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There are 44 products
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check valves

Check valves (also called non-return valve, one-way valve) are used to allow the flow of fluid in only one direction. They prevent the flow of fluid in the other direction.  Check valves work automatically and do not need to be operated. Most... Read more Read more

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There are 44 products
Show 44 products
Relevance arrow_drop_down Name, A to Z arrow_drop_up Name, Z to A arrow_drop_down Price, low to high arrow_drop_up Price, high to low arrow_drop_down Connection size arrow_drop_up Connection size arrow_drop_down Material arrow_drop_up Material arrow_drop_down Seal material arrow_drop_up Seal material arrow_drop_down Valve shape arrow_drop_up Valve shape arrow_drop_down Material quality arrow_drop_up Material quality arrow_drop_down Min pressure difference (bar) arrow_drop_up Min pressure difference (bar) arrow_drop_down Article compression class arrow_drop_up Article compression class arrow_drop_down Connection type arrow_drop_up Connection type arrow_drop_down Kv value (m3/h) arrow_drop_up Kv value (m3/h) arrow_drop_down Max pressure at 20 °C (bar) arrow_drop_up Max pressure at 20 °C (bar) arrow_drop_down With strainer basket arrow_drop_up With strainer basket arrow_drop_down Min temperature (°C) arrow_drop_up Min temperature (°C) arrow_drop_down Max temperature (°C) arrow_drop_up Max temperature (°C) arrow_drop_down With lock spring arrow_drop_up With lock spring arrow_drop_down With balance weight arrow_drop_up With balance weight arrow_drop_down Brand arrow_drop_up Brand arrow_drop_down
Product Brand Connection size Material Seal material Valve shape Min pressure difference (bar) Connection type Article compression class Kv value (m3/h) Max pressure at 20 °C (bar) Min temperature (°C) Max temperature (°C) With lock spring With balance weight Surface protection Valve bore (mm) Model Height (mm) Width (mm) With strainer basket Material quality
G1/4'' check valve...

G1/4'' check valve (0.1-10bar) brass FKM

AZVNRT-1-4

£5.85 (£4.84 excl vat)
In stock
AZ Pneumatics 1/4 inch Brass FKM (FPM) Inline spring closed 0.1 Inner thread cylindrical... PN 10 0.82 10 0 110 Yes No Untreated 7 Straight 34 13 - -
G1/2'' Brass Check Valve...

G1/2'' Brass Check Valve NBR PN12 - CLIB

CLIB-012

£7.69 (£6.36 excl vat)
In stock
Tameson 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 12 4.22 12 -20 100 Yes No Untreated - Straight 47 34.5 - -
G1/8'' check valve...

G1/8'' check valve (0.1-10bar) brass FKM

AZVNRT-1-8

£4.70 (£3.89 excl vat)
In stock
AZ Pneumatics 1/8 inch Brass FKM (FPM) Inline spring closed 0.1 Inner thread cylindrical... PN 10 0.45 10 0 110 Yes No Untreated 5.2 Straight 39 16 - -
G1'' Brass Check Valve NBR...

G1'' Brass Check Valve NBR PN12 - CLIB

CLIB-100

£12.29 (£10.16 excl vat)
In stock
Tameson 1 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 12 11.67 12 -20 100 Yes No Untreated - Straight 60.5 47.5 - -
G1'' Brass Foot Valve NBR...

G1'' Brass Foot Valve NBR 0.02 bar

CLIB-FCM-100

£15.78 (£13.04 excl vat)
In stock
Tameson 1 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... - - - -20 60 - - - - - - - Yes -
G3/4'' Brass Check Valve...

G3/4'' Brass Check Valve NBR PN12 - CLIB

CLIB-034

£9.87 (£8.16 excl vat)
In stock
Tameson 3/4 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 12 7.92 12 -20 100 Yes No Untreated - Straight 53 42 - -
G1/2'' Stainless Steel 304...

G1/2'' Stainless Steel 304 Check Valve FKM 0.25-16bar -...

CLIS3-012

£34.59 (£28.59 excl vat)
In stock
Tameson 1/2 inch Stainless steel FKM (FPM) Inline spring closed 0.25 Inner thread cylindrical... PN 16 - 16 -20 150 Yes No Untreated - Straight 32 66 - Stainless steel 304 (1.4301)
G1/2'' Brass Foot Valve NBR...

G1/2'' Brass Foot Valve NBR 0.02 bar

CLIB-FCM-012

£9.79 (£8.09 excl vat)
In stock
Tameson 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... - - - -20 60 - - - - - - - Yes -
G1'' Stainless Steel 304...

G1'' Stainless Steel 304 Check Valve FKM 0.35-16bar - CLIS3

CLIS3-100

£37.92 (£31.34 excl vat)
In stock
Tameson 1 inch Stainless steel FKM (FPM) Inline spring closed 0.35 Inner thread cylindrical... PN 16 - 16 -20 150 Yes No Untreated - Straight 55 83 - Stainless steel 304 (1.4301)
G3/8'' Brass Check Valve...

G3/8'' Brass Check Valve NBR PN12 - CLIB

CLIB-038

£8.26 (£6.83 excl vat)
In stock
Tameson 3/8 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 12 2.11 12 -20 100 Yes No Untreated - Straight 46.5 34.5 - -
G3/4'' Stainless Steel 304...

G3/4'' Stainless Steel 304 Check Valve FKM 0.35-16bar -...

CLIS3-034

£34.47 (£28.49 excl vat)
In stock
Tameson 3/4 inch Stainless steel FKM (FPM) Inline spring closed 0.35 Inner thread cylindrical... PN 16 - 16 -20 150 Yes No Untreated - Straight 45 72 - Stainless steel 304 (1.4301)
G3/8'' Stainless Steel 304...

G3/8'' Stainless Steel 304 Check Valve FKM 0.25-16bar -...

CLIS3-038

£29.88 (£24.69 excl vat)
In stock
Tameson 3/8 inch Stainless steel FKM (FPM) Inline spring closed 0.25 Inner thread cylindrical... PN 16 - 16 -20 150 Yes No Untreated - Straight 32 66 - Stainless steel 304 (1.4301)
G1'' Stainless Steel 316 Y...

G1'' Stainless Steel 316 Y Check Valve PTFE 0.4/0.8-40bar...

CLYS-100

£87.34 (£72.18 excl vat)
In stock
Tameson 1 inch Stainless steel Teflon (PTFE) Angle seat spring closed 0.4 Inner thread cylindrical... PN 40 - 40 -20 200 Yes No Untreated 22.5 Straight 75 90 - Stainless steel 316 (1.4408)
G1-1/4'' Brass Check Valve...

G1-1/4'' Brass Check Valve NBR PN10 - CLIB

CLIB-114

£19.42 (£16.05 excl vat)
In stock
Tameson 1 1/4 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 10 22.42 10 -20 100 Yes No Untreated - Straight 66.5 59.5 - -
G1-1/2'' Brass Check Valve...

G1-1/2'' Brass Check Valve NBR PN10 - CLIB

CLIB-112

£31.60 (£26.12 excl vat)
In stock
Tameson 1 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 10 29.39 10 -20 100 Yes No Untreated - Straight 74 70.5 - -
check valves

check valves

Check valves (also called non-return valve, one-way valve) are used to allow the flow of fluid in only one direction. They prevent the flow of fluid in the other direction.  Check valves work automatically and do not need to be operated. Most available types have a small spring to close the valve, the medium pressure in the forward direction opens the valve. Note that there is a minimum pressure required to open the valve (usually called cracking pressure).