Leser india, located in mumbai india, provides support and service. Typical applications for leser high performance safety valves are. Safety valves from leser india for industrial applications. Safety valve with small to medium capacities, best cleanability and a variety of aseptic connections. Now every safety valve is delivered within 4 daysincluding the. Learn interesting facts and information on safety valves. Their safety valves are used by leading companies in industries such as chemical, petrochemical, industrial gases, oil and gas production, and machine building, as well as the food and pharmaceutical industry. This site uses thirdparty website tracking technologies to provide and. Safety relief valves use a spring force to hold a disc against a nozzle. Pilot operated safety relief valves are designed with several features that differentiate it from traditional spring loaded safety relief valves with superior performance, and with a compact design are lighter weight and easier to install in most applications. Design and function of lesers new pilot operated safety valve modulate action version. The core business is the safety of pressurized facilities. Safety valves from leser india reliably protect industrial applications against overpressure.
Leser critical service relief valves cvi solutions. Safety valves for all industrial applications leser. The set pressure is adjusted by pretensioning this spring with the adjusting screw. Leser is a mediumsized, familyowned company, backed up by almost 200 years of tradition. Leser is a headquartered in hamburggermany and maintains a stateoftheartfactory. In a springloaded safety valve, the closing force is generated by a helical spring. Browse the product range or make an online enquiry. With more than 800 employees, leser is the largest manufacturer of safety valves in europe an. Safety relief valves manufacturer of safety valves, leser type safety relief valve, asme safety relief valve, water safety relief valve in india. High operating to set pressure ratio, high backpressure or low total height. Relief valve a pressure relief valve characterized by gradual opening or closing generally proportional to the increase or decrease in pressure. It functions by releasing volume of liquid from the plant, if preset maximum press.
Leser api flanged safety relief valves cvi solutions. A statistical analysis shows that the pressure relief systems on nearly half of the equipment in the oil, gas and chemical industries lacks adequate overpressure protection as defined by. Applications features and benefits codes and standards. We offer a wide selection of relief valves for any application. The safety relief valve srv is considered the last silent sentinel to protect from accidents which can cost life, property and important economic losses. Safety relief valves, pressure relief valve, supplier. Major companies in the chemical, oil and gas, petrochemical, energy, technical gases, lnglpg, pharmaceutical, food and beverage, shipbuilding and heating and air conditioning industries use. Click on engineering and you will find all the information in one pdf.
Leser is the largest manufacturer of safety valves in europe and a market leader worldwide. Fainger leser r2 2007 fl549 safety valves from leser. Since pressure relief valves are safety devices, there are many codes and. Leser worldwide high performance high the safety valve. Engineering is the technical manual for safety valves from leser. Leser offers springloaded and pilotoperated safety valves for all industrial applications according to the pressure equipment directive and asme viii. When the pressure drops below preset limit, the valve may automatically close to protect people and equipment. The valves relief of elevated liquid, gas, or steam pressures prevents damage to the system. Type 441, 442 din type 441, 442 din materials item component type 4411 4421 din type 4415 4425 din type 4412 4422 din type 4414 din 1 body 0. Standard factory delivery is 4 weeks, and a large inventory is based in charlotte, north carolina for quick shipment. The stateoftheart factory in paithan manufactures a complete range of safety. The company is headquartered in germany, and all manufacturing takes place in germany. Safety relief valve with integrated pipe work connection. High performance flanged safety relief valves series 441 series 441 full nozzle series xxl series 444 series 458 catalog high performance high performance catalog edition july 2016 3.
Leser high performance safety valves are the ultimate solution for all industrial applications for steam, gas and liquid. Safety valve, actuator, control unit improves the opening and closing characteristics of a safety valve. Flanged steel pressure relief valves according to api 526 18 relief and safety relief valves with flanged connections 20 safety valves with threaded. We are proud of our products, and deliveries, and our prices. Safety relief valves manufacturer exporter safety valves. Darshan valves manufacturer and exporter of differential safety relief valves like leser type safety relief valve, asme safety relief valve, water safety relief may 17. Safety valve a pressure relief valve characterized by rapid opening or closing and normally used to relieve compressible fluids. Metric values using the following conversion factors.
