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1 high performance

2 EXECUTION OFFSET FROM CENTRE OF VALVE OFFSET FROM CENTRE OF SEAT VALVE CENTRE LINE SHAFT CENTRE LINE Valve body is solid, heavy duty. Seat Retainer construction allows Gasket conforming to API 609. Optimal disc geometry and cavity free flow passage offers minimum flow resistance and high Cv values. Heavy duty pins connecting valve shaft to disc avoid lost motion under high torque conditions. Long life, easy field replaceable seat placed in body, away from flow stream, provides bubble tight shut off. Valves are equally suitable for control and tight shut off applications. Low friction bearings provide maximum radial support for higher shaft loads. The PTFE lined bearings having low coefficient of friction minimizes operating torque and reduces actuator size. They are slip in-place type, easy for assembly and disassembly. Seat options includes PTFE, EPDM, Viton Soft Seats and flexible MetalSeats to suit a variety of fluids and applications. Recommended for critical applications including high temperature services, throttling steam control, liquid services, gas applications, vacuum applications, corrosive fluids, refinery services, chemical services, hydrocarbon services, etc. SPECIFICATIONS CONSTRUCTION WAFER-LUG-DOUBLE FLANGED VALVE SIZES 2-1 / DN 50 - DN 0 RATINGS CLASS CLASS - CLASS (EQUIVALENT TO DIN) DESIGN STANDARD API ANSI B ANSI B 16.5 TESTING STANDARD API FCI 70.2 SEAT LEAKAGE OPTION CLASS VI FOR PTFE - EPDM-FKM SOFT SEATS - CLASS IV FOR FLEXIBLE METAL SEATS FLOW DIRECTIONAL BI DIRECTIONAL CONFORMITY TO CODES DESIGN & MANUFACTURING API 609 CATEGORY B - BS API 607 (FIRE SAFE) FACE TO FACE DIMENSIONS API BS BS EN ISO 5752 FLANGE DIMENSIONS ANSI B 16.5 (TILL DN / 2 ) - ANSI B 16.7 (> DN / 2 ) PRESSURE TEMPERATURE RATING ANSI B 16.3 VALVE INSPECTION API FCI

3 SEAT DESIGN OPTIONS Most suitable for high consistency fluids having suspended hard particles, for erosive services, for high temperature services > to 550 C. Die pressed stainless steel seats with inbuilt flexible property gives Class IV leakage with minimal torque requirements FLEXIBLE METAL Flow from Seat Retainer Side The lip shaped PTFE Seat moves axially in the direction of flow with the assistance of line pressure. The tightness between seat and disc increases with increased in-line pressure. In case of fire, soft seat material disappear and tightness is ensured by the metallic back-up lip. FIRE SAFE DESIGN Flow from Shaft Side With the line pressure acting on the disc, it tries to move towards the seat which is supported by Seat Retainer. Seat does not move giving simple leak tight seal.

4 MATERIAL N PART NAME 1 VALVE BODY 2 END COVER 3 DISC VALVE SHAFT 5 DISC 6 SEAT RING 7 SEAT RETAINER SCREW 8 BODY GASKET 9 SEAT RETAINER GUIDE BUSH 11 GLAND PACKING 12 GLAND BUSH 13 GLAND STUDS 1 GLAND FLANGE 15 END COVER BOLTS 5

5 GLAND PACKING OPTIONS BELVEN offers Single and Double set of V-shaped Teflon rings (cup & cone) up to C and Graphite moulded rings for applications to C. Inverted V- shaped Teflon rings are used for vacuum applications where the upperset of rings are positioned in reversed direction. fered for vacuum application with upper set of teflon VRings positioned in reverse direction. Low fugitive Emission packings are provided on request SINGLE eflon V-TEFLON Gland GLAND Packing PACKING 7 N PART NAME 1 GLAND STUD 2 NUT 3 GLAND FLANGE GLAND BUSH 5 VALVE SHAFT 6 V-RING TEFLON GLAND PACKING 7 V-RING TEFLON GLAND PACKING INVERTED V-TEFLON GLAND PACKING and Packing FOR VACUUM cationapplication 7 6

