Spring Loaded Check (Non-Return) Valves
Johnson Valves offer spring loaded check valves and spring assisted check valves. Our range includes in-line, disc, duel plate, double and swing type for a wide variety of duties and applications.
JV080001 – Brass Spring-Loaded Check (Non-Return) Valve – NBR Seals
JV080001 – Brass Spring-Loaded Check (Non-Return) Valve
An economical spring-loaded non-return valve with a brass body and NBR seals.
Type
Spring Loaded (In-Line)
Size & Connections
6mm (1/4″) to 100mm (4″) BSPP Female
Duty
Air • Inert Gas • Oil • Water
Materials
Brass Body • Acetal Disc • NBR Seals
Pressure Rating
6-25mm PN16 • 32-50mm PN10 • 65-100mm PN8
Temperature
-10°C to 110°C
T480Y – Bronze Nibco Spring-Loaded Check (Non-Return) Valve
Good quality spring loaded check (non-return) valve suitable for HVAC, steam and general purpose applications that can be installed in any orientation.
Type
Spring Loaded (In-Line)
Size & Connections
10mm (3/8″) to 50mm (2″) BSPT Female
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Bronze Body • PTFE Disc
Pressure Rating
17.2 Bar (dependent on temperature)
Temperature
-10°C to 178°C
JV080007 – DZR Brass WRAS Approved Spring-Loaded Check (Non-Return) Valve
A WRAS approved economical spring-loaded non-return valve with a DZR brass body and EPDM seals.
Type
Spring Loaded (In-Line)
Size & Connections
15mm (1/2″) to 50mm (2″) BSPP Female
Duty
Water
Materials
DZR Brass Body • Acetal Cartridge • EPDM Seals
Pressure Rating
PN16
Temperature
0°C to 85°C
Compliance & Approvals
WRAS (Floguard range)
JV080049 – Brass Spring-Loaded Check (Non-Return) Valve – Viton Seals
An economical spring-loaded non-return valve with a brass body and Viton seals.
Type
Spring Loaded (In-Line)
Size & Connections
6mm (1/4″) to 100mm (4″) BSPP Female
Duty
Air • Inert Gas • Oil • Water
Materials
Brass Body • Brass Disc • Viton Seals
Pressure Rating
6-25mm PN35 • 32-50mm PN25 • 65-100mm PN12
Temperature
-10°C to 110°C
JV080008 – DZR Brass WRAS Approved Double Check (Non-Return) Valve
A WRAS approved economical spring-loaded non-return valve with a DZR brass body and EPDM seals.
Type
Spring Loaded (In-Line) • Double Check
Size & Connections
15mm (1/2″) to 50mm (2″) BSPP Female
Duty
Water
Materials
DZR Brass Body • Acetal Cartridge • EPDM Seals
Pressure Rating
PN16
Temperature
0°C to 85°C
Compliance & Approvals
WRAS (Floguard range)
JV081001 – Stainless Steel Spring-Loaded Check (Non-Return) Valve
A good quality spring loaded check (non-return) valve with a stainless steel body and PTFE seals.
Type
Spring Loaded (In-Line)
Size & Connections
6mm (1/4″) to 100mm (4″) BSPP Female
Duty
Air • Inert Gas • Oil • Water
Materials
Stainless Steel Body & Disc • PTFE Seals
Pressure Rating
6-25mm PN82 • 32-40mm PN69 • 50-100mm PN62
Temperature
-25°C to 200°C (dependent on pressure)
JV081005 – Stainless Steel 3-Piece Spring Loaded Check (Non-Return) Valve
A robust stainless steel spring loaded 3-piece check (non-return) valve. Suitable for use in chemical and pharmaceutical industries, petrochemical industries, hydraulic installation, compressed air, steam and water systems.
Type
Spring Loaded (In-Line) • 3-Piece
Size & Connections
6mm (1/4″) to 100mm (4″) BSP Female
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Stainless Steel Body & Disc • PTFE Seals
Pressure Rating
PN63
Temperature
-20°C to 200°C (dependent on pressure)
Compliance & Approvals
ATEX II 2 GD c T2 Non-electrical Valves • 3.1 Material Certification (available on request)
JV080013 – Stainless Steel Wafer Spring Assisted Swing Check (Non-Return) Valve – NBR Seal
Stainless steel wafer swing type check valve with spring assisted closing, suitable for a wide range of applications particularly oil.
