2-Valve Block & Bleed Needle Valves
Description
NOSHOK announces the availability of our 2-Valve Block & Bleed Needle Valves, backed by NOSHOK’s exclusive three year warranty. With a 10,000 psi pressure rating (@200°F maximum), NOSHOK 2070 Series 2-Valve block and bleed hard seat valves combine isolating and venting in a single valve, eliminating the need for tubing and fittings. The block valve isolates the downstream process fluids, and the bleed valve exhausts upstream fluids enabling instruments to be removed without disturbing the permanent piping installation.Other features include: 1/4” NPT vent plug located 90° to the left, may be removed and replaced with exhaust piping to direct the fluids to a safe location 1/2” NPT connection, M-F, F-F configurations available, right venting optional Blow-out proof stem provides a secondary stem seal in the full open position Viton® O-Ring and Teflon® back-up ring stem seals All 316 stainless steel stems (even in steel valves) for extended service life Stem and bonnet threads are rolled for strength and ease of operation One-piece bonnet with a metal-to-metal seal to the valve body below the bonnet threads Bonnet lock pin to prevent accidental loosening Vinyl bonnet and stem dust cap 0.187 inch orifice size 4 standard and 5-3/8? extended length available Optional panel mount bonnet and panel nuts All NOSHOK Valves are 100% Helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability.
Specs
* Combine isolating and venting in a single valve, eliminating the need for tubing and fittings * Block valve isolates the downstream process fluids, and the bleed valve exhausts upstream fluids enabling instruments to be removed without disturbing the permanent piping installation * The 1/4" NPT vent plug is located 90° to the left may be removed and replaced with exhaust piping to direct the fluids to a safe location * 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability * 10,000 psi hard seat pressure rating (@ 200°F maximum) * Blow-out proof stem provides a secondary stem seal in the full open position * Viton® o-ring seal and Teflon® back-up ring below the stem threads to protect from corrosion and galling; Teflon® or Grafoil® packing optional * All stem threads are 316 stainless steel * All stem threads are rolled for strength and ease of operation * One-piece bonnet with a metal-to-metal seal to the valve body below the bonnet threads * Bonnet lock pin to prevent accidental loosening * Vinyl bonnet and stem dust cap * 0.187 inch orifice size * Optional panel mount bonnet and panel nuts