6 CV VALUES (usgpm) VALVE SIZE ANSI 150 # ANSI # INCH MM Flow gpm (gallons per minute) Cv = Kv x 1,16 Pressure drop p = 1 psi Kv = Cv x 0,86 formulas Liquid flow Q = Kv x ( p/ ) Q flow (m³/h) Pressure drop p = x (Q²/Kv²) p pressure drop (1 bar) Minimum coefficient of flow Kv = Q x ( / p) density (kg/dm³), water = 1 11

7 PRESSURE-TEMPERATURE RATINGS CLASS TEMPERATURE, C A351 Gr. CF8M, CAST STAINLESS STEEL A216 Gr. WCB, CAST CARBON STEEL EPDM PTFE MAXIMUM DIFFERENTIAL PRESSURE, PSI LOW TEMPERATURE RATING TEMPERATURE, F 0 30 MAXIMUM DIFFERENTIAL PRESSURE, BAR VITON SATURATED STEAM CLASS CLASS TEMPERATURE, C MAXIMUM DIFFERENTIAL PRESSURE, PSI LOW TEMPERATURE RATING TEMPERATURE, F 0 30 MAXIMUM DIFFERENTIAL PRESSURE, BAR 12

8 CLASS DISC OPENING ANGLE, DEGREES / CLASS DISC OPENING ANGLE, DEGREES high performance FLOW CHARACTERISTIC CURVES FLOW COEFFICIENT Cv, USGPM FLO WCOE FFI CIE NT C v, USG PM VA LV ESI Z E, MM VAL VESIZ E, INCH FLOW COEFFICIENT Cv, USGPM FLO WCOE FFI CIE NT C v, US PG M VA LV ESI Z E, M M VA LVE S IZE, INC H /

9 DIMENSIONS - WAFER (BV-HP) C A C A F B ØE 2 (DN 50) - 6 (DN 150) F B ØE Nos., Y'-Dia ON 'Z' P.C.D. Nos., Y'-Tapping ON 'Z' P.C.D. 8 (DN ) - 36 (DN 900) VALVE SIZE 150# # INCH MM A B C ØE F øy HOLE Y tapping Z A B C ØE F Y Z / / / / / / / / / / /

10 FIELD APPLICATIONS BELVEN High Performance Butterfly Valves are available in Wafer and Lug type designs conforming to API 609 standard. Well supported shaft with heavy duty bearings ensure perfect alignment of seat and disc for smooth and trouble free operations. Valves have been rigorously tested to ensure industry performance requirements. The Disc construction is Double Offset providing excellent controllability, bubble tight shut off, greater seat life and smooth operation. Valves are specially designed for applications in Chemical, Petroleum, Hydro Carbons Processing, Pulp & Paper and HVAC industries. CHEMICAL INDUSTRY PETROLEUM INDUSTRY HYDRO CARBONS PROCESSING PULP & PAPER INDUSTRY HVAC INDUSTRY HOW TO MAKE THE BELVEN PRODUCT CODE? BV TYPE - MATERIAL BODY MATERIAL INSIDE MATERIAL SEAT BV TYPE BV-HP > High Performance Wafer double offset butterfly valve BV12-HP > High Performance Lug double offset butterfly valve BV13-HP > High performance double flanged double offset butterfly valve - MATERIAL BODY > A216 WCB > Cast Steel 7 > Low Carbon Steel 63 > CF8 > Stainless Steel 66 > CF8M > Stainless Steel MATERIAL INSIDE 63 > CF8 > Stainless steel 66 > CF8M > Stainless steel 69 > CF8M polished > Stainless steel 88 > Duplex MATERIAL SEAT E > EPDM B > NBR - BUNA V > FKM/FPM - VITON T > PTFE - TEFLON F > FIRE SAFE, PTFE + SS316 M > Metal seated For more information about the BELVEN high performance series or other BELVEN products, kindly contact our sales team at BELVEN headquarters. Industriepark Mechelen Noord 1 Blokhuisstraat 2 l 2800 Mechelen l Belgium tel. +32 (0) fax +32 (0) info@belven.com 18

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