Type
Swing (Flap) • Spring Assisted
Size & Connections
DN32 to DN250 • Wafer – Between BS4504 PN6/10/16/25 & ANSI 150 Flanges
Duty
Air • Inert Gas • Oil • Water
Materials
Stainless Steel Body, Flap & Spring • Viton Seals
Pressure Rating
32-200mm PN25 • 250mm PN16
Temperature
-10°C to 100°C (dependent on pressure)
JV080014 – Stainless Steel Wafer Spring Assisted Swing Check (Non-Return) Valve – Viton Seal
Stainless steel wafer swing type check valve with spring assisted closing, suitable for various applications.
Type
Swing (Flap) • Spring Assisted
Size & Connections
DN32 to DN250 • Wafer – Between BS4504 PN6/10/16/25 & ANSI 150 Flanges
Duty
Air • Inert Gas • Oil • Water
Materials
Stainless Steel Body, Flap & Spring • Viton Seals
Pressure Rating
32-200mm PN25 • 250mm PN16
Temperature
-10°C to 150°C (dependent on pressure)
JV080015 – Stainless Steel Wafer Spring Assisted Swing Check (Non-Return) Valve – PTFE Seal
Stainless steel wafer swing type check valve with spring assisted closing, suitable for high-temperature applications.
Type
Swing (Flap) • Spring Assisted
Size & Connections
DN32 to DN250 • Wafer – Between BS4504 PN6/10/16/25 & ANSI 150 Flanges
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Stainless Steel Body, Flap & Spring • PTFE Seals
Pressure Rating
32-200mm PN25 • 250mm PN16
Temperature
-10°C to 200°C (dependent on pressure)
JV080017 – Ali-Bronze Marine Wafer Spring Assisted Swing Check (Non-Return) Valve – Length A
A marine quality aluminium bronze swing type check (non-return) valve generally used to prevent backflow in water and seawater systems.
Type
Swing (Flap) • Spring Assisted
Size & Connections
DN32 to DN500 • Wafer – Between BS4504 PN10/16 Flanges
Duty
Air • Inert Gas • Oil • Seawater • Water
Materials
Aluminium Bronze Body & Flap • Stainless Steel Spring • NBR Seals
Pressure Rating
32-150mm PN16 • 200-500mm PN10
Temperature
-10°C to 100°C
JV080019 – Ali-Bronze Marine Wafer Spring Assisted Swing Check (Non-Return) Valve – Length B
A marine quality aluminium bronze swing type check (non-return) valve with spring assisted closing, generally used to prevent backflow in water and seawater systems.
Type
Swing (Flap) • Spring Assisted
Size & Connections
DN40 to DN500 • Wafer – Between BS4504 PN10/16 Flanges
Duty
Air • Inert Gas • Oil • Seawater • Water
Materials
Aluminium Bronze Body & Flap • Stainless Steel Spring • NBR Seals
Pressure Rating
40-200mm PN16 • 250-300mm PN10/16 • 350-500mm PN10
Temperature
-40°C to 100°C
JV080020 – Brass Wafer Spring Assisted Disc Check (Non-Return) Valve – Metal Seat
An economical spring-loaded non-return valve with a brass body and a stainless steel disc.
Type
Disc • Spring Assisted
Size & Connections
DN15 to DN100 • Wafer – Between BS4504 PN16/25/40 Flanges
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Brass Body • Stainless Steel Disc & Spring
Pressure Rating
PN52
Temperature
-10°C to 300°C (dependent on pressure)
JV080021 – Stainless Steel Wafer Spring Assisted Disc Check (Non-Return) Valve – Metal Seat
An economical spring-loaded non-return valve with a stainless steel body and disc with a metal seat.
Type
Disc • Spring Assisted
Size & Connections
DN15 to DN100 • Wafer – Between BS4504 PN10/16/25/40. ANS1 150 & 300 Flanges
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Stainless Steel Body, Disc & Spring • Metal Seat
Pressure Rating
PN40
Temperature
0°C to 200°C (dependent on pressure)
JV080022 – Stainless Steel Wafer Spring Assisted Disc Check (Non-Return) Valve – EPDM Seat
An economical spring-loaded non-return valve with a stainless steel body and disc with an EPDM seat suitable for water applications.
Type
Disc • Spring Assisted
Size & Connections
DN15 to DN100 • Wafer – Between BS4504 PN10/16/25/40 ANS1 150 & 300 Flanges
Duty
Water
Materials
Stainless Steel Body, Disc & Spring • EPDM Seat
Pressure Rating
PN52
Temperature
0°C to 130°C (dependent on pressure)
JV080023 – Stainless Steel Wafer Spring Assisted Disc Check (Non-Return) Valve – NBR Seat
An economical spring-loaded non-return valve with a stainless steel body and disc with an NBR seat suitable for air & oil applications.
