High Pressure Needle Valves

Specialloy is a stocking distributor of needle valves manufactured by Noshok and SAMI INSTRUMENTS. These manufacturers provide us with a mix of low, medium and high pressure needle valves. SAMI INSTRUMENTS low pressure needle valves are designed for liquid and gas flow control. Available in a variety of body styles, our valves are suitable for manual operation in temperature ranging from -73° C to 315° C ( from -100° F to 600° F ). Our needle valve lines are available in various sizes to satisfy different requirements. Pressure ranges from 6000-10,000 psi, as low pressure; 15000 psi, as medium pressure and up to 60000 psi, for our high pressure offering. Connections from 1/4" to 1/2" NPT threads, with non-rotating stems, which prevents galling and scoring. Stem sleeve and packing gland materials have been selected to achieve extended thread cycles and reduced handle torque. Standard materials of construction include 316 L cold-worked stainless steel and glass-filled PTFE.

Noshok produces both soft tip and hard seat needle valves, with pressure ranges of 6000PSI and 10000PSI. Compact size valve built for maximum durability and robust performance in the toughest applications. These valves are 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability. The soft tip valves feature a patented Delrin® non-rotating soft tip stem, and a back-up metal-to-metal seal. Available in zinc-nickel plated steel, electropolished stainless steel, and brass (brass only to 6000psi only). FKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE packing optional. All stems are 316 stainless steel. All stem threads are rolled for strength and ease of operation. Patented body-to-bonnet, metal-to-metal seal is designed to significantly increase the pressure range of the valve. Hard seat valves have a maximum pressure of 10,000 psi for stainless steel and steel models; 6,000 psi for brass. Available in zinc-nickel plated steel, electro-polished stainless steel and brass.