Pneumatic Butterfly Valve Type TOSV

Transcription

1 Pneumatic Butterfly Valve Type TOSV Application Triple eccentric, tight closing high-pressure butterfly valve for process engineering and plants with industrial requirements 3 to 84 Nominal pressure ANSI Class 150 to 1500 (2500) Temperatures 10 to +450 o C Triple eccentric Type TOSV Butterfly Valve featuring zero leakage in both directions of medium flow at maximum differential pressure. Valve body material Carbon steel A 216 WCB Stainless steel A 351 CF8M Body style Wafer Lug-type (threaded holes) Double flanged Welding ends Seal Laminated 316 SS/graphite The valves can be equipped with positioners, solenoid valves or other components in accordance with VDI/VDE Versions Standard version Type TOSV Wafer-lug design according to API 609, tight shutoff according to API 598 and API 6D. Fig. 1 Type TOSV Butterfly Valve for cryogenic applications with pneumatic actuator Other versions Wafer-type body according to API 609 Double flanged body according to BS 5155/ISO 5752 Length according to ANSI B16.10 Fire-safe version according to BS 6755 Part 2, API 607 and API 6FA Version for cryogenic applications up to 196 C Version for high temperatures up to +700 C Body materials: duplex steel, 6 molybdenum steel, bronze, monel, incoloy, hastelloy B and C, titanium, zirconium Nominal pressure ANSI Class 2500 Fig. 2 Type TOSV Butterfly Valve with manual actuator Edition April 2000 Data Sheet

2 Principle of operation The process medium can flow through the butterfly valve in either direction. The flow coefficient is determined by the vane s opening angle, i.e. the free area between the vane and the body. Tight shutoff is facilitated by means of the laminated metal/graphite packing which is inserted in the vane and the metallic seat ring. The sealing ring flexibly adapts to the seat design. The triple eccentric design minimizes friction. Fail-safe position The pneumatic rotary actuators are available with two fail-safe positions which become effective either when there is a pressure drop across the actuator or when the air supply fails. "Valve CLOSED without supply air" The butterfly valve is closed when the air supply fails. "Valve OPEN without supply air" The butterfly valve is opened when the air supply fails. Fig. 3 Type TOSV vane design Table 1 Technical data 3 to 84 Nominal pressure ANSI Class 150 to 1500 Body style Lug-type Wafer-type Double flanged Length API 609 (Lug-type) ANSI B16.10 (double flanged version) Installation between flanges ANSI Class 150 to 1500 Seat ring Laminated metal/graphite Characteristic Max. opening angle Rangeability > 50 : 1 Perm. operating pressures See Pressure-Temperature Diagram Temperature range 10 to 450 C Leakage class according to API 598 Bubble tight 2

3 Table 2 Materials Version Carbon steel Stainless steel Body A 216 WCB A 351 CF8M Vane A 216 WCB A 351 CF8M Shaft A564 Gr. 630 H1100 A564 Gr. 630 Thrust collar 316 SS chromized Seat ring 316 SS Seat seal 316 SS/Supagraph 316 SS/graphite Bonnet and retaining ring 316 SS Gland flange 316 SS Bearings (2 pcs) 316 SS chromized Seat ring and bonnet seal Laminated Supagraph Packing P6 passivated Supagraph Packing Supagraph Grafpack Table 3 C v values and corresponding opening angles Opening angle in mm On request On request On request Terms for valve sizing and noise level calculation Table 4a Terms for valve sizing Opening angle FL xt Table 4b z values in/mm to to 2200 z

4 Table 5a Dimensions in mm and weights for Type TOSV Double flanged version ANSI Class Table 5b Dimensions in mm and weights for Type TOSV Lug type ANSI Class

5 Table 5c Dimensions in mm and weights for Type TOSV Double flanged version ANSI Class Table 5d Dimensions in mm and weights for Type TOSV Lug type ANSI Class

6 Table 5e Dimensions in mm and weights for Type TOSV Double flanged version ANSI Class Table 5f Dimensions in mm and weights for Type TOSV Lug type ANSI Class

7 Table 5g Dimensions in mm and weights for Type TOSV Lug type ANSI Class Table 5h Dimensions in mm and weights for Type TOSV Lug type ANSI Class Table 5i Dimensions in mm and weights for Type TOSV Lug type ANSI Class Fig. 4 Dimensional drawing for Type TOSV 7

8 Ordering text Type TOSV Butterfly Valve... Nominal pressure Class... Body material According to Table 2 Actuator Type... Fail-safe position Valve CLOSED or valve OPEN Control valve accessories Specifications subject to change without notice. SAMSON AG MESS- UND REGELTECHNIK Weismüllerstraße 3 D Frankfurt am Main Telefon (0 69) Telefax (0 69) Internet: