CPS. Horizontal Split Case Centrifugal Pump

Transcription

1 CPS Horizontal Split Case Centrifugal Pump CPS Series pumps, are single-stage double suction split case centrifugal pumps designed for applications of clean water or similar liquids without solids in water works, municipal and industrial projects, as well as mines, power plants and agricultural irrigations etc. The horizontal installation constructed with the suction and discharge nozzles located in the lower part and in right angle to the pump shaft central line, makes it convenient to pull out the rotor after removing the pump cover when maintaining and repairing without disturbing the inlet and outlet piping. Medium contacted parts are selectable from ductile cast iron, cast steel and stainless steel upon request.

2 FEATURES Standardized design with generalized products series. Double volute casing construction perfectly balances the radial forces, ensuring minimal shaft deflection lowered bearing loads. Double suction impeller design appropriately balances the axial forces with each impeller balanced statically and dynamically in accordance with ISO1940. Flanges are drilled to meet GB, ISO, DIN, BS or ANSI standards. Deep groove ball bearings are grease lubricated and sealed for life with optional oil lubrication available upon request. Shaft sealing with uncoiled soft packing or single-action unbalanced mechanical seal in accordance with DIN 960, independent of rotation direction. Balanced mechanical seal shall be applied for operating pressures higher than Bar. Model Nomenclature E.G. CPS CPS Split Case Centrifugal Pump 300 Suction Dia. (mm) 125 Discharge Dia. (mm) 290 Impeller DN (mm) Materials of Construction GB DIN Volute Casing & Cover Cast iron HT250 GG-25 Ductile Cast Iron QT GGG-40 Cast Steel ZG GS-C25 Impeller Cast iron HT250 GG-25 Bronze ZCuSn10Si2 G-CUSn10Zn Brass ZCuSnSi4 G-CuZn15Si4 Stainless Steel ZG1Cr18Ni12Mo2Ti Performance Data Pump Size: DN 80 ~ 800 Flow Range: Q up to 2800l/s Head Range: H up to 220m Operating Pressure: P up to 25 Bar Liquid Temperature: t up to 105 C Shaft Carbon Steel 45# C45N Cr Steel 2Cr Casing Wear Ring Cast iron HT250 GG-25 Bronze ZCuSn10Si2 G-CUSn10Zn Brass ZCuSnSi4 G-CuZn15Si4

3 Your technical advantages Innovative casing in-line design Short distance between bearings and correspondingly short shaft Leak-tight due to compact joint flange with long, prestressed bolts Counter rotation possible with similar parts Double volute version for appropriate total heads Easy mounting-self-aligning upper casing Advantages High performance impeller Minimal axial thrust due to double entry impeller Optional impeller wear rings New vane passage with excellent hydraulic characteristics Your service advantage Service friendly shaft Completely sealed and dry for zero corrosion Short and rigid with negligible vibrations Replaceable shaft protecting sleeves No threads exposed to pumped medium, long operation life and no corrosion Adjustment free assembly Quick and easy assembly/dismantling of the rotor components due to elastically prestressed mountings Excellent efficiencies Outstanding NPSH Computer optimized double entry impellers Smooth surface inside the casing and on the impeller Smooth, quiet running also guaranteed by a large impeller eye area No drop in efficiency due to cost effective replaceable casing wear rings and impeller wear rings Smooth, low loss running due to a swirl free inlet Long life bearings Covered, sealed for life grease lubricated antifriction bearings for a long service life Open gland, I.E enough space for service activities Optional: oil lubrication with constant level oiler Application orientated seals Asbestos free, potable water quality soft packed stuffing boxes Optional: mechanical seals

