Gate Valve Flanged Ends 150 Class 50mm

Design Features
• Full Port Design
• Os & y Out Side Screw and Yoke
• Bb. Bolted Bonnet
• Flexible Wedge, Fully Guided
• Choice Of Solid Or Split Wedge
• Renewable Seat Rings
• T-head Stem
• Rising Stem And hon-rising Hand Wheel
• Flanged Or Butt Welding Ends
• Available With Bg Operator

Specifications
• Steel Gate Valves API 600/API6D
• Steel Gate Valves ISO I0434gSO 143 I3
• Steel Vdves ASME BI 6.34
• Face To Face ASME BI 6. I 0/API 6D
• End Flanges ASME BI 6.5
• Butt Welding Ends ASME BI 6.25
• Inspection And Test API 598/API 6D

Design
NU-TECH cast steel gate valves are designed and manufactured to provide maximum service life and dependability. All gate valves are full ported and meet the design requirements of Amencan Petroleum Institute standard API600 & API 6D. British sBndard BSI4I 4 BS EN 1984 and generally, Conform to American Society of Mechanical Engineers standard ASME BI 6.34 valves are available in a complete
range of body/bonnet materials and trims.

Standard body/bonnet materials include nine grades of carbon, low allowy & stainless steels. For special :.application they can be supplied in other grades of alloy & stainless steel. There's a full range of trim materials to match any service optional packing & gasket materials are available for a full range of service Conditions.

Operation : Large hand wheels for .Casy operation. Also available Cth gearing motor actuators, pneumatic or hydraulic actuators for more difficult services.

Live Load Packing : In services requiring frequent cycling or with high pressure temperature variations,.Iive loading extends the service life between maintenance periods by requiring less instruments. Believille springs are employed to provide constant packing gland stress

Wedge : Integral guide rib faces assure self-centering.of wedge. flexible wedge gate valve has a one piece. twin-disc wedge, which is designed so that each half flexes independently. Available in solid flex split and his designs.

OS & Y : Outside screw and yoke. Cast steel gate valve yoke integral with bonnet for 150 Lbs-8" 600 Lbs-6!' 900 Lbs-4' & small.

BB : Bolted bonnet, Welding bonnet and pressure seal bonnet in services requiring frequent cycling or with high pressure/tempareture variations.

End Connections : A choice of flanged, RTj flanged or butt welding end for piping flexibility.

Lantern Ring & Double Pacing Set : Lantern ring leak-off fitting connection & double packing stack is optionally available for critical services.

Yoke Sleeve : Extra long thread engagement between yoke sleeve and stem provide Iong thread life. Valves of sizes larger than 1 50 Lb- 12”, 300 Lb- 10', 600 Lb-6", 900 Lb /1500 Lb / 4" are regularly provided with roll bearing yokes.

Stem : All wedge gate valves are provided with upset forged T-head stems by forging the T-head. The stern at the stem-wedge connection is strengthened. This design also allows the wedge possiblility of a bent stem jamming the wedge.

Body to Bonnet joint : A flat face gasket joint is used in the I 50Ib vales. A male and female joint is used in 300Lb to 600Lb valves. Ring joint is 900Lb & higher rated valves.