 200°C • PTFE Seal : -60°C to 225°C
Compliance & Approvals
BS6759 Part 2 • TÜV • BSEN ISO 4126
810 – Goetze Atmospheric Discharge Brass Safety Relief Valve
The 810 safety relief valve is suitable for the protection of pressure tanks and systems for air and inert gas applications. The valve has a high discharge capacity making it possible to use this small and inexpensive safety relief valve, even for large pressure tanks. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Atmospheric Discharge suitable for air compressor duties
Size & Connections
6mm (1/4″) to 50mm (2″) BSP
Duty
Air Compressors & Systems • Inert Gases
Materials
Brass Body • FKM Seat Seal (<25 bar) • PTFE Seat Seal (25> bar)
Set Pressure Range
6mm-25mm : 0.2 to 50 bar • 32mm-50mm : 0.2 to 16 bar
Temperature
FKM Seal : -20°C t 200°C • PTFE Seal : -60°C to 225°C
Compliance & Approvals
BS6759 Part 2 • TÜV • BSEN ISO 4126
746 – Bailey Birkett High Capacity Full Lift Carbon or Stainless Steel Safety Relief Valve
The 746 combination of top guiding, unobstructed seat bore and full lift capability ensures the highest possible discharge rate. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
High Capacity • Full Lift • Side Discharge • Lever, Packed Lever or Dome Top
Size & Connections
DN25 to DN100 • Flanged PN1640, ANSI 150/300*
Duty
Air • Inert Gases • Oil • Process Liquids • Steam • Water
Materials
Carbon or Stainless Steel Body • Stainless Steel Disc (EPDM, FKM or PTFE option)
Set Pressure Range
0.35 up to 40 bar (dependent on size)
Temperature
Stainless Steel Disc : -46°C to 427°C (see data sheet for others)
Compliance & Approvals
BS6759 Part 1, 2 & 3 (dependent on duty) • ASME VIII/TUV-AD Merkblatt A2 (on request)
* Dependent on series, specify when enquiring
723 / 726 / 733 / 736 – Bailey Birkett Double High Lift Cast Steel Safety Relief Valve
The 720 and 730 series of double (twin) high lift safety valves combine a top guided design, to provide an unobstructed seat bore, with a floating disc that aligns correctly under all working conditions. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Double (Twin) Pot • High Lift • Side Discharge • Lever (726/736) or Dome Top (723/733)
Size & Connections
DN40 to DN100 • Flanged PN16/25/40, ANSI 150/300, BS10 E/F/H*
Duty
Air • Inert Gases • Oil • Process Liquids • Steam • Water
Materials
Cast Steel Body & Bonnet • Stainless Steel Disc
Set Pressure Range
683/686 : 0.25 to 13 bar • 693/696 : 0.25 to 13 bar
Temperature
-20°C to 230°C
Compliance & Approvals
BS6759 Part 1, 2 & 3 (dependent on duty)
* Dependent on series, specify when enquiring
683 / 686 / 693 / 696 – Bailey Birkett Single High Lift Cast Steel Safety Relief Valve
The 680 and 690 series of single high lift safety valves combine a top guided design, to provide an unobstructed seat bore, with a floating disc that aligns correctly under all working conditions. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Single Pot • High Lift • Side Discharge • Lever (686/696) or Dome Top (683/693)
Size & Connections
DN40 to DN100 • Flanged PN16/25/40, ANSI 150/300, BS10 E/F/H*
Duty
Air • Inert Gases • Oil • Process Liquids • Steam • Water
Materials
Cast Steel Body & Bonnet • Stainless Steel Disc
Set Pressure Range
683/686 : 0.25 to 13 bar • 693/696 : 0.25 to 13 bar
Temperature
-20°C to 230°C
Compliance & Approvals
BS6759 Part 1, 2 & 3 (dependent on duty)
* Dependent on series, specify when enquiring
480 / 485 / 490 – Bailey Birkett By-Pass & Relief Valve
For use with positive displacement pumps either of the rotary or reciprocating type and have been used successfully with water. It can also be used as a relief or combined relief and bypass valve and can be modified to operate as an integral pump by-pass relief valve. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
By-Pass • Side Discharge • Dome Top
Size & Connections
20mm (3/4″) to 80mm (3″) BSP Threaded
Duty
Most Liquids that are compatible with materials
Materials
Bronze Body (480 & 485) • Stainless Steel Body (490)
Set Pressure Range
0.35 to 24 bar (dependent on size)
Temperature
Bronze: -20°C to 120°C • Stainless Steel: -20°C to 200°C
Compliance & Approvals
BS6759 Part 3
716T – Bailey Birkett Pressure & Temperature Safety Relief Valve
The 716T protects unvented hot water systems, against both excess pressure and excess temperature. Increasing pressure is sensed by the spring, which automatically opens the relief valve at the pre-set pressure and the integral probe independently monitors increases in temperature, safely opening the relief valve. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Pressure & Temperature Relief • Side Discharge • Easing Lever
Size & Connections
20mm (3/4″) to 50mm (2″) BSP
Duty
Hot Water
Materials
Bronze Body • DZR Brass Internals • Silicone Trim
Set Pressure Range
2.4 to 10.3 bar
Lift Temperature
Approx. 90°C to 95°C (preset, not adjustable)
Compliance & Approvals
EN14890 • BS6283 • WRAS
716 – Bailey Birkett High Capacity Full Lift Safety Relief Valve
The 716 range of safety relief valves offer protection against over pressure on boilers, compressors, pressure vessels, process pipelines and pressurised equipment. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
High Capacity • Full Lift • Side Discharge • Lever or Dome Top
Size & Connections
15mm (1/2″) to 50mm (2″) • BSP/NPT • Flanged PN16/25, ANSI 150, BS10 E/F/H*
Duty
Air • Inert Gases • Oil • Process Liquids • Steam • Water (dependent on trim)
Materials
Bronze Body • Aflas, EPDM or Stainless Steel Disc
Set Pressure Range
0.35 to 32 bar (dependent on size & duty)
Temperature
Aflas Disc: -29°C to 200°C • EPDM Disc: -29°C to 150°C • SS Disc: -29°C to 220°C
Compliance & Approvals
BS6759 Part 1, 2 & 3 (dependent on duty) • BSEN ISO 4126 Part 1
* Flanged inlet x Screwed outlet only, specify when enquiring
707 – Bailey Birkett High Lift Safety Relief Valve
The 707 range of safety relief valves offer protection against over pressure on boilers, compressors, pressure vessels, process pipelines and pressurised equipment. Supplied set to your requirements with a certificate confirming lift pressure at no additional cost.
Type
Standard Capacity • High Lift • Side Discharge • Lever or Dome Top
Size & Connections
15mm (1/2″) to 50mm (2″) • BSP/NPT FxF or MxF • Flanged PN25, ANSI 150, BS10 H*
Duty
Air • Inert Gases • Oil • Process Liquids • Steam • Water (dependent on trim)
Materials
Bronze Body • Aflas, EPDM or Stainless Steel Disc
Set Pressure Range
0.35 to 24 bar
Temperature
Aflas Disc: -20°C to 200°C • EPDM Disc: -20°C to 95°C • SS Disc: -20°C to 224°C
Compliance & Approvals
BS6759 Part 1, 2 & 3 (dependent on duty) • BSEN ISO 4126 Part 1 • WRAS (EPDM disc)
* Flanged inlet x Screwed outlet only, specify when enquiring
Wade Safety Relief Valves
Wade air safety relief valves are available on an ex-stock basis with either atmospheric or side outlet discharge – sealed leak proof tops or lift testing gear.
Nabic Safety Relief Valves
