G&L Pumps. TECHNICAL Brochure BAC8100. Series A-C 8100 SPLIT CASE PUMPS

Transcription

1 TECHNICAL Brochure BAC8 Series A-C 8 SPLIT CASE PUMPS

2 TABLE OF CONTENTS Useful Pump Formulas 2 Performance Curves 3-5 Materials of Construction (Standard) 6 Materials of Construction (Optional) 7 Pump Dimensions 8-9 Typical Specifications -11 USEFUL PUMP FORMULAS Pressure (PSI) = Head (feet) x Specific Gravity 2.31 Horsepower = GPM x Head (feet) x Specific Gravity (water) 3960 Head (feet) = Pressure (PSI) x 2.31 Specific Gravity Efficiency (pump) = Horsepower (water) Horsepower (brake) x per cent Vacuum (in. of mercury) = Dynamic Suction Lift (feet) x.883 x Specific Gravity NPSH (available) = Positive Factors Negative Factors Horsepower (brake) = GPM x Head (feet) x Specific Gravity 3960 x Pump Efficiency AFFINITY LAWS: Effect of change of speed or impeller diameter on centrifugal pumps Impeller Diameter Change Speed Change GPM Capacity Feet Head BHP Q2 = D2 Q1 D1 Q2 = RPM2 Q1 RPM1 H2 = H2 = ( ) D2 2 H1 D1 P2 = D2 3 P1 D1 RPM2 2 RPM2 3 H1 P2 = ( P1 RPM1) ( RPM1) ( ) Where Q = GPM, H = Head, P = BHP, D = Impeller Diameter, RPM = Pump Speed PAGE 2

3 60 Cycle Performance Curves G&L Pump Series A-C 8 TOTAL HEAD IN METERS TOTAL HEAD IN FEET x2x11L 3x2x11S 6x4x12A 6x4xM 8x6x17L 6x4x14L 6x4xA x8xs 6x4x14A 8x6x12S 8x6x12M x8xl 8x8x17 x8x17s 8x6x 17M 8x6xA x8x12l 8x6x12XL 8x6x13 12xx12M 12xx14 12xx12XL 1180 RPM x8x17l 12xx17 xx12 x8x12s 2 8x6x12L CAPACITY US GPM CUBIC METERS PER HOUR RPM 0 3x2x11L 0 TOTAL HEAD IN METERS 75 TOTAL HEAD IN FEET x2x11S 6x4xM 8x6x12M CAPACITY US GPM CUBIC METERS PER HOUR PAGE 3

4 60 Cycle Performance Curves G&L Pump Series A-C x4x14L 8x6x17L x8xs 8x6x17M 8x8x17 x8x17l 1770 RPM TOTAL HEAD IN METERS 15 5 TOTAL HEAD IN FEET x2x11S 3x2x11L 6x4xM 6x4x12A 6x4xA 6x4x14A 8x6x12M 8x6x12S 8x6x12XL 8x6xA x8x12l x8x12s 8x6x13 8x8x12 x8x17s 12xx14 xx12 12xx17 12xx12M 12xx12XL 4 3 8x6x12L CAPACITY US GPM CUBIC METERS PER HOUR PAGE 4

5 Cycle Performance Curves G&L Pump Series A-C 8 TOTAL HEAD IN FEET TOTAL HEAD IN METERS x2x11S 3x2x11L 8x6x17L 6x4xM 8x6x17M 6x4x14A 6x4x14 6x4x12A 6x6x9 6x4xA x8xl x8xs 8x6x12M 8x6x12S 6x8x 8x6x9 8x6x12XL 8x6x12L 8x8x17 8x6xA 8x6x13 x8x17l x8x12l x8x12s 8x8x12 x8x17s 8x6x18 14xx14 12xx RPM 12xx12XL 12xx12M 2 xx CUBIC METERS PER HOUR CAPACITY US GPM RPM TOTAL HEAD IN FEET TOTAL HEAD IN METERS x2x11S 3x2x11L 6x4xM 8x6x12M CUBIC METERS PER HOUR CAPACITY US GPM PAGE 5

