Shut Off Valves Air Valves
Description
Shut-off valves are designed to prevent the flow of air or gas within a system. They function as binary switches, meaning they are either completely open or completely closed, effectively controlling the flow of air or gas through the system. These valves are crucial in ensuring that the flow can be stopped entirely when necessary, providing a means to isolate sections of a system for maintenance or in emergency situations.
Working Principle
Shut-off valves operate by moving a disc, plug, or other closure element into or against an orifice to block the flow of air or gas. This can be achieved through various mechanisms, such as sliding a slat or rotating a disc. The valves are designed to provide a tight seal, preventing any leakage when in the closed position. The ability to completely stop the flow makes them useful in maintaining system integrity and safety, especially in critical applications where precise control over the flow is required.
Applications
Shut-off valves are used in a variety of applications where it is necessary to control the flow of air or gas. For example, they are commonly found in pneumatic systems where they can isolate sections of the system for maintenance. They are also used in safety applications to quickly stop the flow of gas in the event of a leak or other emergency. Additionally, shut-off valves are employed in industrial processes where precise control over the flow of air or gas is necessary to ensure product quality and process efficiency.
Advantages over other Air Valves
Shut-off valves offer several advantages over other types of air valves. One significant advantage is their ability to provide a complete and tight shut-off, which is crucial in applications where leakage cannot be tolerated. Unlike some other valve types, shut-off valves can be relied upon to completely stop the flow of air or gas, making them ideal for safety-critical applications. Additionally, their binary operation (fully open or fully closed) simplifies control and reduces the potential for operator error.
Limitations
Despite their advantages, shut-off valves have some limitations. They are not suitable for applications where flow modulation is required, as they do not allow for partial flow control. This binary operation can be a disadvantage in systems where precise flow regulation is necessary. Additionally, the design of shut-off valves may not be suitable for all types of media, particularly those that require sanitary conditions, as some shut-off valves may not provide the necessary level of cleanliness.
Considerations
When selecting shut-off valves, several factors should be considered. Initial costs can vary depending on the valve design and materials used, with more robust designs typically costing more. Operating expenses are generally low, as these valves do not require external power to operate. However, durability and maintenance costs can vary; valves used in harsh environments may require more frequent maintenance or replacement. Accuracy in terms of sealing and flow control is generally high, but it is essential to ensure that the valve is suitable for the specific application to avoid issues with leakage or wear.
from Clippard
Shut Off/Lock Out Valve, 1/8" NPT Inlet, 1/8" NPT Vent [See More]
- Valve Type: Shut Off
- Maximum Pressure: 150.00
- Valve Size: 0.12
- Connection Description: Threaded; 1/8" NPT
from ThermOmegaTech®
Operation. A thermostatic element inside the valve senses temperature and if this falls below the setpoint, the valve modulates open to allow flow. When the temperature increases to near the setpoint, the HAT (Heat Actuated Trap) valve modulates closed. HAT valves are available with built-in leakage... [See More]
- Valve Type: Control Valve; Drain; Hydraulic; Safety; Shut Off
- Flow (Cv): 1.30 to 2.00
- Valve Size: 0.50 to 0.75
- Maximum Pressure: 300.00
from jbj Techniques Limited
Potentially present hydrocarbons in the atmosphere can be a problem when attempting to make a controlled stop of an internal combustion engine. These hydrocarbons may enter the engine air intake system producing acceleration and loss of speed control of the engine, with the subsequent risk of... [See More]
- Valve Type: Shut Off; Special guillotine-design (Swing Valve)
- Media Temperature: -4 to 446
- Valve Size: 2.00 to 13.00
- Connection Description: BoltFlange (optional feature); Tube Fitting (optional feature)
from Shanghai Thinktank Process Management Co., Ltd