4 Gejia District, Liuyang City, Hunan, China Zip: Pump Configuration Drawings Horizontal installation up to A Fixed bearing Oil supply fixed and radial bearing Radial bearing Variant Oil lubrication with labyrinth sealing Variant Oil lubrication with labyrinth sealing Part no. Part designation Part no. Part designation Part no. Part designation 1 Volute casing 131 Gland 210 Constant level oiler 123 Pump shaft 128A Gland packing 2 Oil sight gauge 117 Impeller 130 Stuffing box insert 223 Special pipe part 121 Deep grove ball bearing 127 Neck ring 211 Extension pipe 125 Bearing housing 129 Lantern ring 222 Vent plug 126 Bearing cover 118 Casing wear ring 111 Nut 132 V-Ring 1 Sleeve 122 Circlip 115 O-Ring 119 Shaft protecting sleeve 112 Spring 120 Radial shaft seal ring 113 Washer 114 Shaft seal housing 110 Cap CHANGCHA Pumps & Systems Rm 1319 Conference Center, Beijing Science & Technology University, 30 Xueyuan Road, Haidian District, Beijing, China Copyright 2002 Changcha Pumps & Systems. All Rights Reserved.

5 Pump Configuration Drawings Parts Code Casing Cover 123 Shaft 117 Impeller 121A Journal Ball Bearing 121B Journal Roller Bearing Bearing Housing Bearing Gland Bearing Cover Wearing Wearing O-ring Framed Oil Sealing 131 Gland Packing 127 Stuffing Box Insert 129 Lantern Ring 128A Packing 118 Casing Ring Impeller Ring 3 Washer Shaft Sleeve Sleeve 140 Oiler 141 Vent Plug 142 Temp. Sensor Screw Bolt Round Nut 112 Washer

6 Materials & Application Temperatures Suffing box/mechanical seal:max. 105 Liquid handled Raw water/clean water. Solids content max.80mg/l 2) Part no. Part designation Material combinations 01 1) 011 1) 02 1) 021 1) Volute casing HT250 QT HT250 QT HT250 QT HT250 QT ZG Dhaft 2Cr ) 2Cr Im peller ZCuSn10Zn2 1) /ZCuZnSi4 HT2502)/ZG1Cr18Ni12Mo2Ti ZG1Cr1Ni12Mo2Ti 125 Bearing housing HT Bearing cover HT Shaft seal housinght250 ZG Gland HT250 1Cr18Ni12Mo2Ti 118 Casing wear ring ZCuSn5Pb5Zn5/ZCuZnSi4 HT250/ZG0Cr18Ni12Mo2Ti ZG0Cr18Ni12Mo2Ti Im peller wear ring 119 Shaft prot sleeve 1Cr18Ni9Ti 2Cr13 1Cr17Ni2 128B Mechanical seal S i-s ic/s i-s ic 1)Not for pump sizes , n=3500, and , n=1750 1/min 2)Only for pump sizes , n=3500; not for pump sizes and , n=2900; not for pump sizes , , , , , and , n=1750; not for pump sizes , and , n= )Only for motor power 20, dw=40, n=3500r/min 4)For other liquids and solid contents on request Pressure Limits - ZCuSn5Pb5Zn5 ZCuZnSi4 5)For material combinations 01, 01, 03, 04, at flange execution acc. To ANSI Class 125 the permissible operating pressures have to be reduced acc. To this standard. If necessary consult TURE. - HT250 1Cr18Ni12Mo2Ti 1Cr18Ni12Mo2Ti Permissible operating pressures in bar Max. permissible test pressure in bar Pump sizes M ate ria l co m b inations ) ) ) ) ) ) )

7 Technical Data Nominal diameter Stuffing box data P um p s ize s S ha ft units Diameter Length Nos. packing rings stuffing box / m echnical seal d D L per stuffing box )Values are valid for casing materials HT250 For casing material QT use 1. 4-fold value and for ZG25 use 1. 7-fold value. Pump sizes Impeller dimension (mm) Permissible Permissible Mass moments of inertia J nozzie momentsnozzle moments (w ithout coupling) free passage max, diameter Fx, Fy, Fz 1) Mx, My, Mz 1) kgm 2 + / - 10% N Nm w ithout water w ith water CHANGCHA Pumps & Systems Rm 1319 Conference Center, Beijing Science & Technology University, 30 Xueyuan Road, Haidian District, Beijing, China Copyright 2002 Changcha Pumps & Systems. All Rights Reserved.