6 G&L Pump Series A-C 8 Materials of Construction Mechanical Seals Mounted on Shaft Standard Mechanical Seal with External Seal Piping NO. DESCRIPTION MATERIAL Cast Iron, Bronze Fitted Pipe Fitting (Casing) Brass Elbow Malleable Iron Tubing Copper Nipple Malleable Iron Male Connector Brass Casing Assembly 2 Cast Iron (ASTM A48 Class 35A) Casing Joint Gasket (Suction) Paper (Vellumoid 5) Casing Joint Gasket (Discharge) Paper (Vellumoid 5) Casing Ring Bronze (ASTM B ) Shaft 416 Stainless Steel Bearing Housing Cast Iron (ASTM A48 Class 25A) Bearing Housing Cast Iron (ASTM A48 Class 25A) Bearing (lnboard) Ball Steel Bearing (Outboard) Ball Steel Stuffing Box (Mechanical Seal) Cast lron (ASTM A48 Class 25A) Deflector Rubber (BUNA-N) Lip Seal (Bearing) Rubber (BUNA-N) Mechanical Seal (See copy at right) Stn. Steel, Rubber, Carbon, Ceramic Capscrew (Bearing Housing) Steel, Grade Pipe Plugs (Bearing Housing) Steel Key, Impeller Stainless Steel (ANSI 416) Key, Coupling Steel O-Ring (Casing Ring) Rubber (Buna-N) O-Ring (Stuffing Box) Rubber (Buna-N) Retaining Ring (lmpeller) Steel Locknut (Bearing) Steel Lockwasher (Bearing) Steel Spirol Pin (Stuffing Box) 1 4 SS Spirol Pin (Casing Ring) 1 4 SS Impeller Bronze (ASTM B ) OPTIONAL COMPONENTS* Rings, Impeller Bronze (ASTM B5-925) *Optional modifications available, if specified, at extra cost. 1. Located at casing parting line and 0 PSI 6x8xA is cast iron. PAGE 6 Mechanical Seals STANDARD CONSTRUCTION: 175 PSIG (12 BAR) Maximum Working Pressure * PSIG (7 BAR) Maximum Suction Pressure 125#FF ANSI FLANGE (ANSI A21., AWWA C1 and ANSI B16.1 class 125) Type 21, Buna/Carbon-Ceramic,* psig (7 BAR) maximum suction pressure, from - to 225ºF (-29 to 7 C) Optional Seals: Type 21, EPR/Carbon-Ceramic, * psig (7 BAR) maximum suction pressure, from - to 2ºF (-29 to 121 C) Type 21, EPR/Carbon-Tungsten Carbide, * psig (7 BAR) maximum suction pressure, from - to 2 F (-29 to 121 C) OPTIONAL CONSTRUCTION: 280 PSIG (19 BAR) Maximum Working Pressure 0 PSIG (13 BAR) Maximum Suction Pressure 2#FF ANSI FLANGE (ANSI B16.1 class 2 except flanges are flat faced) Type 1, Buna/Carbon-Ceramic. psig ( BAR) maximum suction pressure, from - to 225 F (-29 7 C) Optional Seals: Type 1, EPR/Carbon-Ceramic, psig ( BAR) maximum suction pressure, from - to 2 F (-29 to 121 C) Type 1, EPR/Carbon-Tungsten Carbide, 0 psig (13 BAR) maximum suction pressure, from - to 2 F (-29 to 121 C) 0 PSIG (27 BAR) Maximum Working Pressure 0 PSIG ( BAR) Maximum Suction Pressure 2#FF ANSI FLANGE (ANSI B16.1 class 2 except flanges are flat faced) Type 1B, Buna/Carbon-Ceramic, 0 psig ( BAR) maximum suction pressure, from - to 225 F (-29 to 7 C) Optional Seals: Type 1B, EPR/Carbon-Ceramic, 0 psig ( BAR) maximum suction pressure, from - to 2 F (-29 to 121 C) Type 1B, EPR/Carbon-Tungsten Carbide, 0 psig ( BAR) maximum suction pressure, from - to 2 F (-29 to 121 C) *Maximum suction pressure for 30 RPM is 85 psig (6 BAR). Note: Mechanical seals on shaft arrangement not available on pump sizes 6x8x12M, 8xxS, and 8xxL. Note: For pumps with 0 PSl (27 BAR) working pressure, wear ring clearances are doubled. Derate pump efficiencies by 2 percentage points.

