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All Categories > Hoke® Valves > Ball Valves > Selectomite® 76 Series 3-Way Trunnion Ball Valves > Item # 7644F4Y  
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Item # 7644F4Y, Selectomite® 76 Series 3-Way Trunnion Ball Valves

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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: Imperial Metric Both

Specifications  · Typical Applications  · Features & Benefits  · Materials of Construction

Specifications

Series

7644

Type

Ball Valve

Body Style

3-Way

Body Material

316 Stainless Steel

Seat Material

Nylatron®

Seat Washer Material

Viton®

Inlet

1/4" Female NPT

Outlet

1/4" Female NPT

Max. Operating Pressure

6000 psig
414
bar

Operating Temperature

0 to 250 ºF
-18 to 121
ºC

Orifice Size

0.187 in
4.7
mm

Flow Coefficient (Cv)

0.56

Panel Hole Dia.

57/64 in
22.6
mm

Max. Panel Thickness

3/16 in
4.8
mm


Typical Applications
  • Compressed natural gas dispensing
  • Instrument air lines
  • Sampling systems
  • 2-way gauge readout of line pressure
  • Down hole control systems on offshore drilling platforms



Features & Benefits
  • Blowout-proof stem for added safety
  • Trunnion design assures leak-tight sealing at full 6000 psig (414 bar) differential pressure for high pressure applications.
  • Handle points to port in use or to closed position, providing a visual cue and improved safety.
  • Encapsulated dual Nylatron® seats and Viton® stem seals ensure a leak tight seal. This combination provides greater valve reliability.



Materials of Construction



  Description Material
1 Body 316 stainless steel
2 Trunnion 316 stainless steel
3 Stem 316 stainless steel
4 Stem packing† Viton®
5 Seats
7644 Series
7654 Series
 
Nylatron®
TFE
6 Seat retainers 316 stainless steel
7 Seat washers† Viton®
8 Thrust washer Nylatron®
9 Spacer 316 stainless steel
10 Belleville washers 316 stainless steel
11 Bearings Nylon/TFE
12 Backup ring TFE
13 End fitting gaskets TFE
14 Handle Nylon
15 Panel mounting nut 316 stainless steel
† Other elastomers are available upon request. Contact your local distributor.



Trunnion Design
While the floating ball is superior in 2-way and many 3-way designs, the trunnion is the preferred choice in 4- and 5-way valves and higher pressure 3-way valves because of the fluid dynamics. The design of the trunnion allows it to be secured in position with composite bearings, assuring a very precise relationship between the trunnion and seats. As a result, trunnion 3-, 4- and 5-way valves have few limitations on pressure ratings.



 MORE IMAGES 

·  Hoke Ball Valve Selectomite 76 Series Dim. Drawing


 DOWNLOADS 

Pressure vs Temperature Curve
(GIF, 15KB)

Flow Diagrams
(GIF, 6KB)

Hoke 76 Series Catalog
(PDF, 170KB)

Hoke Ball Valve 76 Series Drawing
(GIF, 58KB)

Technical Data
(JPG, 57KB)


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