• Isov Pneumatic Valve N200-P Quick View
    • Isov Pneumatic Valve N200-P Quick View
    • Isov Pneumatic Valve N200-P
    • The Pneumatic ISOV valve N200-P  is operated by applying Air or Oil pressure to the pneumatic cylinder integrated in the body. The Pressure inlet port is shown in the adjacent drawing. The pneumatic cylinder trips and closes ISOV when a pressure source is applied. The air or oil pressure is applied by using a 2/3 way solenoid valve as shown on the diagram. After tripping the pneumatic cylinder, ISOV will close and the 2/3 way solenoid has to be reset after which the valve can be opened and latched in the same manner as the Manual version. To increase safety, all ISOV pneumatic valves will be equipped with a manual Pull handle in case the solenoid for any reason may fail due to electric blackout. Standard Pressure inlet ports are 1/8 or 1/4 "size.
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  • ISOV Pneumatic Valve N400-P Quick View
    • ISOV Pneumatic Valve N400-P Quick View
    • ISOV Pneumatic Valve N400-P
    • The Pneumatic ISOV valve N400-P  is operated by applying Air or Oil pressure to the pneumatic cylinder integrated in the body. The Pressure inlet port is shown in the adjacent drawing. The pneumatic cylinder trips and closes ISOV when a pressure source is applied. The air or oil pressure is applied by using a 2/3 way solenoid valve as shown on the diagram. After tripping the pneumatic cylinder, ISOV will close and the 2/3 way solenoid has to be reset after which the valve can be opened and latched in the same manner as the Manual version. To increase safety, all ISOV pneumatic valves will be equipped with a manual Pull handle in case the solenoid for any reason may fail due to electric blackout. Standard Pressure inlet ports are 1/8 or 1/4 "size.
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  • ISOV Pneumatic Valve N600-P Quick View
    • ISOV Pneumatic Valve N600-P Quick View
    • ISOV Pneumatic Valve N600-P
    • The Pneumatic ISOV valve N600-P  is operated by applying Air or Oil pressure to the pneumatic cylinder integrated in the body. The Pressure inlet port is shown in the adjacent drawing. The pneumatic cylinder trips and closes ISOV when a pressure source is applied. The air or oil pressure is applied by using a 2/3 way solenoid valve as shown on the diagram. After tripping the pneumatic cylinder, ISOV will close and the 2/3 way solenoid has to be reset after which the valve can be opened and latched in the same manner as the Manual version. To increase safety, all ISOV pneumatic valves will be equipped with a manual Pull handle in case the solenoid for any reason may fail due to electric blackout. Standard Pressure inlet ports are 1/8 or 1/4 "size.
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  • ISOV Pneumatic Valve N800-P Quick View
    • ISOV Pneumatic Valve N800-P Quick View
    • ISOV Pneumatic Valve N800-P
    • The Pneumatic ISOV valve N800-P  is operated by applying Air or Oil pressure to the pneumatic cylinder integrated in the body. The Pressure inlet port is shown in the adjacent drawing. The pneumatic cylinder trips and closes ISOV when a pressure source is applied. The air or oil pressure is applied by using a 2/3 way solenoid valve as shown on the diagram. After tripping the pneumatic cylinder, ISOV will close and the 2/3 way solenoid has to be reset after which the valve can be opened and latched in the same manner as the Manual version. To increase safety, all ISOV pneumatic valves will be equipped with a manual Pull handle in case the solenoid for any reason may fail due to electric blackout. Standard Pressure inlet ports are 1/8 or 1/4 "size.
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  • ISOV Valve Pneumatic N1268 Quick View
    • ISOV Valve Pneumatic N1268 Quick View
    • ISOV Valve Pneumatic N1268
    • The Pneumatic ISOV valve is operated by applying Air or Oil pressure to the pneumatic cylinder integrated in the body. The Pressure inlet port is shown in the adjacent drawing. The pneumatic cylinder trips and closes ISOV when a pressure source is applied. The air or oil pressure is applied by using a 2/3 way solenoid valve as shown on the diagram. After tripping the pneumatic cylinder, ISOV will close and the 2/3 way solenoid has to be reset after which the valve can be opened and latched in the same manner as the Manual version. To increase safety, all ISOV pneumatic valves will be equipped with a manual Pull handle in case the solenoid for any reason may fail due to electric blackout. Standard Pressure inlet ports are 1/8 or 1/4 "size.
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  • Isov Valve Electric N200-E Quick View
    • Isov Valve Electric N200-E Quick View
    • Isov Valve Electric N200-E
    • ISOV Pneumatic Valve N200-E Equal to the P and M version, all ISOV E versions must be latched open by rotating the manual reset Hexagon as shown in the drawing(1). Once latched the reset lever will remain in the latched position until released by activating an linear 12 or 24 VDC solenoid(2). All ISOV solenoids are optimized to apply the right force to release and close ISOV, in this way a compact overall dimension can be guaranteed. Unlike other suppliers of safety valve all our Solenoids are equipped with an IP65 rated junction box which guarantees safe and reliable wiring required in the industry. Equal to the P version all E versions are equipped with the manual Pull Handle (see drawing) to increase safety in case electric power is lost.
