butterfly valves high performance TRIPLE OFFSET HP-TRI REV0

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1 high performance

2 EXECUTION 1st OFFSET 2nd OFFSET 3rd OFFSET The BELVEN-TRI series incorporate triple offset disc configuration. With this configuration the disc seal makes contact with body seat, only at the final shutoff position without rubbing or galling with each other. Tight shut off is achieved with the torque on the shaft. FIRST OFFSET SECOND OFFSET THIRD OFFSET The shaft is in offset with seat axis. This offset provides complete seating contact around the entire seat. With this design the disc & seat remain in interference with each other for a larger rotation of valve disc, hence does not allow use of metal seats. The shaft centre is offset with the valve & pipe line. This offset creates a cam effect to the movement of disc while opening & closing of valve between disc seal & seat ring. The friction between seat & seal reduces to a great extent. This allows use metal seats & make double offset to a wider range of applications. However the metal seats need to be highly flexible to avoid jamming. The third offset is the axis of the seat. One angle is made inclined to the centre line of valve bore. The seat cone is offset to shaft centerline. This offset ensures last position contact between disc seal & seat ring during closing & opening. The friction between seat & seal reduces to Zero. The triple offset mechanism is ideally suited for metal to metal seated valves providing bubble Tight shut off performance under high temperature& fire safe applications. SPECIFICATIONS CONSTRUCTION WAFER-LUG-DOUBLE FLANGED VALVE SIZES 3-48 / DN 80 - DN 1200 PRESSURE RATINGS CLASS CLASS CLASS 600 / EQUIVALENT TO DIN DESIGN CONFORMS TO API 609 / BS 5155 / EN593 REQUIREMENTS WORKING TEMPERATURE -29 C to +538 C WITH SUITABLE COMBINATION MATERIAL -100 C to +700 C CONFORMITY TO CODES DESIGN & MANUFACTURING API CALCULATIONS ACCORDING TO ASME SEC VIII, EN ASME SEC III, ANSI B16.34 FACE TO FACE DIMENSIONS API EN SERIES 13 & 20 FLANGE DIMENSIONS BODY FLANGE ANSI B ANSI 150# - ANSI 300#; DRILLING PN TESTING STANDARD API ANSI / FCI 70.2 Cl. VI LEAKAGE MARKING AMSS-SP-25 / EN 99 2

3 EXECUTION THE LAMINATED SEAL The torque transmitted by the shaft to the disc generates uniform seating forces on the entire circumference of the disc seal. The laminated seal flexes & gets energized in the direction of sealing all over its entire circumference.the resiliency of the disc seal allows valve body and disc to expand or contract without producing any jamming effect under a fluctuating temperature range. The torque generated radial compressive force equally distributed around the circumference provides bidirectional tight shutoff. DISC GASKET BODY GASKET VALVE FEATURES Torque generated metal to metal sealing provide bidirectional tight shutoff as per requirement ofapi 598,API 6D & FCI 70.2 ( class VI ) Triple offset geometry completely eliminates seat to seal rubbing action through out 90º disc rotation. The disc seal makes contact with the body seat only at the final shut off position. Stellite hard facing on disc seal can be provided for abrasive services. Complete metal construction including seal & seat with tight shut performance enable the design to be inherently fire safe. Double blow out proof stem retention ensures greater safety and complies to the requirements of API 609. Large diameter one piece shaft construction provides better disc alignment & smooth disc rotation between 0-90 º. The shaft is connected to the disc through a key & pin to absorb differential expansion due to temperature differential. The shaft is guided with two long bearings which are hard chrome plated or stellited depending on applications. Bearing protection seals are provided optionally for gas applications containing suspended particles. Low emission gland packing: Shaft & stuffing box finished with excellent finish & live loaded packing provides low emission shaft sealing. Stainless steel metal rings with in between graphite layers are carefully assembled. The laminated resilient metal seals are suitable for temperatures up to 1000 ºF (538 ºC). Seal is mounted on the body always away from the corrosive effects of the flowing media. Both seat &seal are field replaceable with our special tools. Mistake proof bolting system of seat & seal to facilitate the mounting of seat & seal in one & correct position only. Wide gaskets for seat & seal to eliminate leakage past the face of seat or seal under high temperature conditions. In built mechanism of disc prevents decentralization of disc under high temperature & pressure conditions. Rigid disc construction minimizes disc deflection. Positive external valve position indication. Materials conforming tonaceavailable on request. Heavy duty operator mounting bracket with ISO mounting facility for variety of actuator models. 3

