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Developed for high pressure, side-loading applications, the 316 stainless steel trunnion is supported and held securely in position by two composite bearings. Encapsulated Nylatron® seats provide a positive seal, resulting in leak-tight sealing between all ports to 6000 psig differential, reducing operating torque and increasing cycle life. The handle points to the side port in use; when perpendicular to the side ports, it indicates the shutoff position.
Unit of Measure

Specifications

Series

 N/A 7931

Type

 N/A Ball Valve

Body Style

 N/A 5-Way

Body Material

 N/A 316 Stainless Steel

Seat Material

 N/A TFE

Seat Washer Material

 N/A Viton®

Inlet

 N/A 1/4" Gyrolok®

Outlet

 N/A 1/4" Gyrolok®

Max. Operating Pressure

 N/A 2000 psig138 bar

Temperature Range

 N/A 0 to 350 ºF-18 to 177 ºC

Orifice Size

 N/A 4.7 mm0.187 in

Flow Coefficient (Cv)

 N/A 0.51

Typical Applications

N/A

  • Sampling systems
  • Distribution systems
  • Instrument range selection

Features & Benefits

N/A

  • Blowout-proof stem for added safety
  • Spring-loaded detent engages every 90º to indicate full port position, increasing operator confidence.
  • Trunnion bearings eliminate galling, increasing valve life and reducing cost of ownership.
  • A wide variety of HOKE Gyrolok® end fittings or pipe fittings provide the correct fitting option for the application.

Materials of Construction

N/A


  Description 2000 PSIG Models 6000 PSIG Models
1 Body 316 stainless steel 316 stainless steel
2 Trunnion 316 stainless steel 316 stainless steel
3 Stem 316 stainless steel 316 stainless steel
4 Stem packing† Viton® Viton®
5 Stem bushing 316 stainless steel 316 stainless steel
6 Seats TFE Nylatron®
7 Seat retainers 316 stainless steel 316 stainless steel
8 Seat washers† Viton® Viton®
9 Thrust washer Rulon® Nylatron®
10 Friction & wave washers Nylon & 302 stainless steel Nylon & 302 stainless steel
11 Spring & ball detent 302 stainless steel & 440 CSS 302 stainless steel & 440 CSS
12 Bearings TFE Nylon/TFE
(fiberglass filament wound
backing)
13 Handle Nylon Nylon
† Other elastomers are available upon request. Contact your local distributor.



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H200 Series High Pressure Check Valves 0 to 6000 psig
2200 Series Check Valves 0 to 800 psig
2300 Series Check Valves 0 to 10000 psig
C200 Series Cartridge Check Valve 0 to 5000 psig
C2900 Series Cartridge Check Valve 0 to 3000 psig
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100 Series Check Valves 0 to 25 psigs
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500 Series Relief Valves 0.5 to 150 psig
HP500 Series Relief Valves 150 to 575 psig
5100 Series Relief Valves 10 to 2400 psig
D500 Series ASME Safety Relief Valves 15 to 150 psig
M5100 Series ASME Relief Valves 20 to 1200 psig
5300 Series Relief Valves 400 to 10500 psig
R6000 Series Right Angle Relief Valves 5 to 6000 psig
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307 Derstine Ave, Suite 204 | Lansdale, PA 19446 | Phone: 267-933-6300 | Fax: 267-933-6305 | Toll Free: 800-645-6733 | Email: [email protected]
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