7 G&L Pump Series A-C 8 Materials of Construction Mechanical Seals Mounted on Sleeve Standard Mechanical Seal with External Seal Piping NO. DESCRIPTION MATERIAL Cast Iron, Bronze Fitted Pipe Fitting (Casing) Brass Elbow Malleable Iron Tubing Copper Nipple Malleable Iron Male Connector Brass Casing Assembly 3 Cast Iron (ASTM A48 Class 35A) Casing Joint Gasket (Suction) Paper (Vellumoid 5) Casing Joint Gasket (Discharge) Paper (Vellumoid 5) Casing Ring Bronze (ASTM B ) Shaft 4 Steel (SAE 45) Shaft Sleeve 5 Bronze (ASTM B ) Shaft Sleeve Nut Bronze (ASTM B ) Screw, Locking (Set Screw) Steel Bearing Housing Cast Iron (ASTM A48 Class 25A) Bearing Housing Cast Iron (ASTM A48 Class 25A) Bearing (lnboard) Ball Steel Bearing (Outboard) Ball Steel Stuffing Box (Mechanical Seal) Cast lron (ASTM A48 Class 25A) Deflector Rubber (BUNA-N) Lip Seal (Bearing) Rubber (BUNA-N) Mechanical Seal (See copy at right) Stn. Steel, Rubber, Carbon, Ceramic Set Collar Bronze (ASTM B ) Set Screw 4 SS Capscrew (Bearing Housing) Steel, Grade Pipe Plugs (Bearing Housing) Steel Key, Impeller Steel Key, Coupling Steel O-Ring (Casing Ring) Rubber (Buna-N) O-Ring (Stuffing Box) Rubber (Buna-N) Locknut (Bearing) Steel Lockwasher (Bearing) Steel Spirol Pin (Stuffing Box) 1 4 SS Spirol Pin (Casing Ring) 1 4 SS Impeller Bronze (ASTM B ) OPTIONAL COMPONENTS* Rings, Impeller Bronze (ASTM B5-925) Mechanical Seal Balanced Stn. Steel, Rubber, Carbon, Ceramic *Optional modifications available, if specified, at extra cost. 1. Located at casing parting line. 2. For 280 (19 BAR) and 0 (27 BAR) psi working pressures, casing materials is Ductile iron (ASTM A536, Grade ). 3. Shaft material AISI 41 on pump 4x6x11, 6x8x12M, 8xxS, 8xxL. Mechanical Seals STANDARD CONSTRUCTION: 175 PSIG (12 BAR) Maximum Working Pressure * PSIG (7 BAR) Maximum Suction Pressure 125#FF ANSI FLANGE (ANSI A21., AWWA C1 and ANSI B16.1 class 125) Type 21, Buna/Carbon-Ceramic,* psig (7 BAR) maximum suction pressure, from - to 225ºF (-29 to 7 C) Optional Seals: Type 21, EPR/Carbon-Ceramic, * psig (7 BAR) maximum suction pressure, from - to 2ºF (-29 to 121 C) Type 21, EPR/Carbon-Tungsten Carbide, * psig (7 BAR) maximum suction pressure, from - to 2 F (-29 to 121 C) Packing, * psig (7 BAR) maximum working pressure, 0 to 225 F (-18 to 7 C) OPTIONAL CONSTRUCTION: 280 PSIG (19 BAR) Maximum Working Pressure 0 PSIG (13 BAR) Maximum Suction Pressure 2#FF ANSI FLANGE (ANSI B16.1 class 2 except flanges are flat faced) Type 1, Buna/Carbon-Ceramic. psig ( BAR) maximum suction pressure, from - to 225 F (-29 7 C) Optional Seals: Type 1, EPR/Carbon-Ceramic, psig ( BAR) maximum suction pressure, from - to 2 F (-29 to 121 C) Type 1, EPR/Carbon-Tungsten Carbide, 0 psig (13 BAR) maximum suction pressure, from - to 2 F (-29 to 121 C) 0 PSIG (27 BAR) Maximum Working Pressure 0 PSIG ( BAR) Maximum Suction Pressure 2#FF ANSI FLANGE (ANSI B16.1 class 2 except flanges are flat faced) Type 1B, Buna/Carbon-Ceramic, 0 psig ( BAR) maximum suction pressure, from - to 225 F (-29 to 7 C) Optional Seals: Type 1B, EPR/Carbon-Ceramic, 0 psig ( BAR) maximum suction pressure, from - to 2 F (-29 to 121 C) Type 1B, EPR/Carbon-Tungsten Carbide, 0 psig ( BAR) maximum suction pressure, from - to 2 F (-29 to 121 C) *Maximum suction pressure for 30 RPM is 85 psig (6 BAR). 4. Mechanical seal on sleeve or packing not available for pump size 6x8xA. Note: For pumps with 0 PSl (27 BAR) working pressure, wear ring clearances are doubled. Derate pump efficiencies by 2 percentage points. PAGE 7