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  • ISOV Electric Valve N400-E Quick View
    • ISOV Electric Valve N400-E Quick View
    • ISOV Electric Valve N400-E
    • ISOV Pneumatic Valve N400-E Equal to the P and M version, all ISOV E versions must be latched open by rotating the manual reset Hexagon as shown in the drawing(1). Once latched the reset lever will remain in the latched position until released by activating an linear 12 or 24 VDC solenoid(2). All ISOV solenoids are optimized to apply the right force to release and close ISOV, in this way a compact overall dimension can be guaranteed. Unlike other suppliers of safety valve all our Solenoids are equipped with an IP65 rated junction box which guarantees safe and reliable wiring required in the industry. Equal to the P version all E versions are equipped with the manual Pull Handle (see drawing) to increase safety in case electric power is lost.
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  • ISOV Electric Valve N600-E Quick View
    • ISOV Electric Valve N600-E Quick View
    • ISOV Electric Valve N600-E
    • ISOV Pneumatic Valve N600-E Equal to the P and M version, all ISOV E versions must be latched open by rotating the manual reset Hexagon as shown in the drawing(1). Once latched the reset lever will remain in the latched position until released by activating an linear 12 or 24 VDC solenoid(2). All ISOV solenoids are optimized to apply the right force to release and close ISOV, in this way a compact overall dimension can be guaranteed. Unlike other suppliers of safety valve all our Solenoids are equipped with an IP65 rated junction box which guarantees safe and reliable wiring required in the industry. Equal to the P version all E versions are equipped with the manual Pull Handle (see drawing) to increase safety in case electric power is lost.
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  • ISOV Electric Valve N800-E Quick View
    • ISOV Electric Valve N800-E Quick View
    • ISOV Electric Valve N800-E
    • ISOV Pneumatic Valve N800-E Equal to the P and M version, all ISOV E versions must be latched open by rotating the manual reset Hexagon as shown in the drawing(1). Once latched the reset lever will remain in the latched position until released by activating an linear 12 or 24 VDC solenoid(2). All ISOV solenoids are optimized to apply the right force to release and close ISOV, in this way a compact overall dimension can be guaranteed. Unlike other suppliers of safety valve all our Solenoids are equipped with an IP65 rated junction box which guarantees safe and reliable wiring required in the industry. Equal to the P version all E versions are equipped with the manual Pull Handle (see drawing) to increase safety in case electric power is lost.
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  • Isov Failsafe Valve N200-FS Quick View
    • Isov Failsafe Valve N200-FS Quick View
    • Isov Failsafe Valve N200-FS
    • ISOV Failsafe Valves are often used on offshore cranes as well as on Oil and Gas installations whereby the valve has to close whenever electric power is lost. The FS version requires Oil or Air pressure to guarantee its functionality. The basic working principle is that Pressure holds the valve open by energizing a 2/3 way Normally Closed solenoid valve. When power is lost the solenoid creates loss of pressure causing ISOV to trip and close.
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  • Isov Failsafe Valve N400-FS Quick View
    • Isov Failsafe Valve N400-FS Quick View
    • Isov Failsafe Valve N400-FS
    • ISOV Failsafe Valves are often used on offshore cranes as well as on Oil and Gas installations whereby the valve has to close whenever electric power is lost. The FS version requires Oil or Air pressure to guarantee its functionality. The basic working principle is that Pressure holds the valve open by energizing a 2/3 way Normally Closed solenoid valve. When power is lost the solenoid creates loss of pressure causing ISOV to trip and close.
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  • Isov Failsafe Valve N600-FS Quick View
    • Isov Failsafe Valve N600-FS Quick View
    • Isov Failsafe Valve N600-FS
    • ISOV Failsafe Valves are often used on offshore cranes as well as on Oil and Gas installations whereby the valve has to close whenever electric power is lost. The FS version requires Oil or Air pressure to guarantee its functionality. The basic working principle is that Pressure holds the valve open by energizing a 2/3 way Normally Closed solenoid valve. When power is lost the solenoid creates loss of pressure causing ISOV to trip and close.
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  • Isov Failsafe Valve N800-FS Quick View
    • Isov Failsafe Valve N800-FS Quick View
    • Isov Failsafe Valve N800-FS
    • ISOV Failsafe Valves are often used on offshore cranes as well as on Oil and Gas installations whereby the valve has to close whenever electric power is lost. The FS version requires Oil or Air pressure to guarantee its functionality. The basic working principle is that Pressure holds the valve open by energizing a 2/3 way Normally Closed solenoid valve. When power is lost the solenoid creates loss of pressure causing ISOV to trip and close.