Type
Disc • Spring Assisted
Size & Connections
DN15 to DN100 • Wafer – Between BS4504 PN10/16/25/40. ANS1 150 & 300 Flanges
Duty
Air • Oil
Materials
Stainless Steel Body, Disc & Spring • NBR Seat
Pressure Rating
PN52
Temperature
0°C to 95°C (dependent on pressure)
JV080024 – Stainless Steel Wafer Spring Assisted Disc Check (Non-Return) Valve – Viton Seat
An economical spring-loaded non-return valve with a stainless steel body and disc with a Viton seat suitable for a wide range of applications.
Type
Disc • Spring Assisted
Size & Connections
DN15 to DN100 • Wafer – Between BS4504 PN10/16/25/40. ANS1 150 & 300 Flanges
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Stainless Steel Body, Disc & Spring • Viton Seat
Pressure Rating
PN52
Temperature
0°C to 200°C (dependent on pressure)
JV080025 – Stainless Steel Wafer Spring Assisted Disc Check (Non-Return) Valve – PTFE Seat
An economical spring-loaded non-return valve with a stainless steel body and disc with a Viton seat suitable for a wide range of applications.
Type
Disc • Spring Assisted
Size & Connections
DN15 to DN100 • Wafer – Between BS4504 PN10/16/25/40. ANS1 150 & 300 Flanges
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Stainless Steel Body, Disc & Spring • Viton Seat
Pressure Rating
PN52
Temperature
0°C to 200°C (dependent on pressure)
DCV3 (Supersedes DCV2) – Spirax Sarco Stainless Steel Wafer Disc Check (Non-Return) Valve
A high-quality (non-return) valve is suitable for use on a wide range of fluids for applications in process lines, hot water systems, steam and condensate systems etc. This valve can be supplied without spring for lower temperature duties down to -60°C.
Type
Disc • Spring Assisted
Size & Connections
DN15 to DN100 • Wafer – Between BS4504, ANSI, BST & JIS Flanges
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Stainless Steel Body, Disc & Spring • Metal Seat (Viton & EPDM Option)
Pressure Rating
PN40
Temperature
-60°C to 400°C (dependent on pressure & version)
Compliance & Approvals
EN 558 part 1, series 49
RK44 – Gestra Bronze Wafer Spring Assisted Disc Check (Non-Return) Valve – Metal Seat
A high-quality (non-return) valve is suitable for use on a wide range of fluids for applications in process lines, hot water systems, steam and condensate systems etc.
Type
Disc • Spring Assisted
Size & Connections
DN15 to DN100 • Wafer – Between BS4504, ANSI, BST & JIS Flanges
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Stainless Steel Body, Disc & Spring • Metal Seat
Pressure Rating
PN16
Temperature
-200°C to 230°C (dependent on pressure)
Compliance & Approvals
EN 558 part 1, table 11, series 49
JV081003 – Stainless Steel Wafer Spring Assisted Dual Plate Check (Non-Return) Valve – Metal Seat
Dual plated, spring-loaded non-return valve suitable for a wide range of applications.
Type
Dual Plate • Spring Assisted
Size & Connections
DN50 to DN300 • Wafer – Between BS4504 PN10/16, ANSI 150 & BST D/E Flanges
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Stainless Steel Body, Plates & Spring • Metal Seat
Pressure Rating
PN16
Temperature
-40°C to 180°C (dependent on pressure)
JV081004 – Stainless Steel Wafer Spring Assisted Dual Plate Check (Non-Return) Valve – Viton Seat
Dual plated, spring-loaded non-return valve with a length to DIN 3202-K3 / ISO 5752 long.
Type
Dual Plate • Spring Assisted
Size & Connections
DN40 to DN300 • Wafer – Between BS4504 PN10/16/25 Flanges
Duty
Air • Inert Gas • Oil • Water
Materials
Stainless Steel Body, Plates & Spring • Viton Seat
Pressure Rating
PN10
Temperature
-10°C to 150°C (dependent on pressure)
Compliance & Approvals
DIN 3202-K3 / ISO 5752 long
JV080031 – Stainless Steel Wafer Spring Assisted Dual Plate Check (Non-Return) Valve – Viton Seat
Dual plated, spring-loaded non-return valve with a length to EN 558 part 1.
Type
Dual Plate • Spring Assisted
Size & Connections
DN40 to DN300 • Wafer – Between BS4504 PN10/16/25 & ANSI 150 Flanges
Duty
Air • Inert Gas • Oil • Steam • Water
Materials
Stainless Steel Body, Plates & Spring • Viton Seat
Pressure Rating
PN25
Temperature
-20°C to 180°C (dependent on pressure)
Compliance & Approvals
EN 558 part 1
JV081007 – Ductile Iron Marine Wafer Spring Assisted Dual Plate Check (Non-Return) Valve – NBR Seat
A marine duty ductile iron, spring-loaded dual plate check valve with aluminium bronze flaps and NBR seats suitable for cold and hot water, seawater, fuel oil and other non-aggressive media.