8 G&L Pump Series A-C 8 Model Dimensions Pump Size 3x2x11 S, L Motor Frame HA HB HP HR CP DIMENSIONS - INCHES (MM) HC *MAX (1219) (1194) (8) 54 (1372) (152) (57) (718) 61 (1549) 6x4xA (1219) (1524) (546) 60 (1524) (152) (73) (764) 69 (1753) 6x4xM 6x4x12A 6x4x14A 6x4x14L 8x6xA 8x6x12 S, L, XL 8x6x12M 8x6x13 8x6x17 M, L (1219) 53 (1346) (1473) (1600) (1626) (152) (117) (841) 72 (1829) HD HO S & Z VH VH1 W X YY (388) (560) (464) (656) 5. (1) 7.00 (178) (464) (664) 6. (165) (19) 78 (1981).25 (514) (714) (1219) 53 (1346) (1473) (152) (117) (841) 63 (1600) (1626) 66 (1677) (1270) 55 (1397) (1473) (1626) (1727) (152) (83) (781) 70 (1788) (464) (664) 6. (165) (489) 28. (723) 7.75 (197) (19) 74 (1880) (547) (889) (1270) (1397) (1473) (152) (83) (781) 64 (1626) (1473) (15) (1626) (152) (273) (16) (1759) (1727) (18) (1219) 51 (1296) (1372) (546) (152) (83) (781) 61 (1549) (1524) 64 (1626) (489) (733) (5). (775) (5).85 (784) 7.75 (197) 8.25 (2) 9.00 (229) (1473) 63 (1600) (5).85 (784) (1626) 72 (1829) (152) (118) (841) (229) (19) 81 (58) (591) (834) (1575) (1702) (1727) (152) (143) (937) 76 (19) (1575) 67 (1702) (1727) (152) (143) (937) 76 (19) (19) 82 (83).00 (8) 29. (747) (5) (838) 8.00 (3) 9.00 (229) 6.80 (173) 7.69 (195) 7.88 (0) 7.88 (0) 9. (234) 9.62 (244) 9.25 (235) 9.60 (244) 9.60 (244) 9. (239) (299) (6) (438) 18. (470) 18. (470) 17. (445) 17. (445) (584) 17. (445) 18. (470) (5) (5) 9.00 (229) 11. (292) 11. (292) 11. (292) 11. (292) 11. (292) 12. (318) (3).00 (254) (5) (3) (3) (3) (3) 12. (318) 15. (394) (6) PAGE 8

