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Valve Size:

Pressure Rating:

Number of Ports/Ways:

Metal Seated?

Valve Type:



Help with Steam Valves specifications:

   Valve Size       Valve size is the designated size of the valve by manufacturer.  This typically represents the size of the passage opening. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Pressure Rating       Maximum safe pressure value for which the valve is rated. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Number of Ports/Ways       Represents the number of connections or inlet / outlet ports to the valve. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Metal Seated       Valves with metal seats are designed for severe applications such as high pressure and or temperature. Seats can be made of various materials such as carbon and stainless steel to withstand  the demanding applications. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Valve Type
   Your choices are...         
   Angle Valves       Angle valves have an inlet and outlet at 90 degrees, or a control mechanism that enters the valve body at an angle to conserve room and allow maximum flow. 
   Ball Valves       Ball valves provide tight shut-off and characterizable control. They have high rangeability due to the design of the regulating element, without the complications of side loads typical of butterfly or globe valves. Advantages include ease of operation and high flow, high pressure, and high temperature capabilities. Disadvantages include low cleanliness and an inability to handle slurries. 
   Bellows Valves       Bellows valves have a bellows seal between the media and the valve's bonnet. Bellows valves provide a contaminant-free, positive shut-off for high purity gas / fluid systems. 
   Butterfly Valves       Butterfly valves control the flow of gas or liquid with a disk which turns on a diametrical axis inside a pipe, or by two semicircular plates hinged on a common spindle, permitting flow in only one direction. They are used as throttling valves to control flow. Butterfly valves offer a rotary stem movement of 90 degrees or less in a compact design. Unlike ball valves, butterfly valves do not have pockets in which fluids may become trapped when the valve is closed. Advantages include suitability for chemical services, small dimensions, and high coefficient of flow. Disadvantages include low cleanliness and the inability to handle slurries. 
   Cartridge / Manifold Valves       Cartridge valves are directional control valves that are inserted into manifolds to provide a cost-effective, compact system design. 
   Check Valves       Check valves are self-activating safety valves that prevent process flow from reversing. 
   Balancing Valves       Balancing valves are mixing valves that maintain a constant water temperature by balancing hot and cold supply lines. They are able to compensate for a pressure drop in either supply line and can maintain a consistent temperature. Balancing valves are sometimes referred to as pressure-balancing valves. 
   Diverter Valves       Diverter valves change the direction of the flow of a medium to two or more different directions. 
   Gate / Knife Valves       Gate or knife valves are linear motion valves in which a flat closure element slides into the flow stream to provide shut-off. Gate valves are usually divided into two types: parallel and wedge-shaped. The parallel gate valve uses a flat disc gate between two parallel seats, upstream and downstream. Knife valves are of this type, but with a sharp edge on the bottom of the gate to shear entrained solids or separate slurries. Advantages include the ability to cut through slurries. Large sizes are commonly available. Disadvantages include pressure limitations, lack of cleanliness, and low shut-off. 
   Globe Valves       Globe valves are linear motion valves with rounded bodies, from which their name is derived.  They are used widely in industry to regulate fluid flow in both on/off and throttling service.  Advantages include precise throttling and control, as well as high-pressure limits. Disadvantages include low cleanliness and the inability to handle slurry. 
   Injection Valves       Injection valves are actuated valves that inject a controlled amount of fluid into a tank or process. 
   Line Blinds       Line blind valves are used when assurance of no downstream leakage is required. A solid plate is placed in the flow path to prevent leakage. Any leakage that could occur will be outside of the flow path. 
   Needle Valves       Needle valves have a slender, tapered point at the end of the valve stem that is lowered through the seat to restrict or block flow.  Fluid flowing through the valve turns 90 degrees and passes through an orifice that is the seat for a rod with a cone shaped tip. These small valves are widely used to accurately regulate the flow of liquids and gases at low flow rates. The fine threading of the stem and the large seat area allow for precise resistance to flow. Advantages: Precise control. Disadvantages: low-pressure limitations, no slurries. 
   Pilot Valves       Pilot valves are small valves that are used to operate larger valves. They generally require less applied power to turn the larger valve than if the larger valve was operated independently. Solenoid valves are often used as pilot valves. 
   Pinch Valves       Pinch valves include any valve with a flexible elastomer body that can be pinched closed, cutting off flow, using a mechanism or fluid pressure. Pinch valves are full bore, linear action valves so they can be used in both an off/on manner or in a variable position or throttling service. Some typical applications for pinch valves are medical, pharmaceutical, wastewater, slurries, pulp, powder and pellets. They can effectively control the flow of both abrasives and corrosives, as there is no contact between metal parts and the transport media. Advantages: Streamlined flow, high coefficient of flow. Disadvantages: limited materials, low shut-off capabilities, low pressure limits. 
   Piston Valves       Piston valves control fluid flow within a tube or pipe by motion of a piston moving in a linear path. 