Type
Dual Plate • Spring Assisted
Size & Connections
DN50 to DN600 • Wafer – Between BS4504 PN10/16 Flanges
Duty
Air • Inert Gas • Oil • Seawater • Water
Materials
Ductile Iron Body • Stainless Steel Spring • Ali-Bronze Plates • NBR Seat
Pressure Rating
50-200mm PN16 • 250-600mm PN10 (250-300mm PN16 on request)
Temperature
-40°C to 100°C
JV081016 – Cast Iron Wafer Spring Assisted Dual Plate Check (Non-Return) Valve – Length A
A WRAS approved epoxy coated cast iron, spring-loaded dual plate check valve with stainless steel flaps and EPDM seats suitable for water applications.
Type
Dual Plate • Spring Assisted
Size & Connections
DN50 to DN300 • Wafer – Between BS4504 PN10/16 & ANSI 150 Flanges
Duty
Water
Materials
Cast Iron Body • Stainless Steel Plates & Spring • EPDM Seat
Pressure Rating
PN16
Temperature
-10°C to 110°C
Compliance & Approvals
WRAS
JV081002 – Cast Iron Wafer Spring Assisted Dual Plate Check (Non-Return) Valve – Length B
A WRAS approved epoxy coated cast iron, spring-loaded dual plate check valve with stainless steel flaps and EPDM seats suitable for water applications.
Type
Dual Plate • Spring Assisted
Size & Connections
DN50 to DN600 • Wafer – Between BS4504 PN10/16 Flanges
Duty
Water
Materials
Cast Iron Body • Stainless Steel Plates & Spring • EPDM Seat
Pressure Rating
PN16
Temperature
-10°C to 120°C
Compliance & Approvals
WRAS (Series 5106W & 5306W)
JV080032 – Ali-Bronze Marine Wafer Spring Assisted Dual Plate Check (Non-Return) Valve – NBR Seat
A marine duty aluminium bronze, spring-loaded dual plate check valve an NBR seat suitable for cold and hot water, seawater, fuel oil and other non-aggressive media.
Type
Dual Plate • Spring Assisted
Size & Connections
DN50 to DN600 • Wafer – Between BS4504 PN10/16 Flanges
Duty
Air • Inert Gas • Oil • Seawater • Water
Materials
Aluminium Bronze Body & Plates • Stainless Steel Spring • NBR Seat
Pressure Rating
50-300mm PN16 • 350-600mm PN10
Temperature
-40°C to 100°C
JV081008 – Ali-Bronze Marine Wafer Spring Assisted Dual Plate Check (Non-Return) Valve – NBR Seat
A marine duty aluminium bronze, spring-loaded dual plate check valve an NBR seat suitable for fitting between PN6 flanges as well as PN10/16 & ANSI 150.
Type
Dual Plate • Spring Assisted
Size & Connections
DN50 to DN600 • Wafer – Between BS4504 PN6/10/16 & ANSI 150 Flanges
Duty
Air • Inert Gas • Oil • Seawater • Water
Materials
Aluminium Bronze Body & Plates • Stainless Steel Spring • NBR Seat
Pressure Rating
PN16
Temperature
-10°C to 90°C
JV081017 – Ductile Iron Spring Assisted Axial Disc Check (Non-Return) Valve
A WRAS approved epoxy coated cast iron, spring-loaded axial disc check valve with EPDM seats suitable for water applications offering good tightness at low differential pressures and can help to prevent water hammer.
Type
Duel Plate • Spring Assisted
Size & Connections
DN50 to DN300 • PN16 Flange
Duty
Water
Materials
Cast Iron Body • Stainless Steel Disc & Seat • EPDM Disc Ring
Pressure Rating
PN16
Temperature
-10°C to 120°C
Compliance & Approvals
WRAS (Series 5106 & 5306)
CVD – uPVC & ABS Spring-Loaded Check (Non-Return) Valve
Lightweight and economic spring-loaded check valve with EPDM seals suitable for water applications.
Type
Spring Loaded (In-Line)
Size & Connections
15mm (1/2″) to 50mm (2″) • Solvent Weld
Duty
Water
Materials
uPVC or ABS Body • EPDM Seals
Pressure Rating
uPVC: 16 Bar • ABS: 15 Bar
Temperature
0°C to 60°C