Description. The eccentric rotary plug control valve has a one-piece body design and connects by flanged(ASME Class150/PN25) or wafer type(ASME Class150/PN25). An eccentric plug valve is a type of rotary control valve which has a shaped plug. The plug doesn ’t touch with the valve seat until... [See More]
- Valve Type: Plug; Control Valve; Directional; Shut Off
from Radwell International
DISCONTINUED BY MANUFACTURER, SHUTOFF VALVE, 1.5 INCH S LINE, 4 INCH AIR TO RAISE, TEF-FLOW STEM, 24 VDC, STRAIN RELIEF CONNECTOR, 32RA FINISH. FREE 2 YEAR RADWELL WARRANTY [See More]
- Valve Type: Relief; Shut Off; Anti-Siphon
from ThermOmegaTech®
Product Description. TV/HAT valves are ideal for use in conjunction with tracer tubing and tracing systems using pre-traced tubing bundles. These valves are optimal for replacing conventional steam traps on winterization tracing, instrument tracing, condensate return system freeze protection,... [See More]
- Valve Type: Control Valve; Drain; Hydraulic; Safety; Shut Off
- Flow (Cv): 0.50
- Valve Size: 0.25 to 0.50
- Maximum Pressure: 300.00
from Shanghai Thinktank Process Management Co., Ltd
Description. FEATURES & BENEFITS. Compact designed Pneumatic On/OFF Valve. Easy addition of handwheel, metal bellows seal, and thermal extensions. Bonnet and body made of the same material for process compatibility. Class VI shut-off with PTFE insert in the plug [See More]
- Valve Type: Globe; Control Valve; Shut Off
from SC Hydraulic Engineering Corporation
The ASV-100-N-050 valve was designed to be plumbed between the air supply FRL assembly and the air drive inlet port on SC 10-4, 10-5 and 10-6 series pumps. The valve is normally closed with a field adjustable opening pressure between 25 psig and 100 psig. The pump cycles only when necessary... [See More]
- Valve Type: Shut Off
- Maximum Pressure: 100.00
- Valve Size: 0.50
- Connection Description: Threaded; .5" NPT
from DK-LOK U.S.A.
Up to 5000psig (344 bar). Up to 232 ℃ (450 ℉). SS316,Brass, and Alloys. Regulating stem, Vee stem, and Soft seat. Bar and Knob handles. DK-LOK OD 1/8 - OD 3/4 inch Pipe thread 1/8 -1/2 inch [See More]
- Valve Type: Needle; Shut Off
- Flow (Cv): 0.09
- Valve Size: 0.08
- Maximum Pressure: 5000.00
from IMI Bimba
Pneumatic isolation valves are typically the first valve following the FRL components in the line supplying compressed air to pneumatic equipment. They are critical components in any safety lock-out/tagout system. Available accessories include air mufflers, pressure switches, air pressure visual... [See More]
- Valve Type: Shut Off
- Maximum Pressure: 15.00 to 145.00
- Valve Size: 0.25 to 1.50
- Actuation: Manual
from co-ax valves inc.
Function: pressure balanced 2/2 way direct acting coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated steel,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 5.50
- Valve Size: 0.59
- Maximum Pressure: 0.00 to 1500.00
from Emerson Automation Solutions – TESCOM Regulators, Valves & Systems
TESCOM ™ 20-1000 Series regulator is designed with lightweight aluminum construction for onboard compressed natural gas vehicles with 7 liter engines and larger. Piston sensed for long service life with coolant heat jacket to prevent freezing. [See More]
- Valve Type: Regulator; Shut Off
- Flow (Cv): 0.50
- Valve Size: 0.25 to 0.38
- Maximum Pressure: 3600.00
from Carr Lane Manufacturing Co.
High-pressure ball-type hydraulic valve. Often used to hold fixture pressure during transport with the power source disconnected (a Shutoff Valve is included as part of every manual Pallet Decoupler). Can also be used to shut off unused lines in a multi-purpose fixture. [See More]
- Valve Type: Hydraulic; Shut Off
- Maximum Pressure: 7500.00
- Valve Size: 0.25 to 0.50
- Connection Description: Threaded; 1/4" BSPP
from Valcor Engineering Corporation
Valcor is known for our “Floating Seal ” valve design that utilizes a flat seal disc against an equally flat seat. The gate-type action literally wipes the seal clean with each valve operation. This wiping action virtually keeps the valve from being affected by contamination. Valcor also... [See More]
- Valve Type: Solenoid; Shut Off
- Flow (Cv): 0.13
- Valve Size: 0.09 to 0.10
- Maximum Pressure: 220.00 to 430.00
from CIRCOR Energy
Control valves are typically globe valves with an internal trim installed at the valve seat. The trim is designed to attenuate energy in the form of velocity, noise, or heat. The control valve has a very tough job to perform as the valve is typically found where there is a large disparity in the... [See More]
- Valve Type: Control Valve; Shut Off; Dump Valve
- Maximum Pressure: 4000.00
- Valve Size: 1.00 to 6.00
- Media Temperature: -40 to 200
from co-ax valves inc.