8 n = 1450rpm Family Curves 50Hz

9 Family Curves 50Hz

10 n=3500 r/min Family Curves 60Hz n=1750 r/min

11 Performance Curves Explanations The NPSH values given in the performance curve sheets are minimum values which correspond to the inception of cavitation, they apply to degassed water. The NPSHA values provided by the plant must range above the curve by a certain distance,see fig. A. In case of large pumps or high speeds the NPSHA values under part load conditions must be at least as high as that at the optimum point, see fig. B. The relevant distance value S, which depends on the pump size, the speed and the impeller material, is indicated in form of a table for each characteristic curve. Operating data guaranteed to ISO2548 C/DIN 1944III. The total heads and the performance characteristics refer to mediums compressed with ρ=1.0kg/dm 3 and a kinematics viscosity v up to 20mm 2 /s. If the density is not 1.0 kg/dm 3, the performance characteristics are to be multiplied by ρ. Range of Operations The range of operations is defined by requirements of the pumping system as well as by hydraulic ad mechanical limitations of the pumps. Minimum flow In normal service the pumps should not be operated to the left of the line indicating Q min. Lower flows, up to 0.05xQ optimum, are permissible for short periods of up to 5 minutes. Any longer operation will cause overheating within the pump. However, at these lower flows the influence of the system as well as the pump configuration may cause the pump head to vary, Such head variations are significant if the pump is to operate in a system where the static head is a major portion of the total head or parallel or variable speed operation is to be considered. Maximum flow The limit of operation is given by the NPSH characteristic with the indicated margins S, relative to NPSHA. This is further explained in figures A,B and C. In some cases there are also an operational limit due to mechanical considerations. In such cases the limit of operations is indicated by the Q max line.

12 Specification Model Capacity head Speed Power Eff. (NPSH) A Im pelle Dia of r Weigh t m 3 /h L/s (m ) (r/m in) (kw ) η (% ) (m ) (m m ) (kg) CPS CPS CPS CPS CPS

13 Specification Model Capacity head Speed Power Eff. (NPSH) A Impelle Dia of r Weigh t m 3 /h L/s (m) (r/min) (kw) η(%) (m) (mm) (kg) CPS CPS CPS CPS CPS

14 Specification Model Capacity head Speed Power Eff. (NPSH) A Im pelle Dia of r Weigh t m 3 /h L/s (m) (r/min) (kw) η (% ) (m) (mm) (kg) CPS CPS CPS CPS CPS CPS CPS CPS

15 Model Capacity Specification head Speed Power Eff. (NPSH) A Impelle Dia of r Weigh t m 3 /h L/s (m) (r/min) (kw) η(%) (m) (mm) (kg) CPS CPS CPS CPS CPS CPS

16 Specification Model Capacity head Speed Power Eff. (N P S H ) A Im p e lle Dia of r Weigh t m 3 /h L/s (m ) (r/m in) (kw ) η (% ) (m ) (m m ) (kg) CPS CPS CPS CPS CPS CPS CPS CPS CPS CPS CPS A CPS B CPS CPS A CPS B CPS A CPS B CPS CPS CPS

17 Performance Curves Limit of operation at NPSH

18 Gejia District, Liuyang City, Hunan, China Zip: Installation Drawings & Dimensions Pump size Flange dimensions Pump dimensions DN1 DN2 S1 S2 A1 A2 d3 f H1 H2 H3 L2 L3 Z 1) Pump size Foot dimensions Shaft W eight (kg) b1 d2 m1 m2 n1 n2 n3 n4 s d1 L1 bare shaft pump water content

19 Installation Drawings & Dimensions Standard Flange Design: Pump size GB2555 DIN2501 ISO 7005/2 Nominal pressure acc, to: BS4504 PN Table /11 Class 250 PN25 PN Table /11 Class 250 PN25 Table 25/11 Class 250 PN Table /11 Class 250 PN25 Table 25/11 Class 250 PN Table /11 ANSIB.1 QT /ZG Nominal pressure acc. ro: GB2555 DIN2501 ISO 7005/2 BS4504 ANSIB.1 Table 25/11 Class 250 PN Table /11 Class 250 PN25 Table 25/11 Class 250 d2 Number of holes n Flange Dimensions Drilling Diagram Standard DN80 DN100 DN125 DN150 DN200 d2 k n d2 k n d2 k n d2 k n d2 k n IOS 7005/ DIN 2501 PN GB IOS 7005/ DIN 2501 PN GB BS4504 Table / BS4504 Table 25/ ANSI B.1 Class