With a large quantity of valve sizes, pressure ranges and product options, they have proven themselves as a universal safety valve for many applications. Pipe work protection when direct vessel protection is impossible or not desired. Materials item component remarks type 4373 type 4374 1 base inlet body threaded connection 1. The valve opens when the system pressure force becomes greater than the closing force of the spring. Compared to standard full nozzle safety relief valves with high alloy trim, type 447 provides for a. Safety relief valves series 437 series 459 the safety valve. Leser safety valves are approved by a large number of authorities and classification societies e. Once a condition occurs that causes the pressure in a system or vessel to increase to a dangerous level, the pressure relief valve may be the only device remaining to prevent a catastrophic failure.
C, kenilworth, nj 07033 9732530100 is a leading sales representative distributor of process control products and services to the power, oil refining, industrial gases, chemical, food. Relief and safety relief valves with flanged connections 20 safety valves with. Maintenance the maintenance manual leser the safety. Safety valves pdf the primary purpose of a pressure relief valve is protec. Under normal system operating pressure, the valve will remain closed as the spring force is greater than the inlet system pressure force.
All components of critical service safety valves are made with. Since reliability is directly related to the complexity of the device, it is important that. Leser api safety valves of type 526 are designed, marked, produced and approved according to the requirements of the following regulations. The safety valves of the 48x series can be fitted with manually lockable lifting devices h4 to hold open at a small lift, and with pneumatic lifting devices h8 for automated systems. Safety relief valves are used to prevent overpressure in plant or equipments. Leser api safety valves the api product group represents full range of spring loaded safety valves acc. Two ring control and optional restricted lift feature. Lesers critical service valves are spring loaded safety relief valves developed in close cooperation with plant engineers and service specialists to protect highly corrosive processes and installations against inadmissible overpressure.
Their safety valves are developed for the international market at our headquarters in hamburg. Leser valve and parts inventory heritage global partners. Safety valves act as a failsafe for reciprocating plunger pump, pressure vessel and testing lines, etc. Engineering the technical manual leser the safety valve. The company started in germany in 1818 as a brass foundry and developed a product portfolio of components of mechanical equipment and machines during the industrial revolution. Safety valves and their operation there are two types of safety valves. Are one of the best selling spring loaded safety valve. Leser recommends that maintenance and repair be carried out by a larc leser authorized repair center. The extensive collection offers you information for almost all areas around the safety valve and is aimed at both occasional and advanced users. Furthermore, all leser high performance safety valves. Safety valve steam high capacity safety valve for saturated and superheated steam service.
Series 441 protection of chemical processes and equipment e. Safety valve with packed lever cap, h4 flanged type flf549 fl 549 6 fainger leser april 2006 603 h e d 60 1 48 61 57 7 2 8 14 9 54 16 75 12 43 74 60 59 18 19 86 85 41 44. Leser compact performance threaded safety relief valves. Safety valves and its application requirements rev2. Leser api 526 series relief valve leser type 821 pilot operated relief valve. Leser is one of the worlds leading manufacturers of safety relief valves. Leser safety relief valves leser safety relief valves, proquip 4 mark rd. Relief valves are designed to open at a preset pressure or temperature level and relieve the system when it has exceeded the desired level. Leser clean service safety valves of type 483 are designed, marked, produced and approved according to the requirements of the following regulations. When the pressure exceeds preset limit, the valve may automatically unload. Safety relief valve 441, 442 ansi safety relief valve 441, 442 xxl 2 safety relief valve 441, 442 din 4 safety relief valve 444 ansi 6 leser original spare parts kits series 441, 442 dinansi 7 flange drillings series 441 8 flange facings series 441 9 safety relief valve series 457, 458 140 spare parts series 441 142. The openclose pressure is controlled by spring washer. With almost 200 years of experience, leser ranks among the pioneers of mechanical engineering in germany.
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