Heat tape should not be used is lieu of heated valve enclosure to protect against dry pipe valve and supply piping freezing. N instructions for installation, operation, care and maintenance 4 100mm 6 150mm valve with model d trimmings listed by underwriters laboratories, inc. Available bare, pretrimmed, as a vic quick riser or in a series 745 firelock firepac cabinet. Reliable also produces a broad range of valves including alarm, dry, deluge, preaction, and check valve that control water flow to sprinkler systems and actuate alarm. The model rcw dry valve is used as an automatic water control valve in dry applications. A fire alarm sounds prior to the flow of water from a sprin. Reliable dry pipe valves from fire protection centre suppliers of fire sprinklers and flow control products part of the supply centre network. Dry system technical manual for operation, maintenance and. For more information about how your data is handled, see our privacy policy. Viking dry pipe valves are available in three configurations. There are two principal types of quick opening devices accelerators and exhausters. The reliable model d dry pipe valve makes pos sible the installation of automatic sprinkler sys tems in buildings in which freezing temperatures prevail. The valve combines a positive latching clapper and air plate assembly with a differential airtowater seat design. Aig programs loss control bulletin sprinkler system drypipe valves, flow and trip test procedure nfpa 25, standard for the inspection, testing, and maintenance of waterbased fire protection systems, published by the national fire protection association nfpa, requires that a partialflow trip test of a drypipe system be conducted annually.
For dry pipe sprinkler systems with volumes greater than 2839 l 750 gal, provide calculations for water delivery time. Hopefully with todays post if youve been in that same boat theres enough to better understand the basic components of a dry pipe valve. At the end of its life, the steel may be almost fully recycled, supporting your green policies. Zekelman industries wheatland tube is a division of zekelman industries, the largest independent manufacturer of steel hollow structural. Reliable model d dry valve datasheet fpc datacentre. Reliable model ex low pressure dry pipe valve system.
A differentialtype dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water pressure to system air pressure at which the fire protection sprinkler system is actuated. Automatic 6 model 39a dry pipe valve basic trim setup 396d with manual. Approved by factory mutual research corporation, and other fire insurance and governmental agencies in the united states and foreign countries. Metric flanged inlet and outlet the reliable model d dry pipe valve makes possible the installation of automatic sprinkler systems in buildings in which freezing temperatures prevail. If it aint broke, dont fix it the victaulic patent has run out and vision has picked up the great design and history of the vic 005h style rigid grooved coupling. The reliable model ddxlp dry pipe valve is a hydrau lically operated. The time duration from the first sprinkler opening to the dry pipe valve opening is the valve trip time or, more commonly referred to as, the airtrip time. The deluge system is similar in arrangement to the preaction system, except the sprinklers are open i. The reliable model ddxlp dry pipe valve is a hydraulically operated. Failure to follow instructions and warnings can result in. Dry pipe systems are a very effective and reliable component in your fire protection system, however additional maintenance is. Approved by fm approvals, and other fire insurance and governmental agencies in the united states and foreign countries. Ive never trimmed a dry valve nor have i tested or drained a system myself.
Unlike conventional differential style dry valves, the pneumatic system pressure when using the model ex valve can be set considerably lower. Electrical operation with provision for manual operation at deluge valve location. The proper air pressure should be maintained in the system at all times. Bulletin 335 model ddxlp dry pipe valve system 8 200mm.
Us6557645b1 dry pipe valve for fire protection sprinkler. Dry pipe valve system reliable automatic sprinkler co. Dry pipe sprinkler systems are usually installed in unheated buildings or where there is the possibility of sprinkler pipes freezing. Dry pipe valves are designed so that a moderate amount of air pressure will hold back a much greater water pressure. Pressure dry pipe valve front hilo air pressure supervisory switch external reset knob air pressure relief valve water flow pressure switch pneumatic ball drip velocity check valve main drain condensate drain valve reliable model ex low pressure dry pipe valve back.
In operation, the model ad1 drain valve is normally open to atmosphere to provide a visual indication. Affix the sign for the alarm control valve either onto the retard chamber or the alarm control valve. The reliable model ex low pressure dry pipe valve is a hydraulically operated, mechanical latching clappertype valve designed for use as a primary control valve in a dry pipe system. The reliable model a dry pipe valve makes possible the installation of automatic sprinkler systems in buildings in which freezing temperatures prevail. Reliable wet system valves are designed to control sprinkler systems in areas that are temperature controlled to at least 40f 4c. Home reliable sprinkler ex reliable sprinkler ex instructions for installation,operation, care and maintenance page 1. This website uses cookies to improve your experience. Remove all plastic thread protectors from the openings of the dry valve. For connection to model ldx dry pipe valves, refer to bulletin 323. Failure to follow instructions and warnings can result in serious personal injury, property damage, andor product failure. We recommend that clamping ring unions are screwed in using a drop of oil.
