High-pressure relief valve (relief valve) H-900-HP series with adjustable discharge pressure. Available as CE/PED compliant products upon request.
The H-900-HP series is a high-pressure relief valve (safety valve). This valve is normally closed. It opens when the system pressure rises to the set level. It closes again when the system pressure drops below the set level. We offer a wide range of sealing materials to meet customer requirements. <Features> - Body material: Stainless steel 316 - Set pressure range: 50 to 6000 psi (0.344 to 41.3 MPa) - Maximum operating pressure: 6000 psi (41.3 MPa) - Relief pressure can be easily adjusted by the customer by turning the knob on the top of the valve - Supports a wide range of set pressure through spring replacement (identifiable by colored springs) - Connection: LET-LOK (compression fitting), pipe thread - Sizes: 1/4", 1/2" (new product) - Seal materials: Full fluorocarbon FKM (standard), Buna N, EPDM, polychloroprene (CR) - Options available for oxygen-free and completely oil-free compatibility - Options available for CE/PED approved products - Spare parts such as spring kits and seal kits are available *For more details, please download the PDF or feel free to contact us.
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For more details, please download the PDF or feel free to contact us.
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Applications/Examples of results
Regardless of whether it is gas or liquid, when the pressure on the process line rises to the set pressure level, the valve opens to protect the equipment from excessive pressure.
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Company information
Ham-Let, headquartered in Israel, has local subsidiaries in the United States, Canada, the United Kingdom, Germany, France, the Netherlands, Russia, Singapore, and Japan. The company specializes in products such as fittings, process valves, manifolds, ultra-clean diaphragm valves, high-purity fittings, pressure gauges, flexible hoses, filters, relief valves, sampling cylinders, and flanges, serving various industries including energy, oil, gas, turbines, chemicals, petrochemicals, natural gas, electronics, and analysis. It is a global company actively promoting M&A worldwide to increase its workforce and expand its business. Ham-Let Motoyama Japan, the Japanese branch, primarily operates in the electronics sector through direct sales and approximately 60 agents and distributors established nationwide. The company's main products for the electronics sector, ultra-clean diaphragm valves and high-purity fittings, are supplied from the Israeli headquarters factory via air freight twice a week, ensuring a steady supply and inventory, and are shipped daily nationwide from the logistics center in Tokyo. In recent years, the company has been focusing more on general industry and plant engineering by leveraging the resources of its group companies.
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