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Custom Seawater Pn16 Small Dn40 Silicone Sea Epdm Rubber Flanged Duckbill Check Valve
$12.00 - $18.00
Min. Order: 1 piece
5.0/5.0·20 reviews·"Good service"
China Manufacturers Custom Wholesale Dsg 01 Yuken Hydraulic Directional Solenoid Valve Pressure Flow Control Valve5.0/5.0·5 reviews·"good business"
$18.80
Min. Order: 5 boxes
Shipping per piece: $9.87
Check Valve Product Nuzhuo DN50 Stainless Steel/Cast Steel/CF8/WCB Flange Slient Check Valve Flow Control Valve
$46.10 - $48.50
Min. Order: 1 piece
0.0/5.0·0 reviews
Valve Valve Accessories For Water Swimming Pool China Hot Sell Pvc Union Valve Double Union Valve Slip4.9/5.0·5 reviews·"Fast delivery"
$2.00 - $5.00
Min. Order: 10 pieces
Shipping per piece: $11.24
DN25-300 T856 4-20mA Flow Pneumatic Diaphragm Single Sealing New Sleeve Control Valve Flange Globe Valve4.8/5.0·3 reviews·"Good supplier"
$460.00
Min. Order: 1 piece
Shipping per piece: $2,000.00
Type Swing Check Valve BS Cast Iron Swing Check Valve With Lever Weight
$80.00 - $100.00
Min. Order: 5 pieces
5.0/5.0·4 reviews·"fast shipping"
light weight simple female threaded vertical check valve with strainers one way check valves to prevent back flow0.0/5.0·0 reviews
$1.20 - $3.60
Min. Order: 2000 pieces
Shipping per piece: $1.64
In Stock Low MOQ 1/2 inch Back flow preventer Swing brass Check Valve5.0/5.0·1 reviews·"customer service"
$1.35 - $1.55
Min. Order: 50 pieces
Shipping per piece: $16.00
Brass Non Return One Way Check Valves Thread Back flow Prevention Spring Check Valve0.0/5.0·0 reviews·"good business"
$1.80
Min. Order: 2 pieces
Shipping per piece: $43.74
JU 5/32" 4mm 1 Way Back Flow Preventer Plastic Spring Loaded Check Water Air Non Return Valve5.0/5.0·37 reviews·"customer service"
Ready to Ship
$0.75 - $1.30
Min. Order: 25 pieces
Shipping per piece: $0.66
3/4" Female Thread Horizontal Swing Brass Check Valve to Prevent Water Back flow4.4/5.0·2 reviews·"professional supplier"
$2.00
Min. Order: 1000 pieces
Shipping per piece: $0.32
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Manufacturers dn50 size PN10 PN16 pressure control water prevent back flow piston check valve
$28.00 - $30.00
Min. Order: 100 pieces
4.8/5.0·2 reviews·"good packaging"
Qinfeng Sanitary Stainless Steel 304/316L Weld Vertical Check Valve for Pipe Line Back Flow Prevention
$18.57 - $78.57
Min. Order: 2 pieces
5.0/5.0·12 reviews·"Excellent service"
Sanitary Stainless Steel 304/316L clamp Vertical Check Valve for Pipe Line Back Flow Prevention4.9/5.0·15 reviews·"quality delivery"
$30.00 - $35.00
Min. Order: 10 sets
Shipping per piece: $0.00
China Supplier One-Way Non-Return Swing Check Valve Prevent Water Back flow Female Thread Brass Horizontal Check Valve5.0/5.0·3 reviews·"Reliable supplier"
$1.90 - $2.30
Min. Order: 999 pieces
Shipping per piece: $0.36
Ifan Manufacturer Brass Thread Check Valve 1/2inch Spring Check Valve To Prevent Back Flow
$1.55 - $1.61
Min. Order: 180 pieces
4.9/5.0·12 reviews·"Excellent supplier"
LIRLEE Manufacturer Brass Thread Check Valve 1/2inch Spring Check Valve To Prevent Back Flow4.8/5.0·5 reviews·"fast delivery"
$0.80 - $2.18
Min. Order: 100 pieces
Shipping per piece: $13.82
Female thread vertical Brass Check Valve one way check valve to prevent back flow5.0/5.0·1 reviews
$1.50 - $48.60
Min. Order: 1 piece
Shipping per piece: $14.06