9 G&L Pump Series A-C 8 Model Dimensions (continued) Pump Size 8x8x12 8x8x17 x8x12 S, L x8x17 S, L x8x S, L xx12 12xx12 M, XL 12xx14 12xx17 Motor Frame HA HB HP HR CP DIMENSIONS - INCHES (MM) HC *MAX (1575) (1702) (1727) (152) (143) (937) 76 (19) (1676) 6.00 (152) 7.00 (178) (5) 72 (1829) (19) (2159) (747) 86 (2184) (127) (3) 93 (2362) HD HO S & Z VH VH1 W X YY.00 (8).25 (768) (603) (908) (1575) (1702) 21. (546) (813) (1676) (152) (178) (1829) (5) (19) 85 (2159) 23. (597) (864) (747) (127) (3) (1676) (1829) (591) (916) (19) (152) (178) (2159) (5) (641) (967) (2184) 93 (2362) (747) (127) (3) (1676) (660) (1829) (692) (152) (178) (19) 85 (2159) 31. (5) (743) (798) (2184) 93 (2362) (127) (3) (747) (747) (1727) 80 (32) 68 (1727) 80 (32) 66 (1676) 6.00 (152) 5.00 (127) 6.00 (152) 5.00 (127) 6.00 (152) 8. (216) (81) (241) 8. (216) (81) (241) 7.00 (178) (5) (19) (2159) (747) 86 (2184) (127) (3) 93 (2362) (1676) 6.00 (152) 7.00 (178) (5) (19) (2159) (747) 86 (2184) (127) (3) 93 (2362) 49. (1257) 51. (18) 75 (1905) 22. (572) (656) 96 (2438) 24. (622) (907) 75 (1905) 24. (622) (914) 96 (2438) 26. (673) (965) 72 (1829) (641) (983) (692).69 (34) 72 (1829) (641) (983) (692).69 (34) 8.00 (3) 9. (241) 8. (216).00 (254) 9.00 (229).00 (254) (280) (280).25 (260) (5). (267) (325) (392) (284) 11. (292) (341) (341) (299) 13. (343) (5) (363) (565) (380) (380) (5) (573) (573) (573) (573) (611) (611) (573) (573) (381) (6) (457) (6) (6) (457) (457) 16. (419) 16. (419) (432) (457).00 (8) (457) (483).00 (8).00 (8) STANDARD: 125#FF ANSI FLANGE (ANSI A21., AWWA C1 & ANSI B16.1 CLASS 125) OPTIONAL: 2#FF ANSI FLANGE (ANSI B16.1 CLASS 2 EXCEPT FLANGES ARE FLAT FACED) VH1 APPLIES TO 280 AND 0 PSIG RIBBED CASINGS. DIMENSIONS ARE SUBJECT TO CHANGE. NOT TO BE USED FOR CONSTRUCTION PURPOSES UNLESS CERTIFIED. *MOTOR DIMENSIONS ARE APPROXIMATE FOR T FRAMES, VARY BY MANUFACTURER AND MOTOR TYPE. PAGE 9