Function: pressure balanced 2/2 way direct acting coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated steel,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 8.50
- Valve Size: 0.79
- Maximum Pressure: 0.00 to 1500.00
from Valcor Engineering Corporation
Description. Valcor is known for our “Floating Seal ” valve design that utilizes an optically flat seal disc against an equally flat seal. The gate-type action literally wipes the seal clean with each valve operation. This wiping action virtually keeps the valve from being affected by... [See More]
- Valve Type: Solenoid; Control Valve; Shut Off
- Flow (Cv): 5.20 to 13.30
- Valve Size: 0.50 to 1.00
- Maximum Pressure: 250.00
from co-ax valves inc.
Function: pressure balanced 2/2 way direct acting coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated steel,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 12.90
- Valve Size: 0.98
- Maximum Pressure: 0.00 to 1500.00
from Valcor Engineering Corporation
Description. Valcor is known for our “Floating Seal ” valve design that utilizes an optically flat seal disc against an equally flat seal. The gate-type action literally wipes the seal clean with each valve operation. This wiping action virtually keeps the valve from being affected by... [See More]
- Valve Type: Solenoid; Control Valve; Shut Off
- Maximum Pressure: 3500.00
- Flow (Cv): 0.50 to 4.80
- Media Temperature: -65 to 450
from co-ax valves inc.
Function: pressure balanced 2/2 way direct acting coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated steel,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 16.30
- Valve Size: 1.26
- Maximum Pressure: 0.00 to 1500.00
from co-ax valves inc.
Function: pressure balanced 2/2 way direct acting coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated steel,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 21.30
- Valve Size: 1.57
- Maximum Pressure: 0.00 to 960.00
from co-ax valves inc.
Function: pressure balanced 2/2 way direct acting coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated steel,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 32.70
- Valve Size: 1.97
- Maximum Pressure: 0.00 to 240.00
from co-ax valves inc.
Function: pressure balanced 2/2 way direct acting coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated steel,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 52.20
- Valve Size: 2.56
- Maximum Pressure: 0.00 to 240.00
from co-ax valves inc.
Function: pressure balanced 2/2 way direct acting coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated steel,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 81.20
- Valve Size: 3.15
- Maximum Pressure: 0.00 to 240.00
from co-ax valves inc.
Function: pressure balanced 2/2 way direct acting coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated steel,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 2.90
- Valve Size: 0.39
- Maximum Pressure: 0.00 to 960.00
from co-ax valves inc.
Function: pressure balanced 2/2 way externally controlled coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated... [See More]
- Valve Type: Injection; Pilot; Solenoid; Control Valve; Drain; Hydraulic; Metering; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 1.80
- Valve Size: 0.31
- Maximum Pressure: 0.00 to 600.00
from co-ax valves inc.
Function: pressure balanced 2/2 way externally controlled coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated... [See More]
- Valve Type: Injection; Pilot; Solenoid; Control Valve; Drain; Hydraulic; Metering; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 1.80
- Valve Size: 0.31
- Maximum Pressure: 0.00 to 1500.00
from co-ax valves inc.
Function: pressure balanced 2/2 way externally controlled coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated... [See More]
- Valve Type: Injection; Control Valve; Drain; Hydraulic; Metering; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 248.55
- Valve Size: 3.94
- Maximum Pressure: 0.00 to 580.15
from co-ax valves inc.
Function: pressure balanced 2/2 way externally controlled coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated... [See More]
- Valve Type: Injection; Control Valve; Drain; Hydraulic; Metering; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 262.42
- Valve Size: 4.92
- Maximum Pressure: 0.00 to 580.15
from co-ax valves inc.
