1 Operating
Large hand wheels for easyoperation. Also available withgearing, motor actuators,pneumatic or hydraulicactuators for more difficultservices.

2 Live Load Packing
In services requiring frequentcycling or with high pressure/temperature variations, liveloading extends the servicelife between maintenanceperiods by requiring lessfrequent packing gland adju-stments. Belleville springs areemployed to provide constantpacking gland stress.

3 OS &Y
Outside Screw and Yoke.Cast steel gate valve yoke.Integral with bonnet for150ILb-8”,300Lb-8”,600Lb-6”, 900Lb-4”&Small.

4 BB
Bolted bonnet. Weldingbonnet and pressure sealbonnet in services requiringfrequent cycling or withhigh pressure/ temperaturevariations.

5 End Connections
A choice of Flanged, RTJflanged or Butt welding endfor piping flexibility

6 Yoke Sleeve
Extra long threadengagement between yokesleeve and stem providelong thread life. Valves ofsizes larger than 150Lb-12″,300Lb-10″,600Lb-6″,900Lb/1500Lb/2500Lb-4″are regularly provided withroll bearing yokes.

7 Lantern Ring andDouble Packing set
Lantern ring with leak-off fittingconnection and double packingstack is optionally available forcritical services.

8 Body-to-Bonnet Joint
A flat face gasket joint isused in the 150Lb valves.A male and female joint isused in 300Lb to 600Lbvalves. Ring joint is used inthe body to bonnetconnection in 900Lb&higher rated valves.

9 Stem
All wedge gate valves are providedwith upset forged T-headstems. By forging the T-head,the stem at the stem-wedgeconnection is stregthended. Thisdesign also allows the wedgeto self-align, eliminating thepossibility of a bent stem jammingthe wedge.

10 Wedge
Integral guide rib faces assureself-centering of wedge. Flexiblewedge gate valve has a one-piece, twin-disc wedge, which isdesigned so that each half flexesindependently. Available insolid, flex split and HIS designs.