McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    27 Products

    High-Temperature Threaded Precision Flow-Adjustment Valves

    Rated for nearly twice the maximum temperature of standard threaded precision flow-adjustment valves, these can handle up to 700° F. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Body is 316 stainless steel for excellent corrosion resistance. Valves have metal-to-metal seats that resist temperature fluctuations. All have a nut that can be tightened to compress the packing if it leaks.
    316 Stainless Steel Body
    Image of Product. Front orientation. Flow-Adjustment Valves. High-Temperature Threaded Precision Flow-Adjustment Valves.
    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.
    Overall
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Ht.
    Lg.
    Temp. Range,
    ° F
    Packing
    Material
    Needle Material
    End-to-End
    Lg.
    For Use With
    Valve
    Type
    Each
    NPT Female × NPT Female
    1/4 0.826,000 psi @ 100° F4,900 psi @ 700° F4 9/16"2 1/16"-65 to 700Graphite17-4 PH Stainless Steel2 1/16"Water, Oil, Air, SteamNeedle00000000000000
    3/8 1.316,000 psi @ 100° F4,900 psi @ 700° F4 7/8"2 5/8"-65 to 700Graphite17-4 PH Stainless Steel2 5/8"Water, Oil, Air, SteamNeedle0000000000000
    1/2 1.316,000 psi @ 100° F4,900 psi @ 700° F5 3/4"3"-65 to 700Graphite17-4 PH Stainless Steel3"Water, Oil, Air, SteamNeedle0000000000000
    3/4 2.676,000 psi @ 100° F4,900 psi @ 700° F5 7/8"3 1/4"-65 to 700Graphite17-4 PH Stainless Steel3 1/4"Water, Oil, Air, SteamNeedle0000000000000
    12.676,000 psi @ 100° F3,500 psi @ 700° F5 7/8"3 5/8"-65 to 700Graphite17-4 PH Stainless Steel3 5/8"Water, Oil, Air, SteamNeedle0000000000000
     

    High-Pressure Threaded Precision Flow-Adjustment Valves for Steam

    To withstand a maximum steam pressure of at least 4,800 psi @ 355° F in applications such as petroleum refineries, these valves are machined from a single piece of metal for seamless construction. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Valve body is 316 stainless steel for excellent corrosion resistance. Threads and a hex nut below the handle allow you to install these valves in instrument panels. All have metal-to-metal seats that resist temperature fluctuations. Valves have a nut that can be tightened to compress the packing if it leaks.
    316 Stainless Steel Body
    Image of Product. Front orientation. Flow-Adjustment Valves. High-Pressure Threaded Precision Flow-Adjustment Valves for Steam.
    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.
    Overall
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Ht.
    Lg.
    Temp. Range,
    ° F
    Seal
    Material
    Panel Cutout
    Dia.
    Seat Material
    Packing
    Material
    Needle Material
    End-to-End
    Lg.
    For Use
    With
    Valve
    Type
    Each
    NPT Female × NPT Female
    1/4 0.5810,000 psi @ 200° F6,200 psi @ 355° F3 5/8"2 5/16"-40 to 400PTFE
    		7/8"316 Stainless SteelPTFE
    		316 Stainless Steel2 5/16"SteamNeedle00000000000000
    3/8 0.5810,000 psi @ 200° F4,800 psi @ 355° F3 5/8"2 5/16"-40 to 400PTFE
    		7/8"316 Stainless SteelPTFE
    		316 Stainless Steel2 5/16"SteamNeedle0000000000000
    1/2 0.610,000 psi @ 200° F4,800 psi @ 355° F3 13/16"2 5/16"-40 to 400PTFE
    		1"316 Stainless SteelPTFE
    		316 Stainless Steel2 5/8"SteamNeedle0000000000000
     