   Plug Valves       Plug valves, also called cock or stop-cock valves, date back to ancient times, where they were developed for use in citywide Roman plumbing systems. Today, they remain one of the most widely used valves for both on/off and throttling services. Their design is fairly simple; the body is comprised of three main parts: body, cover and plug. The plug is a cylindrical, tapered, or generally cone-shaped device that can be raised or lowered within the seat to maintain, restrict or completely shut off flow.  The valve is opened by rotation with the plug itself being the only element that is capable of movement. Advantages: Easy operation, medium to high flow, good shut off. Disadvantages: Low cleanliness, inability to handle slurry. 
   Poppet Valves       Poppet valves open and close ports with a sealing device composed of a disk, cone, or sphere that is pressed against the seating surface using a spring. 
   Pressure Relief Valves       Pressure relief valves are self-actuated safety valves designed to relieve excess upstream pressure from the line. 
   Safety Valves       Safety valves contain a thermal sensing component that opens or closes in response to temperature changes or close a line and stop the flow of material when a pre-set condition occurs. 
   Regulators       Regulators maintain a constant outlet pressure. 
   Servo Valves       Servo valves provide closed loop flow or pressure response to an electrical or electronic control signal. They are used in air, gas, and liquid applications. 
   Shut Off Valves       Shut off valves close a line to stop the flow of material when a pre-set condition occurs such as excess flow or a pressure pulse from a broken line or a temperature change from an idle burner. 
   Solenoid Valves       Solenoid valves are electro-mechanical devices that utilize a solenoid to control valve activation. 
   Spool Valves       Spool valves use a rotary or piston-like spool for actuation. The spool, or spools, rotate or slide back and forth to block and uncover ports in the housing. 
   Toggle Valves       Toggle valves are used for on-off control in moderate pressure and temperature applications. They feature a toggle mechanism for valve actuation. 
   Underwater Valves       Underwater valves are designed to handle excess external pressure and block water ingress in underwater applications. For example, they may be installed in a pipeline on the seabed.  Underwater valves are also referred to as sub-sea valves. 
   Vacuum Relief / Anti-siphon Valves       Vacuum relief valves are automatic valves that open or close a vent to relieve a vacuum, depending on whether the vacuum is above or below a predetermined value. They are frequently used in hot water supply systems. An anti-siphon valve is a valve, usually plastic or brass, used to control the flow of water in one direction. It will prevent a backflow of water into the potable water supply. 
   Other       Other proprietary, specialized, or unlisted applications. 
   Block and Bleed Valves       Block and bleed valves are configured so that flow through the valve is blocked at both the inlet and outlet, and a small port is provided to drain or depressurize the space between. This configuration is often required to isolate high-pressure sections of a system to facilitate safe maintenance or rapid depressurization. These valves are also referred to as double block and bleed valves. 
   Blow Off Valves       Blow off valves (BOV) are used to blow pressure off the pipeline and in purging operations. Blow off valves are also used in the automotive industry to relieve pressure in the piping from the turbo to the inlet manifold when the throttle is backed off. When used in this way, they are referred to as compressor bypass valves. 
   Control Valves       Control valves or proportional valves are power-operated devices used to modify fluid flow or pressure rate in a process system. 
   Directional Valves       Directional valves direct or prevent flow through selected passages. 
   Drain Valves       Drain valves allow the removal of surplus fluid from a system or container. 
   Excess Flow Valves (EFV)       Excess flow valves are application-specific valves that are used to shut off flow in the event of an unusually high flow condition. 
   Metering Valves       Metering valves are capable of accurately controlling the flow of a fluid. 
   Mixing Valves       Mixing valves combine the flows of two or more inlets into a single outlet for applications such as temperature or concentration control. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Your choices are...         
   Threaded       The valve has internal or external threads for inlet or outlet connection(s). 
   Compression Fitting       A sealed pipe connection without soldering or threading. As the nut on one fitting is tightened, it compresses a washer around the second pipe, forming a watertight closure. 
   Bolt Flange       The valve has a bolt flange(s) for inlet or outlet connection. 
   Clamp Flange       The valve has a clamp flange(s) for inlet or outlet connection. 
   Union       The valve has a union connection for inlet or outlet connection(s). 
   Tube Fitting       The valve has a connection for directly joining tubing at the inlet and/or outlet connections. 
   Butt Weld       The valve has a butt weld sized connection for inlet or outlet connection. 
   Socket Weld / Solder       The valve has a socket weld connection for inlet or outlet connection. 
   Metal Face Seal       The valve has a metal gasket sandwiched between two fitting parts. The gasket forms a face seal on each side of the fitting. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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   Your choices are...         
   Manual / Hand       The valve is actuated (opened or closed) via a hand operated wheel or crank. 
   Mechanical Device       A mechanical device such as a float or cam activates the valve. This does not include powered actuators. 
   Electric       An electric actuator activates the valve. 
   Electro-hydraulic       A servo valve that produces hydraulic control in response to an electrical signal input. 
   Electro-pneumatic       A servo valve that produces pneumatic control in response to an electrical signal input. 
   Pilot Operated       A pilot valve activates the valve. 
   Pneumatic       The valve is activated by a pneumatic actuator or cylinder to open and close valve.  
   Thermally Actuated       The valve is activated by a change in temperature in the handled media. Typically, temperature and pressure relief occurs once a preset temperature is reached. 
   Other       Other unlisted, specialized, or proprietary actuation method. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Deltrol Controls/Division of Deltrol Corp.
Deltrol Controls/Division of Deltrol Corp.