1/8" Plastic duckbill check valve 3.2mm PP body Small non-return valve One-way check valve KH-CBPF2 DGOzone5.0/5.0·6 reviews·"Fast shipping"
Ready to Ship
$2.30 - $2.60
Min. Order: 2 pieces
Shipping per piece: $14.39
wholesale factory manufacture check valves carbon steel hydraulic flanged swing check valve5.0/5.0·1 reviews
$0.10
Min. Order: 1 piece
Shipping per piece: $47.45
ductile iron flange slow closing check valve
$15.00 - $600.00
Min. Order: 1 piece
0.0/5.0·0 reviews·"good service"
Brass check valve brass with spring to prevent back flow
$1.25 - $3.55
Min. Order: 99 units
5.0/5.0·3 reviews·"good service"
new design quick closing no return,low pressure loss check valve Cast Iron Body Flange Silencing Check Valve
$399.00 - $439.00
Min. Order: 1 piece
5.0/5.0·16 reviews·"fast delivery"
1/2" to 2 inch NPT thread brass insert vertical check valve with plastic core
$1.15 - $30.50
Min. Order: 100 pieces
5.0/5.0·1 reviews·"great supplier"
2 inch a216 wcb swing check valve for oil industry0.0/5.0·0 reviews
Ready to Ship
$45.00
Min. Order: 1 set
Shipping per piece: $39.54
TMOK 1" DN25 Female Brass Horizontal Check Valve One-Way Non-Return Swing Check Valve5.0/5.0·2 reviews·"Good Service"
Ready to Ship
$1.79 - $3.45
Min. Order: 20 pieces
Shipping per piece: $1.89
DIN3202 Automatic Swing Check Valve for Pipeline Back Flow
$20.00 - $50.00
Min. Order: 50 pieces
5.0/5.0·11 reviews·"Fast delivery"
CF8 CF8M WCB lift style flanged check valve non-return valve0.0/5.0·0 reviews
Ready to Ship
$10.90
Min. Order: 1 piece
Shipping per piece: $43.73
HS41X flange Anti-fouling closing back-flow prevent-or water valve DN32-1000
$38.60 - $250.00
Min. Order: 2 pieces
4.7/5.0·34 reviews·"prompt delivery"
DN20 water meter plastic check valve back flow preventer4.8/5.0·3 reviews·"fast delivery"
$0.25
Min. Order: 10000 pieces
Shipping per piece: $600.01
OEM/ODM Medical Spring Check Valve 1/8\" 3.2mm Plastic PP Body Silicone Duckbill One-Way None Return for Water Gas Customizable5.0/5.0·12 reviews·"fast shipping"
Ready to Ship
$0.80 - $1.30
Min. Order: 100 pieces
Shipping per piece: $0.17
Good Use Plastic Check Valve Preventing Water Flow Back to Ozone Generator
$1.70 - $1.90
Min. Order: 1 piece
5.0/5.0·2 reviews·"Fast shipping"
brass Vertical check valve for water and gas use Check valve
$0.80 - $2.00
Min. Order: 2 pieces
5.0/5.0·13 reviews·"excellent service"
OEM Small Mini Air Drink Bottle Control Two Way Plastic Medical Check Valve
$0.35 - $0.95
Min. Order: 500 pieces
4.8/5.0·3 reviews·"Perfect after sales"
Small Silicone Rubber Duckbill Valve Low Pressure Non Return Umbrella Munshroom Breathing Valve Flow Control Dispensing Valve4.9/5.0·6 reviews·"Good service"
Ready to Ship
$0.22 - $0.28
Min. Order: 500 pieces
Shipping per piece: $0.04
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About back flow check valve
222 back flow check valve products are offered for sale by suppliers on Alibaba.com, of which check valves accounts for 54%, valves（old） accounts for 2%, and hydraulic valves accounts for 1%.
A wide variety of back flow check valve options are available to you, such as pressure, manual and hydraulic.You can also choose from normal temperature, medium temperature and high temperature back flow check valve,as well as from water, gas, and oil back flow check valve, and whether back flow check valve is steel, stainless steel, or iron.