Ensure that the alarm pipe to the mechanical alarm is properly secured. L of riser to front of acceleratortrim is 11 c figure 2 figure 3 installation of accelerator the reliable model b1 accelerator is quickly attached to the reliable model d 4 and 6 dry pipe valve by using the bd2 accelerator. It op er ates on a pres sure dif fer en tial sys tem. Design of dry pipe sprinkler systems to meet the water. A range of reliable fire sprinkler control valves ex stock. Reliable model d dry pipe valves are installed in the. Sprinkler system dry pipe valves inspection and testing checklist. Dry systems have pressurized air in the sprinkler piping. For connection to reliable models b, c1 or c2 dry pipe valves or other dry pipe valves, the general principle of the reliable accelerator trimmings should be used as far as pipe size, accelerator and trim component location are concerned. Reliable s model b1 accelerator is described in greater detail in bulletins 320 and 322. Model dpv1 external reset differential dry pipe valve sizes. Bulletin 320 model b1 b accelerator with integral accelo. A reliable air supply is necessary to allow the dry pipe system to remain in service and maintain the necessary pressure differential between the air and water. The time duration from the first sprinkler opening to the drypipe valve opening is the valvetrip time or, more commonly referred to as, the airtrip time.
Here the air pressure buildup, coupled with the pres sure of the water supply, opens the dry pipe valve clapper permitting the water to flow instantly to the operated sprinklers. Provided as a trim component for these valves, the model ad1 automatic drain valve is used to automatically drain the normally dry alarm lines. For drypipe sprinkler systems with volumes greater than 2839 l 750 gal, provide calculations for water delivery time. Resetting firematics dry pipe valve close main controlling valve or post indicatorto shut off water supply to sprinkler system. This is designed to be used as a primary control valve in a dry pipe system.
Dry pipe, deluge, preaction valves and accessories the georgia. Actually, the enclosure need merely provide working room on all sides of the drypipe valve, such as 30 inches to all walls from the valve. The reliable model ddxlp dry pipe valve is a hydraulically operated, differential latching clappertype valve see fig 1. In these dry systems, when a fire occurs a dry pipe valve operates and allows water to enter the system, replace the air, and be discharged onto the fire. The trim set used with the model ddxlp dry pipe valve contains the reliable model lp dry valve actuator releasing device.
Emergency station, the model a hydraulic manual emergency. The globe model rcw dry valve is a hydraulically operated external resetting differential latching style valve. Apply a small amount of pipe joint compound or tape to the external threads of all pipe connections required. The pneumatic system pressure when using the model ex valve can be set substantially less than conventional differential style dry valves. Gong and electric bell may be shutoff by closing valve2. Model d dry pipe valve reliable automatic sprinkler co. Finally, connect the bypass line to the valve using the two union nuts waf24. In the dry pipe sprinkler valve arrangement disclosed in the specification, a dry pipe sprinkler line is normally supplied with air at a pressure in a range from about 5 psi to about 20 psi and is connected through a check valve, a dry pipe valve and a manual control valve to a water supply line. Ill also admit that for longer than i should have i never investigated the details of a dry valve. Verify that necessary trim charts and technical data for the dry valve and associated equipment are available.
The water transit time is the duration from the opening of the drypipe valve to water appearing at any open sprinkler. General reliable model d dry pipe valves are installed in the ver tical position in the main supply to the dry pipe system. The water transit time is the duration from the opening of the dry pipe valve to water appearing at any open sprinkler. The dry pipe valve prevents water from entering the pipe until a fire causes one of the sprinklers to operate. This type of piping system fills the pipes with pressurized air or nitrogen instead of water. A reliable air supply is necessary to allow the dry pipe system to remain in service and maintain the necessary pressure differential between the air and water sides of the dry pipe valve clapper. The model rcw dry valve serves as the primary water control valve installed in the water supply to a dry sprinkler system incorporating automatic closed sprinklers with compressed air or. Sprinkler system dry pipe valves flow and trip test procedure. Also, additional maintenance is needed to service both the preaction valve and its detection system. If this occurs, then the valve releases the air, water flows into the pipe, and the sprinklers release the water onto the fire. Wp law wednesday, december 23, 2015 a dry pipe valve system is often used in industrial and commercial fire sprinkler systems.