10 Typical Specifications for G&L Pump Series A-C 8 Horizontal Split Case Pumps Specifications 2.01 DOUBLE SUCTION, HORIZONTAL SPLIT CASE PUMPS (BASE MOUNTED) A. MANUFACTURER: Contractor shall furnish and install new double suction horizontal split case pumps for chilled water and hot water heating systems as indicated on the drawings. Pumps shall be model G&L Pump Series A-C 8 under base bid. Equivalent units may be submitted as deduct alternates. Pumps shall meet types, sizes, capacities, and characteristics as scheduled on the Equipment Schedule drawings. B. DOUBLE SUCTION, HORIZONTAL SPLIT CASE PUMP (BASE MOUNTED) : 1. The pumps shall be long coupled, base mounted, single stage, double suction, horizontally split case design, in cast iron bronze fitted construction specifically designed and guaranteed for quiet operation. Suitable standard operations at 225 F (7 C) and 175 psig (12 BAR) working pressure or optional operations at up to 2 F (121 C) and 280 psig (19 BAR) or 0 psig (27 BAR) working pressures. Working pressures shall not be de-rated at temperatures up to 2 F (121 C). The pump internals shall be capable of being serviced without disturbing piping connections or electrical motor connections. 2. A bearing housing shall supply support for a pair of heavy-duty regreaseable ball bearings. An inboard single row bearing will absorb thermal expansive forces while an outboard double row bearing will be clamped in place to absorb both radial and thrust loads and keep the rotating element in proper axial alignment. Bearings shall be replaceable without disturbing the system piping and shall be regreaseable without removal of the bearings from the bearing housing. 3. The impeller shaft shall be a solid 416 stainless steel shaft. 4. Pump shall be equipped with a pair of externally flushed mechanical seal assemblies in direct contact with the pump shaft. Seal assemblies shall be a Type 21 having a stainless steel housing, Buna bellows and seat gasket, stainless steel spring, and be of a carbon-ceramic design with the carbon face rotating against a stationary ceramic face. 5. Impeller shall be of the enclosed double suction type made of bronze, both hydraulically and dynamically balanced to ANSI/HI , section , figure 1.6, balance grade G6.3 keyed to the shaft and fixed in the axial position. 6. A center drop-out type coupling, capable of absorbing torsional vibration, shall be employed between the pump and motor. On variable speed applications the coupler sleeve should be constructed of an EPDM material to maximize performance life. 7. The coupling shall be shielded by a dual rated ANSI B15.1, Section 8 and OSHA compliant coupling guard and contain viewing windows for inspection of the coupling. 8. Pump volute shall be of a cast iron (rated for 175 psig [12 BAR] Max WP) or ductile iron (rated for 280 psig [19 BAR] or 0 psig [27 BAR] Max WP) axially-split design with flanges (175 psig [12 BAR] drilled for 125 PSI ANSI companion flanges or optional 280 psig [19 BAR] and 0 psig [27 BAR] working pressures are drilled 2 PSI flange drilled) and mounting feet integral cast into the bottom half of the casing. 280 psig (19 BAR) and 0 psig (27 BAR) 6x8xA s are cast iron. Suction and discharge flanges shall be on a common centerline in both the horizontal and vertical planes, and the volute shall include Bronze Casing Wear Rings, priming port, gauge ports at nozzles, and vent and drain ports. The upper half casing shall be capable of being removed without disturbing piping connections or electrical motor connections. PAGE

11 9. Pump seal flushing lines shall be mounted on the upper half pump casing. Sealing from an external source shall be possible for lubrication and/or cooling.. Pump and motors shall be factory aligned, and shall be realigned after installation by the manufacturer s representative. Motors shall be of electrical characteristics as scheduled, denoted and/or as indicated on the electrical plans and specifications. Pump characteristics shall be such that the head of the pump under varying conditions shall not exceed the rated horsepower of the drive motor. 17. Each pump shall be factory hydrostatically tested per Hydraulic Institute standards and name-plated before shipment. It shall then be thoroughly cleaned and painted with at least one coat of high-grade paint prior to shipment. 18. Pumps shall be Series A-C 8 as manufactured by or approved equal. 11. Base plate shall be of structural steel or fabricated steel channel with fully enclosed sides and ends, and securely welded cross members. Grouting area shall be fully open. The combined pump and motor base plate shall be sufficiently stiff as to limit the susceptibility of vibration. The minimum base plate stiffness shall conform to ANSI/HI for Horizontal Baseplate Design standards. 12. Base shall be capable of being field grouted. 13. The pump(s) selected shall conform to ANSI/HI standards for Preferred Operating Region (POR) unless otherwise approved by the engineer. The pump NPSH shall conform to the ANSI/HI standards for Centrifugal and Vertical Pumps for NPSH Margin. 14. Pump rotation shall be right hand or left hand as viewed from the pump end. 15. Pump manufacturer shall be ISO-9001 certified. 16. The seismic capability of the pump shall allow it to withstand a horizontal load of 0.5g, excluding piping and/or fasteners used to anchor the pump to mounting pads or to the floor, without adversely affecting pump operation. PAGE 11

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