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LESER is a German manufacturer of safety valves based in Hamburg. The company has been producing valves for various applications for over 150 years.

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LESER GMBH, Willy-Lederer-Straße 5, 21109 Hamburg, Germany

LESER GMBH is a traditional German manufacturer of safety valves and fittings headquartered in Hamburg. Since its founding in 1879, the company has specialized in the development and production of high-quality valves for various industries. The product portfolio of LESER includes safety valves for pressure vessels, pipelines, and power plant applications. The products are characterized by reliability and durability, and they are used worldwide in the process industry, mechanical engineering, and energy technology.
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Safety Valve
Safety Equipment
Pressure Relief
Overpressure Valve
Shut-off Valve
Valve Technology
Process Safety
Steam Valve
Gas Valve for Sale

15 products

Product list

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LESER 4412.4544 safety valve

LESER safety valve model 4412.4544. Technical specifications for reliable overpressure protection in industrial systems. Availability and delivery time on request.
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LESER 4562.6044 safety valve

LESER safety valve 4562.6044 (PD-520) with flange connection for safe pressure relief in industrial systems. Inquire and order now.
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LESER 4412.4514 safety valve | pressure relief

LESER 4412.4514 high-performance safety valve with 16 bar set pressure, stainless steel housing, PTFE seal. PED compliant. Order now.
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LESER 4562.6044 safety valve

LESER safety valve 4562.6044 type 456. High performance and gas tightness for safe pressure relief in industrial plants. Order now.
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LESER 433 Type 433 Valve

LESER safety valve Type 433, DN20, PN16. Directly acting safety valve for liquids. Reliable overpressure protection for industrial systems. Buy...
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LESER 4331.4064 safety valve DN65 PN16

LESER safety valve type 433, DN65, PN16 with particle filter. CE compliant for industrial applications. Availability and delivery time on...
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LESER 5262.5814 safety valve NPS4

LESER valve 5262.5814, size NPS4 with material and test certificate, according to S/N 10679168. Reliable pressure protection. Inquire now.
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LESER 4332.4184 safety valve type 433

LESER safety valve type 433, model 4332.4184 (M33H03P2AX00H88H84H15H47H22H01) for modulators. Efficient overpressure protection. Availability and delivery time on request.
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LESER 4331.4054 Safety Valve Type 433

LESER safety valve Type 433, model 4331.4054, for industrial plant protection. Reliable pressure relief. Availability and delivery time on request....
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LESER Type 441 Safety Valve

LESER high performance safety valve type 441 DIN for steam, gases, liquids. Robust, DIN-compliant, precise. Direct acting. Buy now.
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LESER 4412.4534 safety valve

LESER safety valve type 441, model 4412.4534 according to DIN. Reliable overpressure protection for industrial plants. Availability and delivery time...
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LESER 4593.2522 safety valve

LESER safety valve 4593.2522 with order code H03X00V57V67N68H01 for industrial overpressure protection. Reliable and compliant. Order now.
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All products from LESER

15 products

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Trademark notice: All brand names, manufacturer designations and part numbers mentioned are the property of their respective owners and serve solely to identify the products offered. Such reference does not establish any partner or authorised-dealer status beyond any business relationship that actually exists.