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  • Isov Remote Manual Valve N200-M Quick View
    • Isov Remote Manual Valve N200-M Quick View
    • Isov Remote Manual Valve N200-M
    • Remote Manual Valve N200-M: The Manual Pull Kit consists of a special Bracket plus internals to be mounted on the ISOV valve and connected by a Cable to the Control Panel Knob which is positioned inside the operators cabin. This kit can be delivered in any length and the Manual Pull Kit can be equipped on all ISOV valves, regardless of ISOV bore size. The Remote Manual Pull Configuration is usually found on mobile equipment, trucks, small welding machines, gen-sets etc. ISOV emergency shutoff valves prevent enginge overspeeding by shutting off the air intake line. Prior to starting the engine the manual ISOV emergency vave must be latched open by rotating the manual reset axis (1) One latched the reset lever will remain in the latched open position untill released by pulling the manual trip handle(2). The manual trip handle can be mounted directly on the valve (see figure 1) or mounted remotely using a special kit which includes a pull cable, available in different lengths. The manual pull handle can be equipped on all ISOV valves, regardless of size.  
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  • Isov Remote Manual Valve N400-M Quick View
    • Isov Remote Manual Valve N400-M Quick View
    • Isov Remote Manual Valve N400-M
    • Remote Manual Valve N400-M: The Manual Pull Kit consists of a special Bracket plus internals to be mounted on the ISOV valve and connected by a Cable to the Control Panel Knob which is positioned inside the operators cabin. This kit can be delivered in any length and the Manual Pull Kit can be equipped on all ISOV valves, regardless of ISOV bore size. The Remote Manual Pull Configuration is usually found on mobile equipment, trucks, small welding machines, gen-sets etc. ISOV emergency shutoff valves prevent enginge overspeeding by shutting off the air intake line. Prior to starting the engine the manual ISOV emergency vave must be latched open by rotating the manual reset axis (1) One latched the reset lever will remain in the latched open position untill released by pulling the manual trip handle(2). The manual trip handle can be mounted directly on the valve (see figure 1) or mounted remotely using a special kit which includes a pull cable, available in different lengths. The manual pull handle can be equipped on all ISOV valves, regardless of size.  
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  • Isov Remote Manual Valve N600-M Quick View
    • Isov Remote Manual Valve N600-M Quick View
    • Isov Remote Manual Valve N600-M
    • Remote Manual Valve N600-M: The Manual Pull Kit consists of a special Bracket plus internals to be mounted on the ISOV valve and connected by a Cable to the Control Panel Knob which is positioned inside the operators cabin. This kit can be delivered in any length and the Manual Pull Kit can be equipped on all ISOV valves, regardless of ISOV bore size. The Remote Manual Pull Configuration is usually found on mobile equipment, trucks, small welding machines, gen-sets etc. ISOV emergency shutoff valves prevent enginge overspeeding by shutting off the air intake line. Prior to starting the engine the manual ISOV emergency vave must be latched open by rotating the manual reset axis (1) One latched the reset lever will remain in the latched open position untill released by pulling the manual trip handle(2). The manual trip handle can be mounted directly on the valve (see figure 1) or mounted remotely using a special kit which includes a pull cable, available in different lengths. The manual pull handle can be equipped on all ISOV valves, regardless of size.
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  • Isov Remote Manual Valve N800-M Quick View
    • Isov Remote Manual Valve N800-M Quick View
    • Isov Remote Manual Valve N800-M
    • Remote Manual Valve N800-M: The Manual Pull Kit consists of a special Bracket plus internals to be mounted on the ISOV valve and connected by a Cable to the Control Panel Knob which is positioned inside the operators cabin. This kit can be delivered in any length and the Manual Pull Kit can be equipped on all ISOV valves, regardless of ISOV bore size. The Remote Manual Pull Configuration is usually found on mobile equipment, trucks, small welding machines, gen-sets etc. ISOV emergency shutoff valves prevent enginge overspeeding by shutting off the air intake line. Prior to starting the engine the manual ISOV emergency vave must be latched open by rotating the manual reset axis (1) One latched the reset lever will remain in the latched open position untill released by pulling the manual trip handle(2). The manual trip handle can be mounted directly on the valve (see figure 1) or mounted remotely using a special kit which includes a pull cable, available in different lengths. The manual pull handle can be equipped on all ISOV valves, regardless of size.
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The ISOV emergency shutoff valve is a positive spring operated air intake shutoff valve that provides emergency overspeed shutdown of a diesel engine. Mechanical failure or the presence of combustible vapors like hydrocarbons in the engine’s intake system may cause the engine to overspeed beyond control, causing severe damage to the engine or even explosion.
We offer the most comprehensive and diverse line of positive air shutoff valves.
In addition, our installation and activation kits are specifically engineered for your application.

APPLICATIONS
ISOV manufactures engine overspeed shutdown devices for every application, of which some typical are listed below:

* Drilling Rigs (Onshore & Offshore)
* Drilling Support Equipment
* Well Servicing Equipment
* Refinery Support Equipment
* Bulk Haulers and Tankers
* Mining
* Construction
* Material Handling
* Generator Sets
* Compressors

Read more about ISOV Valves here