laser safety valve factory

Well-known companies worldwide rely on LESER safety valves. With its sole focus on overpressure protection, the safety valve specialist LESER is one of the international market leaders.

With more than 1,050 employees and 130,000 safety valves produced per year, LESER is the largest manufacturer of safety valves in Europe and one of the leading companies in its industry worldwide.

LESER offers spring loaded and pilot operated safety valves for all industrial applications according to the Pressure Equipment Directive and ASME XIII. Major companies in the chemical, oil and gas, petrochemical, energy, technical gases, LNG/LPG, pharmaceutical, food and beverage, shipbuilding and heating and air conditioning industries use LESER safety valves.

LESER safety valves are developed for the international market in Hamburg and manufactured in the modern plant in Hohenwestedt/Germany. In addition, LESER produces safety valves to the same standards in India and China for the local markets. Nine subsidiaries and offices in Europe, America, the Middle East and Asia as well as authorized contacts in over 80 countries guarantee competent customer advice and fast, reliable deliveries.

In 1885 the company developed its first safety valve for the protection of steam boilers. Even at that early date, LESER products were working for the safety of man and the environment. Since the 1970"s LESER has specialized only in safety valves.

LESER is the largest manufacturer of safety valves in Europe and one of the leading companies in its industry worldwide, backed by more than 200 years of tradition. LESER offers spring loaded and pilot operated safety valves for all industrial applications according to the API, PED and ASME VIII. Major companies in the oil and gas, petrochemical, chemical, energy, technical gases, LNG/LPG etc use LESER safety valves. LESER safety valves are developed for the international market in Hamburg and manufactured in the modern plant in Hohenwestedt/Germany.

Safety valves from the API product group meet all the requirements of API 526 such as standardized capacity, nominal diameter, and center to face dimensions which offers 100% compatibility. Because of their robust construction, they are especially suitable for being constructed from special materials such as Duplex, Monel, and Hastelloy.

API 526 is a purchase specification in which the nominal diameters, flange pressure ratings, center to face dimensions, flow areas, body and spring materials and their service limits are stipulated for "API safety valves" API safety valves are used worldwide in the petrochemical industry, both on- and off-shore. These applications are characterised by standardised plants, blow-down systems and long pipework sections. The LESER type 526 combines the requirements of the API standards and the ASME Code with the tried and tested service reliability of the LESER range.

Safety valves from the Clean Service product group were specially developed for the food, beverage, and pharmaceutical industries and meet all the relevant standards and regulations such as DIN 11866 or ASME BPE. With a low deadspace inlet area, the unique LESER HyTight assembly, and the optional pneumatic lifting device you have very good cleanability (CIP, SIP). With a large selection of aseptic connections (threaded, flanged, or clamped) the valve can be optimally fitted to different requirements.

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 (CIP process).

Safety valves from the High Performance product group offer especially high capacity for their size. With a large quantity of nominal diameters (DN), pressure ranges and product options, they have proven themselves as a universal safety valve for many applications.

Full Flanged Safety Valves with Flanged Connections open rapidly to the full design lift.They are used in particular for vapours and gases, in applications where the maximum mass flow has to be discharged rapidly. LESER type 441 is suitable for almost any industrial application, and are worldwide one of the best selling spring-loaded flange type safety valves.

Type 441 ANSI: Cast steel construction with ANSI flanges. Two body materials: stainless steel and cast steel. Center to face length in accordance with API 526, greater discharge capacity than standard API valves.

PTFE-lined safety valves from the Critical Service product group are utilized for highly corrosive media such as chlorine, acids, and lyes. With their highly resistant lining they offer a safe solution for corrosive media.

The product group Compact Performance includes threaded and flanged safety valves with compact dimensions for economical protection of small and midsized capacites. Due to its many orifice diameters, seals, and connections this product group offers a very wide area of application.

Type 437:Safety relief valve spring loaded for small mass flows (e.g. thermal expansion and overflow). Body material: stainless steel, 430 chrome steel.

Type 459/462Full lift safety valve spring loaded for the medium mass flow range (e.g. small scale or pilot plant). Two body materials: stainless steel or steel.

Change-over valves from the Best Availability product group increase plant availability.Change-over Valves are used when a plant shutdown is impossible or undesirable for process engineering or commercial reasons. With change-over valves, it is possible to switch over between parallel safety valves without interrupting operation, so as, for example, to perform maintenance work. The design of the change-over valves ensures: low pressure losses on discharge flow (3% criterion) adequate open passage in any position during the change-over process stable operation of the downstream safety valves The combination of LESER change-over and safety valves has been comprehensively tested on full flow test labs.

