Is the Stainless Steel LET-LOK® H-300 Needle Valve with Inch Connection suitable for temperatures up to +230°C and pressures up to 345 bar?

Yes. The Stainless Steel LET-LOK® H-300 Needle Valve with Inch Connection is suitable for operating temperatures up to +230°C and working pressures up to 345 bar. It is manufactured entirely from AISI 316 stainless steel with PTFE packing, factory tested, and fitted with inch LET-LOK® connections to ensure reliable, leak-free performance under those conditions.

Does the Stainless Steel LET-LOK® H-300 Needle Valve with Inch Connection support panel mounting without disassembling the needle and voiding the warranty?

Yes. The Stainless Steel LET-LOK® H-300 Needle Valve with Inch Connection supports panel mounting without disassembling the needle and voiding the warranty. Its design specifically enables panel installation while preserving the factory warranty, simplifying assembly and maintaining reliable, leak-free performance.

Stainless Steel LET-LOK® H-300 Needle Valve with Inch Connection

All products, Precision needle valves/

Additional information

Material	SS – stainless steel

The high-pressure needle valve is engineered for reliable performance in demanding applications, offering a compact form with an impressively high flow capacity. Designed for direct system integration or convenient panel mounting, it incorporates a V-type stem for precise open-close control and is factory tested to ensure consistent quality. Its innovative construction enables panel installation without disassembling the needle, preserving the manufacturer’s warranty and simplifying assembly. Manufactured entirely from durable AISI 316 stainless steel, including the stem and metal-to-metal sealing surfaces, the valve guarantees exceptional resistance to corrosion and wear. The PTFE packing seal enhances tightness and durability, while the valve withstands operating temperatures up to +230°C and working pressures up to 345 bar. Equipped with inch LET-LOK® connections, it ensures secure, leak-free installation, making it an ideal choice for industries requiring safety, reliability, and long-lasting performance under extreme conditions.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HM-H300-SS-LC-04-VRS	H-300 needle valve, 2 x LL 1/4", SS	4	345	In stock	Enquiry
HM-H300-SS-LC-06-VRS	H-300 needle valve, 2 x LL 3/8", SS	6	345	In stock	Enquiry
HM-H300-SS-LC-08-VRS	H-300 needle valve, 2 x LL 1/2", SS	6	345	In stock	Enquiry

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The high-pressure needle valve is engineered for reliable performance in demanding applications, offering a compact form with an impressively high flow capacity. Designed for direct system integration or convenient panel mounting, it incorporates a V-type stem for precise open-close control and is factory tested to ensure consistent quality. Its innovative construction enables panel installation without disassembling the needle, preserving the manufacturer’s warranty and simplifying assembly. Manufactured entirely from durable AISI 316 stainless steel, including the stem and metal-to-metal sealing surfaces, the valve guarantees exceptional resistance to corrosion and wear. The PTFE packing seal enhances tightness and durability, while the valve withstands operating temperatures up to +230°C and working pressures up to 345 bar. Equipped with inch LET-LOK® connections, it ensures secure, leak-free installation, making it an ideal choice for industries requiring safety, reliability, and long-lasting performance under extreme conditions.