4 MATERIAL GRAPHITE HIGH DENSITY GRAPHITE LOW DENSITY G LAN D PACK I N G V Teflon G LAN D PACK I N G N PART NAME BODY IN CARBON STEEL BODY IN STAINLESS STEEL BODY IN SUPER DUPLEX BODY IN ALLUM BORON2 BV..-TRI-4466M BV..-TRI-6666M BV..-TRI-8888M BV..-TRI-1313M 1 BODY ASTM A216 WCB ASTM A351CF8M ASTM A590 GR. 6A AL. BRONZE BS 1400 AB2 2 DISC SEAL SS316 + GRAPHITE SS316 + GRAPHITE SUPER DUPLEX UNS S GRAPHITE (laminated) MONEL GRAPHITE (laminated) 3 DISC ASTM A351CF8M ASTM A351CF8M AS7M A S 90 GR. 6A AL. BRONZE BS1400AB2 4 SEAL RETAINER CARBON STEEL ASTM A351CF8M SUPER DUPLEX UNS S32760 AL. BRONZE BS1400AB2 5 BODY SEAT SS316 + (1) SS316 + GRAPHITE SUPER DUPLEX UNS S32760 AL. BRONZE BS1400AB2 6 BOLT ASTM A193 (7) ASTM A193 B8M ASTM A. 193 GR. BSM ASTM A. 193 BSM 7 SEAT RING GASKET GRAPHITE GRAPHITE GRAPHITE GRAPHITE 8 SEAL GASKET GRAPHITE GRAPHITE GRAPHITE GRAPHITE 9 SHAFT SS316 / SS410 SS316 SUPER DUPLEX UNS S32760 MONEL K DISC KEY SS316 / SS410 SS316 SUPER DUPLEX UNS S32760 MONEL K PIN SS316 SS316 SUPER DUPLEX UNS S32760 MONEL K GLAND PACKING GRAPHITE (2) GRAPHITE GRAPHITE (2) GRAPHITE (2) 13 GLAND FLANGE CARBON STEEL SS316 SS 316 SS PACKING STUDS SS304 SS304 SS 304 SS GLAND BUSH SS316 SS316 SS 316 SS BOTTOM COVER CARBON STEEL SS316 SUPER DUPLEX UNS S32760 ALLUM BRON BS 1400 AB2 17 BOLTS ASTM A193B7 ASTM A193B8M A 193 GR. BSM A193 GR. BSM 18 GASKET SS SPIRAL WOUND/ GRAPHITE FILLED SS SPIRAL WOUND/ GRAPHITE FILLED SS SPIRAL WOUND/ GRAPHITE FILLED SS SPIRAL WOUND/ GRAPHITE FILLED 19 BEARINGS SS410 + H.T. SS316 + CHROME PLATED INCONEL 600 INCONEL THRUST WASHER SS316 SS316 SUPER DUPLEX UNS S (1) Stellite facing on disc seal on request (2) V-Teflon Gland packign for temperature less than 200 C 4

5 LOW EMISSION GLAND PACKING BELVEN provides a life loaded gland packing arrangement as a standard feature, for the TRI butterfly valve range. 1) Short packing chamber Gland Bush Grafoil Packing with spring washer loaded gland packing 2) Stem bearings are long enough to take side loads of stem so that its movement remains true concentric. This facilitates maximum effective shaft sealing. 3) Disc springs in the gland flange provide constant live loading on packing. Gland Packing 5

6 PRESSURE-TEMPERATURE RATINGS B TEMPERATURE C CLASS 150 CLASS 300 CLASS 600 TEMPERATURE F A216 GR WCB A216 GR WCB A216 GR WCB -29 to to Permissible but not recommended for prolonged usage above 800 F (426.6 C) (1) Flanged end rating terminates at 1000 F (537.8 C) TEMPERATURE C CLASS 150 CLASS 300 CLASS 600 TEMPERATURE F A216 GR WCB A216 GR WCB A216 GR WCB -29 to to (1) (1) (1) (1)

