weir split case brochure
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Designed to simplify maintenance and reduce life-cycle costs
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ExcellentPower & IndustrialSolutions
* For expanded flows and heads, see large capacity brochure.
Weir Split Case Pumps- The Weir Split Case pump is designed to make maintenance straight forward, minimizing operating costs and increasing the pump’s overall life span.
High efficiency, low vibration, & easy maintenance
Weir Split Case single-stage double suction centrifugal pumps are designed and developed using advanced technology to meet demanding market requirements. The Weir Split Case combines high efficiency, low vibration, and easy maintenance that provides the customer with a pump that has a extended operational life.
The Weir Split Case is designed with the latest 3D computer aided design technology. We utilize the proven lean manufacturing processes with dedicated production units that equals less waste and greater efficiency. All of this combined allows us to provide the highest quality pumps and components, delivered on-time at a competitive price.
Photos: Above, Weir Split Case shown with top cover removed. To the right, Weir Split Case pumps installation.
Parts Name Material Specification 1 Material Specification 2 Material Specification 3
Pump Casing Cast Iron (GG25) Ductile Iron (GGG40)
Pump Cover Cast Iron (GG25) Ductile Iron (GGG40)
Impeller Cast Iron (GG20) Bronze (G-CuSn10Zn) Bronze (G-CuZn15Si4)
Seal Ring Cast Iron (GG20) Bronze (G-CuSn10Zn) Bronze (G-CuZn15Si4)
Seal Body Cast Iron (GG20) Ductile Iron (GGG40)
Shaft Carbon Steel (CK45) Alloyed Steel (41Cr4) Stainless Steel (420)
Shaft Sleeve Cast Iron (GG20) Stainless Steel (420)
WEIR Split Case Material Specification
Capabilities• Flow*: up to 132,000 GPM / 30,000 m3/hr
• Head*: up to 755 ft. / 230 m
• Diameter inlet / outlet: 150 mm to 1600 mm
• Horizontally coupled design
• Vertically coupled design
Benefits• High Efficiency
• Low Vibration
• Easy Maintenance
• Extended Operational Life
• Lower Cost
• Improved Performance
Applications• Water Supply
• Wastewater
• Pulp & Paper
• Petrochemical
• Power Industry
• General Industry
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The Weir Split Case series single stage double suction centrifugal pumps are designed and developed using advanced technology to meet demanding market requirements.
Photos: Above, installation of Weir Split Case pumps.
CASING The double-volute casing is designed to re-duce radial forces resulting in lower bearing loads and longer service life. Upper case is easily disassembled and adjustments made without disturbing suction and discharge piping. Pump inlet and outlet connections can be reversed to meet customers site requirements.
BEARINGS Standard construction includes oversized grease lubricated ball bearings. Oil lubricat-ed bearings are also available as required.
SEALING OPTIONS Stuffing box is available with either non-asbesto soft packing or a wide range of mechanical seal arrangements. The shaft is protected by a stainless steel shaft sleeve.
IMPELLER Dynamically balanced double-suc-tion impeller is designed using the latest in 3D computer technology to optimize hydraulic performance and minimize axial forces. Each impel-ler can be tailored to the customer’s design conditions.
BASEPLATE Minimum 3/8” thick fabricated steel construction suitably reinforced to support the full weight of the pump and motor.
SHAFT Alloy shaft is equipped with a renewable sleeve to protect the shaft from the pump liquid. Shaft is available in various materials ranging from (CK45) carbon steel to (420) stainless steel.
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Weir Specialty Pumps
440 West 800 South P.O. Box 209 (84110-0209) Salt Lake City, UT 84101 USA
Tel: 801 359 8731 Fax: 801 530 7828 email: info@weirsp.com www.weirsp.com
Standard Type Installation
WEIR Split Case Performance Chart*
* For expanded flows and heads, see large capacity brochure.
© 2009 Weir Specialty Pumps. All Rights Reserved. Brochure: Weir_Split_Case_Brochure
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ExcellentPower & IndustrialSolutions
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