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800/850 Series Bleed Valves - Hard Seat & Soft Tip
- These valves provide a convenient means to relieve process pressures trapped between a shut off valve and the instrument
- Use the same bonnet assemblies of the 100/150 Series Mini Valves with an integrated single threaded body for insertion in vent port
- 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)
- Available in Zinc-nickel plated steel, electropolished stainless steel, and brass
- 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
- 0.159 bleed hole
- Patent-pending body-to-bonnet, metal-to-metal seal is designed to significantly increase the pressure range of the valve without compromising the flow, and help maintain the integrity of the bonnet threads by segregating them from the process media
- Grafoil® is a registered trademark of Graftech International
- Viton®, Delrin® and Kalrez® are registered trademarks of DuPont Performance Elastomers
- Teflon® is a registered trademark of DuPont Plastic
- Parco® is a registered trademark of Parco, Inc.
- Simriz® is a registered trademark of Simrit, A Division Of Freudenberk-NOK
- Parker® is a registered trademark of Parker O-Ring Division
- Ketron® is a registered trademark of Quadrant Engineering Plastics
- KEL-F® brand is a registered trademark of 3M. Production of this brand was discontinued in 1995. The only remaining brand, Neoflon®, is made by Daikin Industries of Japan. This PCTFE resin has the same chemical structure and properties as the original KEL-F® brand material
Click on chart below to enlarge
Click on chart below to enlarge
To meet all of your specific application requirements, the following additional options are available for these needle valves. To order all or any of these options, simply add them to the part number as shown in the diagram below.
NOTE 1: The example shown includes ALL possible additional options. Please include ONLY the options required for your application when building your part number. (EXAMPLE:802-MC-EM1)
NOTE 2: When a packing option is selected, an o-ring option is NOT available.
Click on chart below to enlarge
Click on chart below to enlarge
Please note that the standard o-ring in all the NOSHOK Valves is Viton® and the standard handles are: 1" Round Knurled (HL3) on Brass • 3/8" Mini "T" (HL7) on Stainless Steel and Steel
The handle material will always match the material of the valve, unless otherwise specified. For example, the Mini "T" handle (HL7) on the 804-MC will be steel. When only the standard configuration is needed, no additional designations are necessary. Please consult the factory for special application requests.