Jun 19, 2014 free fix how to diagnose and adjust an ac compressor clutch in car truck blows cold then warm duration. If installed on a high pressure line, bleed off excess pressure before attempting reset. Series 2105 automatic gas shutoff valves are used in gas water heater applications to protect against overheating water in the domestic hot water supply heating system. Model 302 series 114 horizontal valve specification sheet. Sold by eplumbing products and ships from amazon fulfillment. The valve reduces the potential for fire or explosion due to the release of natural gas into a structure where gas lines, gas fixtures, or gas appliances. The horizontal motion of an earthquake causes the ball to move from the center of the support. Valves with electrical switchoff function and manual reset function. Information about seismic shutoff valves, including pacific and little firefighter. Pacific seismic products earthquake actuated 3 way valve, for use with dry air or nitrogen. Koso earthquake valves are intended to close in the event of an earthquake to prevent gas flow into a structure where earthquake damage may have occurred.
If you have questions about your insurance company homeowner requirements, contact your insurance company or agent. Return to earthquake valvesthese valves are earthquakesensitive gas shutoff valves. Earthquake shutoff valves information on gas safety in a natural disaster. Earthquake wrenches with fixed openings may not fit your valve, so an adjustable type is ideal. California valves have a simple operation principle, remain closed when tilted or bumped, and must be manually reset, which enables safety inspections for. Gas control technologies is the industry leader in the installation of automatic natural gas shutoff valves to protect personnel and property in the event of an earthquake. One of these steps is the installation of an earthquake shutoff valve, which automatically shuts off natural gas service to your property when an earthquake occurs. They performed well during the 1994 northridge earthquake.
These valves are earthquake sensitive gas shutoff valves. This allows the balls mass to act upon the movable pipe of the trip mechanism, activating the valve and initiating closure. To reset this valve, simply turn the large red lever on the. To use our valves with another gases except methane, use the calculation below. Our valve consists of a swing check valve arrangement with an accelerationsensitive triggering mechanism. Because no one can accurately predict them, we developed this automatic gas shutoff valve that activates and shuts off your home or business natural gas supply in the event of a 5. These valves are earthquakesensitive gas shutoff valves.
A brief explanation of how the topoftheline california gas shutoff valve adds important safety to gasfed homes during an earthquake. When an electric signal is applied to the solenoid coil, the valve switches. Koso is synonym of quality and performance for more than 30 years. Pacific seismic products earthquake actuated gas shutoff. These are applicable both to utilitysupplied natural gas and to gas from liquefied petroleum gas lpg. To minimize the possibility of an unauthorized person tampering with the valve, do not keep wrenches near the gas meter. Earthquake valves paris henry county public utility district. They are designed to automatically shutoff the gas as soon as an earthquake reaches a force capable of. Every valves triggerpoint is precision tested by computerized seismic simulation. Earthquake valve and restoring gas service after a valve activates may be found in the natural gas company web site in the regulatory section section, earthquake valve service.
If a customer installs an excess flow gas shutoff valve or earthquake actuated gas shutoff valve, the valve must be certified by the state of california. When it comes to buying an earthquake or excessflow valve, keep the following things in mind. The trip mechanism consists of a steel ball resting on a tapered cupshaped support. In japan, the installation of seismic actuated gas shutoff valves has also been. Socalgas charges a fee to reset valves and relight pilot lights when your earthquake shutoff valve has closed due to a non earthquake occurrence. These are manual shutoff valves, earthquake sensitive automatic shutoff valves, and excess flow automatic gas.
The valve is then manually reset once a safety inspection has been done and youre sure there are no leaks in the building. Concentric paraseal valves paraseal c this paraseal valve is high performance butterfly valve of high durability, high seating performance. Pressure relief valve engineering handbook chapter 2 terminology safety valve a pressure relief valve characterized by rapid opening or closing and normally used to relieve compressible fluids. Koso includes the most complete line of mechanical earthquake valves on the market today. Koso hammel dahl is a worldleading manufacturer of highquality control valves, actuators, and accessories for the automation market. Mcs measurement control systems is the number one distributor of the number one gas meter in the world. Koso america, top management and all employees, are committed to following and continually improving upon a quality management system and quality objectives that drive us to produce control valve solutions that meet industry standards, reliable deliveries and the ability to modify our products to meet our customers unique requirements.
