TAPER PlUG VAlVES

More documents

Recommendations

Info

<strong>TAPER</strong> PLUG VALVES Operation The simplest method of operation the valve is by using a wrench directly on top of the valve plug. Straight-way valves open and close by rotating through goo while three-way and four-way valves have rotary motions through goo - 180° - 2700 - 360°. The wrench can be fitted on the square of the valve plug in eight different positions. This is a big advantage in places with limited space. The wrench is available in a short and a long version as type 8K and type BL. Wrench operation is used on relatively small valve sizes, as indicated on the dimension sheets. Gear, type C, is enclosed in a water-proof casing, with the handwheel located vertically on side of the valve. Worm and worm wheel are embedded in heavy bronze bearings, and the axial load stress is absorbed by ball bearings. Both bearings and tooth racks are lubricated with concentrated molybdenum grease to resist high temperatures. (See lubrication of gear, page A6. The gear has fixed stops at extreme position, plus position indicator. Gear, type C, is available in all pressure classes and valve sizes. Type C can be fitted with electric, pneumatic or hydraulic actuator. Gear, type D, is enclosed in a water-proof casing, with the handwheel located horizontally on top of the valve. Worm and worm wheel are embedded in heavy bronze bearings, and the axial load stress is absorbed by ball bearings. Both bearings and tooth racks are lubricated with concentrated molybdenum grease to resist high temperatures. (See lubrication of gear;- page A6. The gear has fixed stops at extreme positions, plus position indicator. Gear, type D, is available in all pressure classes. (For valve sizessee dimension sheets). Gear, type D, can be fitted with electric, pneumatic or hydraulic actuator. A4 July 99.
~ ~ <strong>TAPER</strong> PLUG VALVES Connection Screwed Ends: Designed in accordance with API Line Pipe threads (Taper) API Std. 58 Table 2.1 or ANSI Std. 81.20.1. Available in size 1 /2" to 4". Flanges: Designed in accordance with the ANSI 816.5 standard, as indicated on the dimension sheets. Unless otherwise specified, all flanges are supplied with Raised Face. Butt Welding Ends: For direct welding in the pipeline. Designed in accordance with ANSI B 16.25. Socket-Welding Ends: For direct welding in the pipeline. Designed in accordance with ANSI B 16.11. Dimension, page F11. July 99. A5
Page 2 and 3: ~ ~ TAPER PLUG VALVES - Wrench Oper
Page 4 and 5: TAPER PLUG VALVES Figure numbering
Page 6 and 7: TAPER PLUG VALVES Valve Identificat
Page 8 and 9: STRAIGHTWAY TAPER TWIN PLUG VALVES
Page 10 and 11: TAPER PLUG VALVES Valve Constructio
Page 14 and 15: • ~ TAPER PlUG VAlVES The valve i
Page 16 and 17: • TAPER t PLUG VALVES Materials o
Page 18 and 19: ~ ~ TAPER PLUG VALVES Dimension of
Page 20 and 21: STRAIGHTWAY TAPER PlUG VALVES CAST
Page 22 and 23: STRAIGHTWAY TAPER PLUG VALVES CAST
Page 50 and 51: TAPER PLUG VALVES Inch to millimete
Page 52 and 53: TAPER PLUG VALVES Decimal equivalen
Page 54 and 55: TAPER PLUG VALVES Pressure conversi
Page 56 and 57: TAPER PLUG VALVES British standard
Page 58 and 59: TAPER PLUG VALVES British standard
Page 60: TAPER PlUG VAlVES Sockets Welding E

TAPER PlUG VAlVES

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?