7 VALVE TORQUES (Nm) DELTA P (DP), BAR INCH VALVE SIZE DP = 5 DP = 10 DP = 15 DP = 20 DP = 30 DP = 40 DP = 51 MM The figures shown above are for actuator sizing & safety factor is already included. The valve can be used for preferred direction as well as reverse direction. CV VALUES (usgpm) BASIC FLOW CHARACTERISTIC CURVE curve VALVE SIZE 150# 300# INCH MM

8 OPERATING OPTIONS HAND LEVER Hand lever arrangement provides latching system in open, closed and eight intermediate positions. A pointer indicates the position of disc and an additional lock facility is provided to prevent unauthorized valve operation. Lever actuators are provided on size 2 (50mm) to 6 (150mm) only. For size 8 (200mm) and above, Gear Operators are recommended. GEAR OPERATOR Gear operators offer simple and reliable manual positioning of the valves. These actuators consist of worm gear arrangement housed in a robust cast iron housing. Sturdy design provides long life and maintenance free services. The high gear ratios enable the minimum input efforts for high torque conditions. Other operating options such as pneumatic, electric, hydraulic are also possible. Kindly contact our sales department for more information. PNEUMATIC ACTUATOR ELECTRIC ACTUATOR HYDRAULIC ACTUATOR 8

9 DIMENSIONS - LUG (BV12-TRI) Dembla ØD G B C F/F E VALVE SIZE A H Lug Valves- ANSI - 150# 'X' Nos.,'Y' Tap On 'Z' P.C.D. 150# 300# INCH MM A B C ØD E F/F G H X Y Z A B C ØD E F/F G H X Y Z / / / / / / / / / / /8 x /8 x /4 x /8 x /8 x /4 x /4 x /2 x /2 x /4 x /4 x /2 x

10 DIMENSIONS - DOUBLE FLANGED (BV13-TRI) ØD ØD Dembla G B B C F/F E A VALVE SIZE A Flanged Valves- ANSI - 150# 'X' øh 'X' Nos.,'Y' Dia On 'Y' 'Z' P.C.D. 'Z' 150# 300# DIMENSIONS AND WEIGHTS / Flange Valves- ASME Class 150 INCH MM A B C ØD E F/F G H X Y Z A B C ØD E F/F G H X Y Z A B C ØD E F/F G92 H250 X216 Y Z WEIGHT(Kg.) DIMENSIONS AND WEIGHTS / Flange Valves- ASME Class A B C 36 ØD 41.5 E F/F 735 G 1275 H 1325 X 950 Y Z WEIGHT(Kg.) A

11 FIELD APPLICATIONS Butterfly valves with single or double offset construction do not perform to the expectations when used for harsh & severe process applications, such as extreme temperature conditions, steam isolation, high operational frequency, abrasion services etc. Triple offset provide reliable & efficient performance under these harsh applications. BELVEN TRI-series Butterfly valves with unique seating geometry & design disc-shaft engagement provide high cycle life under extreme temperature conditions. With metal to metal tight shut-off characteristics all problems like wear, seat deformation, abrasion, cold flow, crutches & leakage which are generally associated with soft seated are eliminated. REFINERY STEEL MILLS PULP & PAPER MILLS CHEMICAL PLANTS HOW TO MAKE THE BELVEN PRODUCT CODE? BV TYPE - MATERIAL BODY MATERIAL INSIDE MATERIAL SEAT BV TYPE BV10-TRI > High Performance Wafer double offset butterfly valve BV12-TRI > High Performance Lug double offset butterfly valve BV13-TRI > High performance double flanged double offset butterfly valve - MATERIAL BODY 13 > Alu Bronze 44 > A216 WCB > Cast Steel 47 > Low Carbon Steel 63 > CF8 > Stainless Steel 66 > CF8M > Stainless Steel 88 > Duplex MATERIAL INSIDE 13 > Alu Bronze 63 > CF8 > Stainless steel 66 > CF8M > Stainless steel 69 > CF8M polished > Stainless steel 88 > Duplex MATERIAL SEAT 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 24 l 2800 Mechelen l Belgium tel. +32 (0) fax +32 (0) info@belven.com 11