Function: pressure balanced 2/2 way externally controlled coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated... [See More]
- Valve Type: Injection; Control Valve; Drain; Hydraulic; Metering; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 124.10
- Valve Size: 2.56
- Maximum Pressure: 0.00 to 600.00
from co-ax valves inc.
Function: pressure balanced 2/2 way externally controlled coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated... [See More]
- Valve Type: Injection; Control Valve; Drain; Hydraulic; Metering; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 154.20
- Valve Size: 3.15
- Maximum Pressure: 0.00 to 600.00
from co-ax valves inc.
Function: pressure balanced 2/2 way externally controlled coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated... [See More]
- Valve Type: Injection; Control Valve; Drain; Hydraulic; Metering; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 223.12
- Valve Size: 3.94
- Maximum Pressure: 0.00 to 580.15
from co-ax valves inc.
Function: pressure balanced 2/2 way externally controlled coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated... [See More]
- Valve Type: Injection; Control Valve; Drain; Hydraulic; Metering; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 2.90
- Valve Size: 0.39
- Maximum Pressure: 0.00 to 1500.00
from co-ax valves inc.
Function: pressure balanced 3/2 way direct acting coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated steel,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Diverter; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 3.00
- Valve Size: 0.39
- Maximum Pressure: 0.00 to 600.00
from co-ax valves inc.
Function: pressure balanced 3/2 way externally controlled coaxial valves, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, coolant. Body Materials: aluminum, brass, galvanized steel, nickel plated brass, nickel plated... [See More]
- Valve Type: Injection; Control Valve; Diverter; Drain; Hydraulic; Metering; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 2.90
- Valve Size: 0.39
- Maximum Pressure: 0.00 to 960.00
from co-ax valves inc.
Function: pressure balanced 2/2 or 3/2 way cartridge valves externally controlled or direct acting, normally closed version. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, abrasive. Body Materials: aluminum, brass, stainless steel. Options: valve body, limit switches,... [See More]
- Valve Type: Injection; Control Valve; Drain; Hydraulic; Metering; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 3.40
- Valve Size: 0.39
- Maximum Pressure: 0.00 to 750.00
from co-ax valves inc.
Function: pressure balanced 2/2 or 3/2 way coaxial valves externally controlled or direct acting, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive. Body Materials: brass, galvanized steel, nickel plated steel, without... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 0.68
- Valve Size: 0.38
- Maximum Pressure: 0.00 to 1950.00
from co-ax valves inc.
Function: pressure balanced 2/2 or 3/2 way coaxial valves externally controlled or direct acting, normally closed and normally open versions. Media: gaseous, liquid. Body Material: brass, nickel plated brass, stainless steel. Options: special threads, mounting, special voltage, plug M 12 x 1,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 0.36
- Valve Size: 0.06 to 0.12
- Maximum Pressure: 0.00 to 7500.00
from co-ax valves inc.
Function: pressure balanced 2/2 or 3/2 way coaxial valves externally controlled or direct acting, normally closed and normally open versions. Media: gaseous, liquid. Body Material: brass, nickel plated brass, stainless steel. Options: special threads, mounting, special voltage, plug M 12 x 1,... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Diverter; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 3.10
- Valve Size: 0.47
- Media Temperature: 14 to 176
from co-ax valves inc.
Function: pressure balanced 2/2 or 3/2 way coaxial valves direct acting, normally closed and normally open versions. Media: gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, liquid fuels. Body Material: If you have any further queries, please do not hesitate to contact us... [See More]
- Valve Type: Injection; Solenoid; Control Valve; Drain; Hydraulic; Mixing; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 2.90
- Valve Size: 0.39
- Maximum Pressure: 0.00 to 240.00
from co-ax valves inc.
Function: pressure balanced 2/2 or 3/2 way coaxial valves externally controlled or pneumatically controlled, normally closed versions. Media: gaseous, liquid, highly viscous, gelatinous, pasty, contaminated. Body Materials: brass, nickel plated brass, stainless steel. Options: special flanges, limit... [See More]
- Valve Type: Bellows; Injection; Control Valve; Drain; Hydraulic; Metering; Mixing; Sampling; Shut Off; Coaxial Valve
- Flow (Cv): 0.00 to 3.40
- Valve Size: 0.39
- Maximum Pressure: 0.00 to 375.00