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700 Series Block & Bleed Soft Seat Needle Valves
- These valves allow pressure to be bled off without disturbing the permanent piping installation, allowing quick and easy removal or replacement of instruments
- 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
- 6,000 psi pressure rating (@ 200°F maximum)
- Replaceable Delrin® seat and straight through porting for bi-directional, high capacity flow and easy roddable cleaning
- PCTFE or PEEK soft seat optional
- 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
- 0.090 bleed hole located on the bottom is controlled by a 1/4-20 UNF-2B bleed screw
- 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: 702-FFC-HL5)
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: "T" handles (HL2)
The handle material will always match the material of the valve, unless otherwise specified. For example, the "T" handle (HL2) on the 704-MFC will be steel. When only the standard configuration is needed, no additional designations are necessary. Please consult the factory for special application requests.