Valves with manual reset function hafner pneumatik. Return to earthquake valvesthese valves are earthquakesensitive gas shutoff. Gasoff flow direction arrow caosa level indicator height width nominal pipe size th reads per inch cam application max. Flanged earthquake gas shutoff valves koso earthquake shutoff valve. Springs assist the valve flapper to close and gas pressure assists in holding the valve disc in the closed position. The valve shall close within five seconds when subjected to a horizontal, sinusoidal oscillation with the following characteristics.
Manual reset high flow efficiency with minimal pressure drop positive closure, soft seal seating visual openclose indicator made in the usa meets asce 2597 the valve shall close within five seconds when subjected to a horizontal, sinusoidal oscillation with the following characteristics. They are intended to close in the event of an earthquake to prevent gas flow into a structure where earthquake damage may have occurred. A manual reset screw allows for the raising of the shutoff mechanism. In this video from the fm global know more risk series, learn what a seismic gas shutoff valve is, how it works, and why it is important to install one on natural gas piping in earthquake prone. Seismic activated valves are designed to automatically shutoff the flow of gas to your facilities should an earthquake of 5. May 01, 2011 a brief explanation of how the topoftheline california gas shutoff valve adds important safety to gasfed homes during an earthquake. Reset instructions for all psp valves are available for download. Steel earthquake valve agv75, steel to shut off a gas supply automatically when triggered to do so by a 5. In addition to the v817, the g120 and g series valves are used throughout cryogenic plants outside of the cold box. Earthquake valve do you have unmanned equipment in seismic zones. Pacific seismic products proudly manufactures psp valves, which are the industryleading standard in seismicactuated valves for residential, commercial, and industrial applications.
The california valve koso the california valve koso seismic valves are gas shutoff valves that are intended to automatically close in the event of an earthquake to prevent gas flow into a structure where earthquake damage may have occurred. Koso the california valve these valves are earthquakesensitive gas shutoff valves. To open the valve, first verify that the main gas shutoff valve is closed, then gently rotate the reset cam located on the side of the valve in the direction indicated by the to open arrow, which will open the pressurerelease poppet in the center of the valves disc. Pacific seismic products 301 series horizontal earthquake. This will greatly reduce potential risk of explosion or fire due to loss of gas line integrity or uncontrolled flow of gas after a major earthquake. The koso valve is a mechanical device which, when installed on a buildings gas meter. Koso remains a leader in analog and digital technology. Seismic shutoff valves mbs engineering natural gas experts. Seismic safety products instructions earthquake gas shutoff. It will stay in this position no matter if the electric signal cutsoff. Cryogenic service control valves at koso hammel dahl, we have a long reputation for designing and supplying premier control valves for use in cold box and other cryogenic services. Pacific seismic products 301 series horizontal earthquake gas shutoff valve, 1inch.
Most valves manufactured by the 12 certified companies are calibrated to shut off the flow of gas into a home during an earthquake measuring at least 5. An earthquake valve or seismic valve is an automatic method to shut off the low pressure regulated gas supply to a structure during a major earthquake andor if a pipe is broken. Steve gemmell of earthquake tech explains the bracing. It is an immersiontype valve that automatically shuts off the gas supply to the heater if. This will greatly reduce potential risk of explosion or fire due to loss of gas line integrity or uncontrolled flow. Instructions for resetting assi safe t valve earthquake activated gas shutoff valve this is the one valve for which the manufacturer insists that there is no need to manually close the main gas valve to the meter before resetting the automatic valve. During an earthquake with structural movement of sufficient intensity, the koso seismic valve will shutoff the gas, preventing an explosion andor fire. Placement of the support bracket must be between the gas meter and the seismic gas shutoff valve, with the bracket as close to the valve as possible. This will greatly reduce potential risk of explosion or fire due to loss of gas line integrity or. Hold the reset cam in this position until the pressure equalizes across.