The best arrangement is a drypipe valve enclosure, suitably heated at all times to at least 40f. The dry pipe valve and related equipment must be in a heated location. The viking model f1 dry pipe valve is a latching differential valve used to separate the water supply from the dry pipe sprinkler system. For dry pipe sprinkler systems with volumes greater than 1893 l 500 gal up to 2839 l 750 gal, provide a quick opening device unless water delivery time calculations indicate the quick opening devices is not required. The reliable model a dry pipe valve makes possible the installation of automatic sprinkler systems in buildings in which freezing. Water also flows through the alarm outlet to the electric alarm. Quick guide for fire sprinkler inspection requirements key. Aug 22, 2018 ive never trimmed a dry valve nor have i tested or drained a system myself.
The reliable range of fire sprinkler control valves has proven on site performance and their ease of installation ensures they remain a popular choice with fire sprinkler installers. Reliable dry system valves are designed to protect areas subject to temperatures below 40f 4c. Dec 23, 2015 the air contains a remote valve, also known as a dry pipe valve, in a closed position. Vent sprinkler system by opening 34 inspectors test valve which is normally located at the top of the system. Reviewed by alda fiorentini for your safety and comfort, read carefully ebooks gem model f3021 dry pipe valve manual librarydoc16 pdf this our library download file free pdf ebook. Water from the supply instantly flows through the dry pipe valve into the sprinkler system piping. The model rcw dry valve serves as the primary water control valve installed in the water supply to a dry sprinkler system incorporating automatic closed sprinklers with compressed air or nitrogen within the system piping.
The basic trim set, priming chamber attachment and fill line attachment are described below and are separately ordered and supplied. This type of system, called the dry system, has air under pressure instead of water in the piping above the dry pipe valve. Thistypeofsystem,calledadrypipesystem, has air under pressure instead of water in the piping above the dry pipe valve. Reliable fire sprinkler control valves fire protection centre. Reliable sprinkler ex instructions for installation,operation. Conforms to en 122593 cethe reliable model d dry pipe valve makes possiblethe installation of automatic sprinkler systemsin buildings in which freezing.
Model ex low pressure dry pipe valve features product. Victaulic series 768n firelock nxt dry system check valve. The reliable model ex low pressure dry pipe valve is hydraulically operated, mechanical latching clappertype valve. Us2900029a us666070a us66607057a us2900029a us 2900029 a us2900029 a us 2900029a us 666070 a us666070 a us 666070a us 66607057 a us66607057 a us 66607057a us 2900029 a us2900029 a us 2900029a authority us united states prior art keywords clapper dry pipe valve trunnions automatic sprinkler prior art date 19570617 legal status the legal status is an. As the most common type of system, wet sprinkler systems have water available at the sprinkler, so when a fire occurs, and the sprinkler activates, water is discharged on the fire immediately. Series 756 firelock dry system check valve garitec. Steam heat can also be used if it is available from a reliable source that is in continuous service. If the sprinkler system is supervised, it is desirable to also supervise the enclosed temperature. For use where piping may freeze such as unheated warehouses, outdoor parking garages or stadiums. Reliable model ddxlp dry pipe valves, with associated trim, sizes 4 100mm, 6 150mm and 165mm, are rated for use at a minimum water supply pressure of 20 psi 1,4 bar and a maximum water supply pressure of 250 psi 17,2 bar. The air contains a remote valve, also known as a dry pipe valve, in a. Reliable model b drypipe valve as installed with trim. Series 756 firelock dry valve hang these instructions on the installed valve for easy future reference.
Us2900029a dry pipe clapper valves for automatic sprinkler. Low air pressures could result in accidental operation of the dry pipe valve. Dry sprinkler systems have compressed nitrogen or air in the system piping, with water under pressure held below the clapper of the valve. Sprinkler system dry pipe valves, inspection, and testing checklist regular inspection, testing, and maintenance of drypipe sprinkler valves and associated quickopening devices are critical to ensure effective performance of a sprinkler system. Dry system check valve 3 performance the chart below expresses the frictional resistance of victaulic series 756 dry check valve in equivalent feet of straight pipe. Material specifications frictional resistance nominal size inches actual mm equivalent length of pipe feet nominal size inches actual mm equivalent length of pipe feet 1 1 2 34. All inspections and tests should be performed in accordance with nfpa 25, standard for the.
K instructions for installation, operation care and maintenance 21 2 65mm valve with model a trim listed by underwriters laboratories, inc. Our steel fire sprinkler pipe contains recycled steel and provides decades of reliable service. Drain valve is designed for use with tfsbp dry pipe, deluge, and preaction valves. Dry pipe systems are a very effective and reliable component in your fire protection system, however additional maintenance is required.
Reliable sprinkler ex instructions for installation. The vision 001 rigid grooved couplings are available from stock at 2001 pricing. Table of contents georgia fire sprinkler association. Such an enclosure is depicted but its size has been exaggerated for clarity of constructional detail.
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