Application scenarios of German Les LESER safety valve 4623.2912

Application scenarios of German Les LESER safety valve 4623.2912

Application scenarios of German Les LESER safety valve 4623.2912

LESER   4623 is a high-pressure safety valve model produced by LESER company, commonly used in pressure protection devices in industries such as petroleum, chemical, and natural gas. The valve body is made of stainless steel (1.4104/430) or alloy material (1.4404/316L), and can provide multiple specifications according to different working pressures, such as:

-LESER   4623.2922- Rated pressure 59   bar, material 1.4104/430

-LESER   4623.2904- Rated pressure 185   bar, material 1.4104/430

The connection method of this valve is mostly threaded (such as G1/2 "- G1", G3/4 "- G1"), which is suitable for safe discharge of small and medium-sized pipelines. It is often listed in the product catalog as a LESER 821 series high-efficiency safety valve, which has the characteristics of fast response, reliable sealing, and corrosion resistance, and is suitable for use under high pressure conditions.

For further technical parameters such as flow coefficient, valve body size, or selection manual, it is recommended to consult LESER's product manual or contact local distributors to obtain the latest technical documents.

Application scenarios of German Les LESER safety valve 4623.2912

The LESER 437/438/439/459/462 series is a spring-loaded micro opening safety valve, which is connected by threads or flanges and meets the requirements of API520 \ ASME \ PED standards. It is widely used in the fields of petrochemicals \ metallurgy \ power plants \ shipbuilding \ tobacco, etc.

Product features

Flange connection, DIN and ANSI standard flanges

Threaded connection, NPT/BSP/G standard thread

The nozzle and valve core are both suitable for handling steam, gas, and liquid simultaneously

The spring has a very wide adjustment range

Single stem, dual guide, center positioning ball design ensures excellent sealing and service life of the safety valve

The safety valve body adopts a dead zone free design, which avoids the possible residual medium and corrosion of the safety valve body during the discharge of the safety valve

The safety valve has fewer components, strong interchangeability, compact external structure, and easy maintenance

Equipped with a closed valve cover

The material of the safety valve body is CS, 430F, 316L, WC6, WC9

The nozzle and valve core of the safety valve are made of materials such as 304, 316, 317, 316L, MONEL, INCONEL, Hastelloy, etc., and all sealing surfaces are treated with Stellite hard alloy welding

The material of the corrugated tube is 316, 316L, 316Ti, INCONEL625, Hastelloy C

Having ASME certification, PED certification, and China Special Pressure Equipment Manufacturing License

Product Specifications

3 valve sizes from 1/2 "to 1"

D-type nozzle type

The maximum set pressure can reach 850 bar-g

Emission temperature ranges from -268 ℃ to 550 ℃

The flange pressure rating ranges from 150LB to 4500LB

Application scenarios of German Les LESER safety valve 4623.2912