Safety valves from the Modulate Action product group feature a standard or proportional opening characteristic. They minimize medium loss when opening and are used for protection from pressure peaks, thermal relief, and liquids.

Relief and Safety Relief Valves with Flanged Connections are ideal relief valves for medium mass flows. Their large proportional range leads to consistent functioning and relief of pressure peaks, particularly with liquids. Both proportional and safety relief valves are characterized by particularly stable operation.

A safety valve is an important part of any engineering system or industrial installation working with media under high pressure, it is the safety of the operating personnel, the exclusion of equipment destruction and emergency situations.

Conveniently, the safety valve supplier can service, adjust or reset the pressure, and can repair and replace parts if necessary. LESER safety valves are known all over the world and are widely used in industry and heating. To provide customers with more options for service safety valves, OPEKS Energosystems, the official distributor of LESER, uses a proprietary set of LESER equipment and tools to set up and maintain valves at its own production facilities.

Setting the required response pressure of the safety valve consists of the following main steps:Fastening the safety valve using a standard mount in a tuning stand. Preparing to set up.

Valve assembly. Checking the tightness of the valve in the closed position, at a pressure less than the design one to prevent leakage of the working medium. Valve seat polishing, other work if necessary.

Setting up safety valves at the OPEKS production facility allows us to provide a shorter delivery time, shorten the period of service work, provide more opportunities and better service to our customers. Also, the company"s warehouse regularly maintains new valves for water, gases of different diameters with a response pressure, which is most often found in inquiries.

Cooperation with OPEKS Energosystems, which supplies and maintains LESER safety valves, as well as manufactures heat exchange equipment, modular units, steam condensate systems and other heat and power equipment, favorably stands out for its great opportunities for our Clients.

Established in the year 2016, we “A R Enterprise” are a notable and prominent Sole Proprietorship firm that is engaged in manufacturing a wide range of Ball Valve, Butterfly Valve, Gate Valve, Globe Valve, etc. Located inVadodara (Gujarat, India), we are supported by a well functional infrastructural unit that assists us in the manufacturing of a wide range of products as per the set industry norms. Under the headship of "Mr. Altaf" (Proprietor), we have gained a remarkable and strong position in the market.

W&O, a global supplier to the marine and upstream oil and gas markets for pipe, valves and fittings, valve automation, and engineered solutions, has partnered with LESER in an exclusive distribution agreement to bring its safety relief valves to the United States maritime industry. This marks W&O’s first exclusive distribution agreement with a direct original equipment manufacturer of safety relief valves in the company’s 40-year history.

“W&O is excited to announce this partnership with LESER, and to do so at one of the industry’s marquee events, the International WorkBoat Show”, said Michael Hume, president and CEO of W&O. “The LESER safety relief valves are German-engineered and manufactured, and will be an excellent addition to the tank venting solutions we currently bring to our customers. This partnership is a natural fit for W&O, as LESER is equally committed to meeting customer needs, providing the highest quality product and engineering solutions to fit specific applications.”

The W&O and LESER partnership will prove very beneficial to customers for numerous reasons, including: short delivery times due to high stock of raw material and finished goods at the Charlotte, North Carolina, LESER facility, a variety of solutions from eight product groups and 40 safety relief valve types, and customer support offered by both companies.

The Leser Flanged Safety Relied Valve Series in accordance to API 526 are designed to meet all applications which require API. These valves open rapidly with an overpressure of max. 10% to full design lift and have a maximum blowdown of 7% for steam/gas service and 20% for liquid service. Service for protection of processes and equipment.

Since the 1980"s LESER has been the number one supplier for safety valves in the world and strengthens this position each year. LESER currently has 7 different locations worldwide and continiues to expand its international presence in an effort to supports its growing customer base.

High performance relief valves, compact relief valves, high efficiency relief valves, modulate action relief valves, clean service relief valves, critical service relief valves.

With almost 200 years of history, LESER has manufactured its safety valves to reflect state-of-the-art design and developed a product range to provide solutions for all sectors of industry. Customer satisfaction is the impetus behind LESER’s progress. LESER defines its products based on 7 pillars of achievement; rapid availability, product range, global network, quality, reliability, price and sustainability.