A variety of useful resources, including kent introl product brochures, case studies and exhibition details. Strand earthquake california koso seismic gas shutoff valves. The group acquired kent introl in 2005, and whilst we retain a great deal of independence the acquisition strengthened kosos global reach as a manufacturer of valves and equipment. They generally are installed on the exterior of a residence or business in order to stop gas. Kosocalifornia valve seismic shutoff valve pacific. Valve parts in contact with fluids body brass stainless steel stem 303 stainless steel springs 302 stainless steel pilot seat cartridge ca when listed disc, diaphragm, seat nbr, pa, ptfe, or stainless steel, as listed 32 series 80378308 8310 manual reset special service pilot 167 features high flowhighpressure bodies with manual reset to. Model 317 series 6 flanged horizontal valve specification. How to reset instructions product installation instructions sheets agv 075250 reset instructional video vagv 075200hp reset instructional video nagv 075125 reset instructional video fagv 300600 reset instructional video more videos coming soon. A licensed plumbing contractor must install it according to the manufacturers. Pacific seismic products 300 series horizontal earthquake gas. Seismic safety products manufactures and sales the northridge earthquake actuated natural gas and propane shutoff valve that prevents fires and explosions caused by. Relief valve a pressure relief valve characterized by gradual opening or closing generally proportional to the increase or decrease in pressure. California valves meet california standard 12161 for earthquake actuated automatic gas. Model 315f60 flanged valve horizontal flow 712 california seismic valves are ul listed in the usa.
Pacific seismic products proudly manufactures psp valves, which are the. Threaded earthquake valves pacific seismic products. They are designed to remain closed until manually reset. The earthquake valve support bracket must be secured rigidly to the building structure. The valves are intended to be mounted in the gas line upstream or downstream of the gasline pressure regulator and gas meter outside the structure. Bistable valves, actuated from one side by solenoid, from the other side manually. California formerly known as koso seismic gas shutoff valves are installed throughout the u. Hold the reset cam in this position until the pressure equalizes across the valve s disc. Seismic shutoff valves mbs engineering natural gas. Koso india wholly owns an internationally accredited and fully equipped steel foundry in coimbatore to supply world class castings in various metallurgy including alloy steel, stainless steel, duplex, inconel, c12a etc to provide customised solution for our valve product lines. These valves do not replace the manual upstream shutoff valves provided in the gas service line. To open the valve, first verify that the main gas shutoff valve is closed, then gently rotate the reset cam located on the side of the valve in the direction indicated by the to open arrow, which will open the pressurerelease poppet in the center of the valve s disc. Easy 18 turn of coin slot for emergency manual shutoff.
Engineers at asme determined that pipes can break in the ground at 5. An earthquake valve automatically shuts off the flow of regulated gas should the meter or pipes be damaged due to earthquake or other heavy tremors. Manually turning off the gas service riser valve is the most common method to stop the flow of gas serving a building, in case of an emergency such as an earthquake. The most common device that home and business owners can install to protect their property are earthquake valves also called seismic valves. Seismic safety products stabilizer earthquake gas shutoff. Pacific seismic products 301 series horizontal earthquake gas. Npt valve reset visual status window 9424499 9420999 4. Their core focus is on the production of control valves, instrumentation and equipment. Our valve consists of a swing check valve arrangement with.
After pressure has been reduced, turn reset shaft in the direction indicated. Valve stem and actuator output shaft connection is inside the cylinder. Resetting an earthquake valve on a propane tank 1 youtube. It has several different seal ring constructions suitable to various service applications. Earthquake valves, or seismic shutoff valves, are used as a safety device to shut off natural gas lines in the event of an earthquake. Flow rate for the gas you need fluid hydrogen town gas carbon monoxide nitrogen air oxygen lpg butane k 3,04 1,17 0,81 0,80 0,78 0,76 0,63 0,56 flow conversion equal earthquake valve emv series 0.
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