    Threaded Precision Flow-Adjustment Valves for Steam

    Use these valves in applications with steam pressure up to 200 psi @ 450° F. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Valves have metal-to-metal seats that resist temperature fluctuations. All have a nut that can be tightened to compress the packing if it leaks.
    Bronze Body—Straight
    Image of Product. Front orientation. Flow-Adjustment Valves. Threaded Precision Flow-Adjustment Valves for Steam, Bronze Body—Straight.
    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.
    Overall
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Ht.
    Lg.
    Temp. Range,
    ° F
    Packing
    Material
    Needle
    Material
    End-to-End
    Lg.
    For Use
    With
    Valve
    Type
    Specs.
    Met
    Each
    NPT Female × NPT Female
    1/8 0.16400 psi @ 150° F200 psi @ 450° F3 1/8"2 1/4"-20 to 450Graphite642 Bronze1 3/16"SteamNeedleMSS SP-8000000000000000
    1/4 0.37400 psi @ 150° F200 psi @ 450° F3 1/4"2 1/4"-20 to 450Graphite642 Bronze1 9/16"SteamNeedleMSS SP-800000000000000
    3/8 0.51400 psi @ 150° F200 psi @ 450° F3 3/8"2 1/4"-20 to 450Graphite642 Bronze1 13/16"SteamNeedleMSS SP-800000000000000
    1/2 1.09400 psi @ 150° F200 psi @ 450° F4 5/16"2 1/4"-20 to 450Graphite642 Bronze2"SteamNeedleMSS SP-800000000000000
    3/4 2.25400 psi @ 150° F200 psi @ 450° F4 5/8"2 3/4"-20 to 450Graphite642 Bronze2 5/16"SteamNeedleMSS SP-800000000000000
    14.24200 psi @ 450° F200 psi @ 450° F5"3 1/4"-20 to 450Kevlar642 Bronze3 1/4"SteamNeedleMSS SP-800000000000000
     
    Bronze Body—90° Elbow
    Image of Product. Front orientation. Contains Annotated. Flow-Adjustment Valves. Threaded Precision Flow-Adjustment Valves for Steam, Bronze Body—90° Elbow.
    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.
    Overall
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Ht.
    Lg.
    Temp. Range,
    ° F
    Packing
    Material
    Needle
    Material
    Port-to-Port
    Lg.
    For Use
    With
    Valve
    Type
    Specs.
    Met
    Each
    NPT Female × NPT Female
    1/2 5.75200 psi @ 450° F200 psi @ 450° F4 5/8"2 1/16"-20 to 450Graphite642 Bronze1 1/16"SteamNeedleMSS SP-8000000000000000
     

    Precision Flow-Adjustment Valves with Sanitary Quick-Clamp Fittings for Clean Steam

    Image of Product. Front orientation. Flow-Adjustment Valves. Precision Flow-Adjustment Valves with Sanitary Quick-Clamp Fittings for Clean Steam.
    Often used in sterilization applications with clean steam, these valves are electropolished to a 16 Ra finish for smooth internal surfaces that prevent product buildup and inhibit bacteria growth. All have sanitary quick-clamp fittings for easy disassembly. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Valves have a 316L stainless steel body for excellent corrosion resistance.
    For Tube
    OD
    Flange
    OD
    Max. Pressure
    @ Temp.
    Max. Temp.,
    ° F
    End-to-End
    Lg.
    Interior Smoothness,
    Ra
    Valve
    Type
    For Use With
    Seal
    Material
    Each
    316L Stainless Steel Body
     
