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    19 Products

    Threaded Check Valves for Vacuum

    Prevent vacuum loss with these airtight, leakproof valves. They open to allow flow in one direction and close when flow stops or reverses.
    Anodized Aluminum Body
    Image of Product. Front orientation. Check Valves. Threaded Check Valves for Vacuum.
    Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    End-to-End
    Lg.
    Mounting Position
    Vacuum Rating,
    in. Hg
    For Use
    With
    Ball
    Material
    Spring
    Material
    Seal
    Material
    Each
    NPT Female Inlet × NPT Female Outlet
    1/4 1.15230 psi @ 200° F0.280 to 2001 3/8"Any Angle, Horizontal, Vertical0.58AirAcetal
    		Stainless Steel
    		Buna-N
    		1878N1000000
    3/8 4.7230 psi @ 200° F0.30 to 2002 1/8"Any Angle, Horizontal, Vertical0.6AirAcetal
    		Stainless Steel
    		Buna-N
    		1878N200000
    1/2 4.7230 psi @ 200° F0.30 to 2002 1/8"Any Angle, Horizontal, Vertical0.6AirAcetal
    		Stainless Steel
    		Buna-N
    		1878N500000
    1 1/4 28230 psi @ 200° F0.070 to 2003 3/8"Any Angle, Horizontal, Vertical0.14AirAcetal
    		Stainless Steel
    		Buna-N
    		1878N300000
    263230 psi @ 200° F0.170 to 2005"Any Angle, Horizontal, Vertical0.35AirAcetal
    		Stainless Steel
    		Buna-N
    		1878N4000000
     

    Screw-In Hydraulic Check Valves

    These hydraulic check valves open to allow flow in one direction and close when flow stops or reverses. Also known as cartridge valves, they screw into your mounting block.
    Ball Check Valve
    Image of Product. Front orientation. Hydraulic Check Valves. Screw-In Hydraulic Check Valves.
    Body—UN/UNF
    (SAE Straight)
    Deltrol Equivalent
    Model No.
    Hydraforce Equivalent
    Model No.
    Parker Equivalent
    Model No.
    Thread
    Size
    Dash
    Size
    Max. Flow
    Rate, gpm
    Flow Coefficient
    (Cv)
    Max. Pressure,
    psi
    Min. Opening
    Pressure, psi
    Seal
    Material
    Overall
    Ht.
    Mounting
    Position
    Each
    Black Anodized Aluminum Body
    DCV-080-B-N-2——3/4"-16
    		085Not Rated3,0002Buna-N
    		1 1/4"Any Angle1731N11000000
    DCV-080-B-N-5——3/4"-16
    		085Not Rated3,0005Buna-N
    		1 1/4"Any Angle1731N1200000
    DCV-080-B-N-10CV08-20-0-N-10—3/4"-16
    		085Not Rated3,00010Buna-N
    		1 1/4"Any Angle1731N1300000
    DCV-080-B-N-25CV08-20-0-N-25—3/4"-16
    		085Not Rated3,00025Buna-N
    		1 1/4"Any Angle1731N1400000
    DCV-100-B-N-5CV10-20-0-N-05—7/8"-14
    		1020Not Rated3,0005Buna-N
    		1 5/8"Any Angle1731N1500000
    DCV-100-B-N-15CV10-20-0-N-15D04B2-1.0-N7/8"-14
    		1020Not Rated3,00015Buna-N
    		1 5/8"Any Angle1731N1700000
    DCV-100-B-N-30CV10-20-0-N-30—7/8"-14
    		1020Not Rated3,00030Buna-N
    		1 5/8"Any Angle1731N1800000
    DCV-100-B-N-60—D04B2-2.1-N7/8"-14
    		1020Not Rated3,00060Buna-N
    		1 5/8"Any Angle1731N1900000
     

    Pipeline Flame Arresters

    Image of Product. Front orientation. Flame Arresters. Pipeline Flame Arresters.
    To prevent flashback in flammable gas pipelines, an internal flame-arresting element absorbs the heat from a fire to extinguish the flame. These valves are commonly used in pilot lines connected to waste gas burners.
    Pipe
    Size
    Max. Pressure
    @ Temp.
    Max. Temp.,
    ° F
    End-to-End
    Lg.
    For Use With
    Flame-Arresting Element
    Material
    Each
    Aluminum Body
     
    NPT Female
    1/4
    		25 psi @ 176° F1763"Butane, Natural Gas, Propane316 Stainless Steel
    		4717K310000000
    1/2
    		25 psi @ 176° F1763 3/4"Butane, Natural Gas, Propane316 Stainless Steel
    		4717K32000000
    3/4
    		25 psi @ 176° F1763 3/4"Butane, Natural Gas, Propane316 Stainless Steel
    		4717K33000000
    1
    		25 psi @ 176° F1763 3/4"Butane, Natural Gas, Propane316 Stainless Steel
    		4717K34000000
    1 1/2
    		25 psi @ 176° F1763 3/4"Butane, Natural Gas, Propane316 Stainless Steel
    		4717K35000000
    2
    		25 psi @ 176° F1764 3/4"Butane, Natural Gas, Propane316 Stainless Steel
    		4717K36000000
     
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