Cast Steel Bolted Bonnet Valves (BL Series) Model Numbers

1 cast Steel Bolted Bonnet Valves - BL SeriesGate Valve - BL5 SeriesGate Valve FeaturesGlobe Valve - BL6 SeriesGlobe Valve FeaturesSwing Check Valve - BL7 SeriesOptional FeaturesModel NumbersCast SteelBolted Bonnet Valves (BL Series) GATE VALVEGate Valves are the most commonly used shut off valve in the industry today. They are used where minimum pressure drop andbi-directional on-off service is required. Normally Gate Valves are not designed for throttling service. Prolonged use in the partially open position will damage seating surfaces. Gate Valves are available with wedge configurations of solid and flexible type to meet the specific service conditions.

2 Gate Valves normally are handwheel operated but are also available with gearing and electric motor actuator for remote Steel Bolted Bonnet Valves - BL SeriesYOKE BUSH : Furnished in Aluminium Bronze material. Larger sizes have yoke bush along with ball : Two-piece gland/gland flange is self-aligning to eliminate stem damage from cocked SEAT : Machined Bonnet stem bushing provides back up stem : Precision ground stem enables smooth operation and ensures leak tightness in : Heavy pattern fully guided wedge precision fitted to body seats for maximum shut off.

3 Available in solid and flexible CONNECTIONS : Choice of flanged or butt weld ends for piping : Large handwheels for easy operation. Also available with gearing & motor actuators for more difficult STEM : Easily visible open-close NIPPLE : Yoke bush equipped with fittings to minimise wear and operating BOLTS : Facilitate easier maintenance and packing BOX : Deep stuffing box provides maximum packing for stem seal. Optional lantern-rings and plugs are RINGS : Renewable seat ring for easy : Heavy duty body with sufficient wall thickness for maximum service life.

4 Provided with bosses for optional bypasses or STANDARD: The Valves meet the requirements of standardsAPI 600 & ASME B STANDARD: API 598 & ASME B Valve - BL5 Series78912103114125136 No PART NAME CARBON Steel STAINLESS Steel 1 Body ASTM A216 - WCBASTM A351 - CF8M 2 Seat Ring/ Carbon Steel with ASTM A451 - CPF8M Body seat 13% Cr SS facing 3 Bonnet /YokeASTM A216 - WCBASTM A351 - CF8M 4 Wedge Carbon Steel with ASTM A351 - CF8M 13% Cr SS facing 5 Stem ASTM A182 - F6aASTM A182 - F 316 6 Yoke Brush Al BronzeASTM A439 - D2 7 Gasket

5 Reinforced Asbestos/Teflon Spiral Wound (Asbestos) 8 Packing RingGraphited AsbestosTeflon impregnated asbestos 9 Handwheel Malleable ironMalleable iron 10 Stud ASTM A193 - B7 ASTM A193 - B7 11 Nut ASTM A194 - 2H ASTM A194 - 2H 12 Back seat Carbon Steel withA182-F316 13% Cr SS facingGate Valve BL5 SeriesValves with other TRIM MATERIAL combination to API 600 can also be supplied. WCC, WC6, WC9, CF8, LCB or All Stainless Steel Valves can also be supplied when Steel Bolted Bonnet Valves - BL SeriesREFERENCESINDEXSTART CONTACT US EXITNOTEGate Valve - FeaturesBHEL cast Steel Bolted Bonnet Gate Valves are available with a full selection of wedge types to match operating service conditions.

6 Specify the type best suited to your service is the most common wedge type. It is also the strongest, simplest and highly resistant to vibration. It is not self-compensating to seat distortion caused by high temperature thermal expansion or bending WEDGECast Steel Bolted Bonnet Valves - BL WEDGE (Single piece) :The flex wedge is machined with a circumferential groove to allow the seating faces to move independently and adjust to movement of the body seats. It is used where line loads or thermal expansion of the system is likely to distort the seat face in the valve.

7 This type of wedge is not recommended for corrosive services but is ideally suited for steam or high temperature services. Flex wedge (Two piece) : Optional for bigger size Valves (sizes 14 and above). cast Steel Bolted Bonnet Valves - BL SeriesGate Valve - FeaturesGate Valve - FeaturesBody/ Bonnet joints on BHEL gate Valves are designed for rugged services. The standard joint varies depending on valve class. These standard joints are 150 - The standard, flat, oval Bonnet joint is the simplest configuration for low pressure services. Our standard gasket isflat asbestos but spiral wound gaskets are available for critical 300, 400, 600 & 900 - The circular male and femalebonnet joint is self-aligning and well suited for intermediatepressure classes.

8 Valves in these classes are available withspiral wound Bonnet JOINTBODY Bonnet JOINTCast Steel Bolted Bonnet Valves - BL Valve - FeaturesT-HEAD STEMPACKING ADJUSTMENTAll BHEL Gate Valves are provided with T-head connections. This design also allows the wedge to self-align, eliminating the possibility of a bent stem jamming the Valves are provided with a two-piece packing gland to minimise the possibility of scoring the stem, if the gland is tightened unevenly. Eye bolts remain fastened to the Bonnet ; they swing out of the way to simplify packing replacement and are oriented so that they can be adjusted from one side of the Steel Bolted Bonnet Valves - BL Steel Bolted Bonnet Valves - BL SeriesGLANDBALL BEARING YOKE BUSHP acking rings are of high grade braided asbestos reinforced and graphited.

9 Other packings are available when specified. Valves with lantern rings can be supplied when Valves require tremendous amount of torques to open and close the valve. Use of ball bearings in the yoke bush reduces the operating torques and easy operation of handwheel is Valve - Features*Gear OperatedClass 150 Gate Valve - DimensionsB2 Model (mm)SizeInch mmLL1 VZDD1D2D3 Adnf25017821640565250 121250 169400 226450 272450 1135 333450 * 350381572 1262 360460 * 400406610 1420 410460 * 500457711 1650 509460 * 600508813 2020 621610 1212Wt.

10 (Kg)D1D2D3dxnfALVDZCast Steel Bolted Bonnet Valves - BL SeriesFlange dimensions are as per ASME B Weld ends as per ASME B length as per ASME L1 denotes the overall length of a butt weld end *Gear OperatedInchmmL-L1 VZDD1D2D3 AdnfWt.(Kg)Size234681012*14*16*20* dimensions are as per ASME B Weld ends as per ASME B length as per ASME L1 denotes the overall length of a butt weld end (mm)LVZDD1D2D3dxnfACast Steel Bolted Bonnet Valves - BL SeriesClass 300 Gate Valve - DimensionsNOTENOTEF lange dimensions are as per ASME B Weld ends as per ASME B length as per ASME denotes the overall length of a butt weld end valve.