2026 | Catalog | Check valve technology WEH Check valves for liquid and gaseous media YEARS Quality & Safety WEH® - We Engineer Hightech

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1.2 Overview product families 1.3 Overview product series 1.4 Overview product series & connection configurations 1.5 Overview connection sizes 1.6 Overview pressure ranges 1.7 Overview housing material 1.9 Information on your request

As a leading manufacturer of fluid technology components WEH offers an extensive product range of high-performance check valves as well as special solutions developed individually according to our customers' specific needs. WEH® Check valves are used in numerous industrial sectors, for example in general industry in mechanical engineering involving CNC and plant manufacturers, microwave plants, pump and compressor manufacturers and water treatment plants. They are also used in the pharmaceutical, chemical and food industries, medical technology (e.g. in autoclaves), conveyor technology or in...

WEH® TVR300 Check valves Product family

In the following table you will find overviews of the available connection sizes of the WEH® Check valves. Connection sizes double ferrule fitting Connection size Connection sizes G-thread Connection size

Connection sizes NPT-thread Connection size Connection sizes metric thread Connection size

1.8 Availability In the following you will find the definition for the availability of our check valves in order to be able to offer you as a customer the greatest possible transparency in the procurement of your WEH® Check valve. The availability can be found in the ‘AVL’ feature in the respective ordering table. WEH® Ready-Made [ RM ] This product variant is in stock and therefore usually available at short notice. The average time* until the goods are ready for dispatch is 3 days. WEH® At-Hand [ AH ] This product variant can be configured individually after receiving your request. We achieve...

In order to be able to process your inquiry successfully, we usually need the following information: connection configuration / connection size connection configuration / connection size 3. Nominal bore (required flow rate) 4. Max. allowable operating pressure e.g. installation in a pipeline ... e.g. 50 units For reasons of precaution, we‘d like to point out that a) regarding the delivery of each article acc. to the respective order confirmation - in particular concerning ECE / EC79 articles -WEH does not confirm the fulfilment of additional requirements of the concerned end customer, b) WEH...

2 | Stainless steel check valves CHECK VALVES FOR GENERAL APPLICATIONS TVR200 of stainless steel for use with liquid and gaseous media Features & benefits f Stainless steel f High leak tightness f Valve seals are protected from media flow f Wear and corrosion resistant f Low-noise opening and closing f Low cracking pressure f Max. operating pressure up to 250 bar

2 | Stainless steel check valves The WEH® TVR200 Check valves made of stainless steel are ideal for applications with liquid and gaseous media up to max. 250 bar. The possible applications are just as varied as the design and the materials used. The check valves are available in various connection configurations, such as double ferrule fittings, female and male threads and a nominal bore of up to 6 mm. For larger nominal bores the WEH® TVR2 Check valve is available. Due to the high quality materials they are extremely wear-resistant, corrosion-resistant and durable. The check valves, which are...

2 | Stainless steel check valves * Please note that the cracking pressures may differ due to tolerances. The cracking pressure basically applies to the horizontal mounting of the check valve. For other mounting directions, the values can differ. Other designs on request

2 | Stainless steel check valves Inlet B1: double ferrule fitting / outlet B2: double ferrule fitting B1 / B2: double ferrule fitting Connection size: media inlet B1 = media outlet B2 Check valves of the preferred variant space: Part No.

Connection size: media inlet B1 = media outlet B2 resp. media inlet B1 * media outlet B2 Configurable check valves of the extended variant space: Below you will find possible examples of TVR200 check valves in the extended variant space. This offers further configuration options (connection configuration, connection size, cracking pressure, sealing material) beyond the preferred variant space. Further designs that do not correspond to the extended variant space can be requested individually. Please refer to chapter 1.9 Information on your request. Please note that the availability for individual,...

2 | Stainless steel check valves Inlet B1: female thread / outlet B2: female thread B1 / B2: Whitworth tube thread acc. to DIN EN ISO 228-1 Connection size: media inlet B1 = media outlet B2 Check valves of the preferred variant space: Further designs that do not correspond to the extended variant space can be requested individually. Please refer to chapter 1.9 Information on your request. Please note that the availability for individual, customer-specific check valves may vary.

Connection size: media inlet B1 = media outlet B2 Check valves of the preferred variant space: Further designs that do not correspond to the extended variant space can be requested individually. Please refer to chapter 1.9 Information on your request. Please note that the availability for individual, customer-specific check valves may vary.