Stainless Steel LET-LOK® H-300 Control Needle Valve with Metric Connection
The high-pressure needle valve is engineered for reliable performance in demanding applications, offering a compact construction that ensures easy integration into systems or direct panel mounting. Its innovative design allows installation without removing the needle, maintaining the full Manufacturer’s warranty and guaranteeing long-term durability. Equipped with a regulating stem, the valve provides precise flow control while supporting a relatively high flow rate, making it an excellent choice for both industrial and laboratory environments. Manufactured entirely from premium AISI 316 stainless steel, including the body, stem, and metal-to-metal sealing surfaces, it ensures superior resistance to corrosion and mechanical wear. The PTFE packing delivers secure sealing and extended service life, even under intensive use. Designed to operate at temperatures up to +230°C and withstand working pressures of up to 345 bar, this valve offers exceptional reliability in high-stress conditions. The metric LET-LOK® connection system ensures quick, leak-free installation, reducing downtime and enhancing operational efficiency. Each unit undergoes rigorous factory testing to guarantee consistent quality, safety, and performance, making it a trusted solution for critical applications where precision and durability are essential.
List of product variants
| Article number | Product variant name | Nominal inner diameter | Working pressure [bar] | Enquiry |
|---|---|---|---|---|
| HM-H300-SS-LM-06-RRS | H-300 needle valve, 2 x LL 6 mm, SS, adjusting stem | 4 | 345 | |
| HM-H300-SS-LM-08-RRS | H-300 needle valve, 2 x LL 8 mm, SS, adjustment stem | 4 | 345 |
The high-pressure needle valve is engineered for reliable performance in demanding applications, offering a compact construction that ensures easy integration into systems or direct panel mounting. Its innovative design allows installation without removing the needle, maintaining the full Manufacturer’s warranty and guaranteeing long-term durability. Equipped with a regulating stem, the valve provides precise flow control while supporting a relatively high flow rate, making it an excellent choice for both industrial and laboratory environments. Manufactured entirely from premium AISI 316 stainless steel, including the body, stem, and metal-to-metal sealing surfaces, it ensures superior resistance to corrosion and mechanical wear. The PTFE packing delivers secure sealing and extended service life, even under intensive use. Designed to operate at temperatures up to +230°C and withstand working pressures of up to 345 bar, this valve offers exceptional reliability in high-stress conditions. The metric LET-LOK® connection system ensures quick, leak-free installation, reducing downtime and enhancing operational efficiency. Each unit undergoes rigorous factory testing to guarantee consistent quality, safety, and performance, making it a trusted solution for critical applications where precision and durability are essential.
Additional information
| Material | SS – stainless steel |
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Additional information
| Material | SS – stainless steel |
|---|



