Needle & Manifold Valves


Home | Needle Valves | 600 Series Block & Bleed, Hard Seat


600 Series Block & Bleed, Hard Seat Needle Valves


  • Block & bleed design allows 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
  • 10,000 psi pressure rating @ 200 °F
  • Blow-out proof stem provides a secondary stem seal in the full open
  • FKM o-ring seal and PTFE back-up ring below the stem threads to
    protect from corrosion and galling; PTFE or Grafoil® packing optional
  • All stems 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
  • Slotted spring pin to prevent accidental loosening
  • Vinyl dust cap for bonnet and stem (non-packing)
  • 0.090" bleed hole located on the bottom is controlled by a
    1/4"-20 UNF-2A bleed screw

Dimensions Options Print Catalog Page



SERIES 6 600 Series, hard seat    
VALVE TYPES MFC Male-Female, Steel MFS Male-Female, Stainless Steel
  FFC Female-Female, Steel FFS Female-Female, Stainless Steel

    Please consult your local NOSHOK Distributor or NOSHOK, Inc. for availability and delivery information.

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: 602-FFC-P2)
NOTE 2: When a packing option is selected, an o-ring option is NOT available.


PACKINGS P1 PTFE P2 Grafoil®    
STEM TIPS T1 Non-rotating (316 stainless) T6 Ball (carbide) T8 Ball (Monel)
  T5 Ball (440C stainless) T7 Ball (ceramic) T9 Regulating hard
O-RINGS* EM1 EPDM KZ1 FFKM (Kalrez® 3018 or equivalent) NB1 NBR
PANEL MOUNTINGS PM1 Panel mount (1 nut) PM2 Panel mount (2 nuts)    
HANDLES HL4 1-3/8" Phenolic HL5 1-3/4" Phenolic    

    Please consult your local NOSHOK Distributor or NOSHOK, Inc. for availability and delivery information.

† If a packing option is chosen, maximum pressure rating is 6,000 psi. Refer to the "Pressure vs Temperature: Packing Style with Compatible Fluid" chart.

* Other o-ring materials available on request.

Please note that the standard o-ring in all the NOSHOK valves is FKM 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 602-FFC will be steel. When only the standard configuration is needed, no additional designations are necessary. Please consult the factory for special application requests.

NOSHOK, INC. 1010 W. Bagley Road | Berea, OH 44017 | Ph 440.243.0888 | Fax 440.243.3472 | Webmaster | Site Map