    Quick Clamp × Quick Clamp
    1/4" 0.984" 120 psi @ 300° F3004"16NeedleWater, Air, Carbon Dioxide, Clean Liquids, Deionized Water, Nitrogen, SteamPTFE
    		00000000000000
    3/8" 0.984" 120 psi @ 300° F3004"16NeedleWater, Air, Carbon Dioxide, Clean Liquids, Deionized Water, Nitrogen, SteamPTFE
    		0000000000000
    1/2" 0.984" 120 psi @ 300° F3004"16NeedleWater, Air, Carbon Dioxide, Clean Liquids, Deionized Water, Nitrogen, SteamPTFE
    		0000000000000
    3/4" 0.984" 120 psi @ 300° F3004"16NeedleWater, Air, Carbon Dioxide, Clean Liquids, Deionized Water, Nitrogen, SteamPTFE
    		0000000000000
    1" 1.984" 120 psi @ 300° F3004 1/2"16NeedleWater, Air, Carbon Dioxide, Clean Liquids, Deionized Water, Nitrogen, SteamPTFE
    		0000000000000
    1 1/2"1.984" 120 psi @ 300° F3005 1/2"16NeedleWater, Air, Carbon Dioxide, Clean Liquids, Deionized Water, Nitrogen, SteamPTFE
    		0000000000000
    2"2.516" 120 psi @ 300° F3006 1/4"16NeedleWater, Air, Carbon Dioxide, Clean Liquids, Deionized Water, Nitrogen, SteamPTFE
    		0000000000000
     

    Precision Flow-Adjustment Valves with Yor-Lok Fittings for Steam

    For extra gripping power and a strong seal, these valves have Yor-Lok fittings with two sleeves that bite into tubing as you tighten the nut. They are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. These valves are often used in petroleum refineries. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Body is 316 stainless steel for excellent corrosion resistance. For installation in instrument panels, valves have threads and a hex nut below the handle. They have metal-to-metal seats that resist temperature fluctuations. All have a nut that can be tightened to compress the packing if it leaks.
    316 Stainless Steel Body
    Image of Product. Front orientation. Flow-Adjustment Valves. Precision Flow-Adjustment Valves with Yor-Lok Fittings for Steam.
    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.
    Overall
    For Tube
    ID
    For Tube
    OD
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Ht.
    Lg.
    Seal
    Material
    Panel Cutout
    Dia.
    Seat Material
    Packing
    Material
    Needle Material
    End-to-End
    Lg.
    For Use
    With
    Valve
    Type
    Each
    Yor-Lok × Yor-Lok
    1/16" 1/4" 0.610,000 psi @ 200° F6,200 psi @ 355° F3 5/8"2 7/8"PTFE
    		7/8"316 Stainless SteelPTFE
    		316 Stainless Steel2 7/8"SteamNeedle00000000000000
    1/16" 3/8" 0.610,000 psi @ 200° F4,800 psi @ 355° F3 5/8"2 7/8"PTFE
    		7/8"316 Stainless SteelPTFE
    		316 Stainless Steel2 7/8"SteamNeedle0000000000000
    1/16" 1/2" 0.610,000 psi @ 200° F4,800 psi @ 355° F3 5/8"3 1/8"PTFE
    		7/8"316 Stainless SteelPTFE
    		316 Stainless Steel3 1/8"SteamNeedle0000000000000
     

    Precision Flow-Adjustment Valves with Solder-Socket Fittings

    Solder these valves to tubing for a permanent, leak-tight connection. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Valves have a 316 stainless steel body for excellent corrosion resistance. All have metal-to-metal seats that resist temperature fluctuations. They have a nut that can be tightened to compress the packing if it leaks.
    316 Stainless Steel Body
    Image of Product. Front orientation. Flow-Adjustment Valves. Precision Flow-Adjustment Valves with Solder-Socket Fittings.
    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.
    Overall
    For Tube
    OD
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Ht.
    Lg.
    Temp. Range,
    ° F
    Packing
    Material
    Needle Material
    End-to-End
    Lg.
    For Use With
    Valve
    Type
    Each
    Solder Socket × Solder Socket
    3/8" 0.946,000 psi @ 100° F4,900 psi @ 700° F4 7/8"2 1/4"-65 to 700Graphite17-4 PH Stainless Steel2 1/4"Water, Oil, Air, Argon, Helium, Krypton, Neon, Steam, XenonNeedle00000000000000
    1/2" 1.316,000 psi @ 100° F4,900 psi @ 700° F5 1/2"2 1/2"-65 to 700Graphite17-4 PH Stainless Steel2 1/2"Water, Oil, Air, Argon, Helium, Krypton, Neon, Steam, XenonNeedle0000000000000
     
    back to top