20 Installation Drawings & Dimensions Major external pump Dimensions and Weights Pum p size Flange dim ensions all dimensions in mm Pum p dim ensions DN1 DN2 S1 S2 A1 A2 d3 f H1 H2 H3 L2 L3 Z 2) (508) 1) 32(47.6) 1) (54) 1) (50.8) 1) (57.2) 1) (57.2) 1) (60.3) 1) 36 (54) 1) (57.2) 1) Foot dimensions Shaft W eight (kg) Pump size water b1 d2 m1 m2 n1 n2 n3 n4 s d1 L1 bare shaft pump content ) For casing material QT400-18,ZG ) z = The dimensions to be maintained around the casing cover for dismantling of the rotor

21 Installation Drawings & Dimensions Standard Flange Design: Pump size Nominal pressure acc, to: QT /ZG GB2555 GB2555 DIN2501 ANSIB BS4504 ANSIB.1 DIN2501 BS4504 ISO 7005/2.1 ISO 7005/2 PN PN25 PN10 PN PN25 PN25 PN10 PN PN25 PN25 PN10 Table /11 Table 25/11 Table 10/11 Table /11 Table 25/11 Table 25/11 Table 10/11 Class 125 Table /11 Table 25/11 Table 25/11 Class 250 Class 125 Class 250 Class 250 Class 250 Class 250 PN25 PN25 PN25 Table 10/11 Class 125 PN25 Table 25/11 Table 25/11 Table 25/11 Table 25/11 Class 250 Class 250 Class 250 Class 250 d2 Number of holes n Other flange desings are avaliable on request Flange Dimensions Drilling Diagram Standard DN200 DN250 DN300 DN350 DN400 DN450 d2 k n d2 k n d2 k n d2 k n d2 k n d2 k n IOS 7005/ DIN 2501 PN GB IOS 7005/ DIN 2501 PN GB IOS 7005/ DIN 2501 PN GB BS4504 Table 10/ BS4504 Table / BS4504 Table 25/ ANSI B.1 Class ANSI B.1 Class

22 Installation Drawings & Dimensions For Pumps From CPS To CPS Permissible deviations for: DIN747 (Center line heights) DIN78 (Dimensions without indication of tolerances) DIN 88 GTB 18 (Cast iron Parts) DIN 85 GTB 18 (Ductile Cast iron) DIN 83 GTB 18 (Cast steel) R= (Keyway and key to DIN 6885) DIN 6885 (Shaft diameter: Tolerance h 6 to DIN 7155) 1M 2M 5D 6B 8B Pressure gauge Vaccum gavge Vebt Drainage Leakage liquid drain TS R 1/2 R 1/2 R 1 R 1 R 1 TS R 1/2 R 1/2 R1 1/2 R1 1/2 R 1

23 Installation Drawings & Dimensions Pump size Flange Pump Dimensions Shaft Ext. Weight Inlet Outlet a1 a2 h1 h2 h3 h4 L2 L3 d1 L1* kg DN1 DN Dimensions of Foundation Flange Max pressure (bar) Casing Material Pump HT250 Qt b1 b2 b3 L4 L5 L6 L7 t1 t2 u1 u2 GG-25 GGG-40 Model A48 class 35 A536 class

24 Vertical installations Notes: 1) Depending upon motor ratings. 2) DJ - available upon request. Rotation & Flow Direction CCW CW CCW CW

25 Sealing Water Piping Arrangements Packing Flushing M. Seal Flushing Packing & Guide Bearing Flushing M. Seal & Guide Bearing Flushing Vent Valve Vent Valve Arrangements Valve & Piping Packing Pt100 Temp. Sensor Vent Valve & Piping Guide Bearing Vent Valve & Piping Guide Bearing M. Seal

26 102 Volute Casing 0 Guide Bearing Cover 182 Bracket 211 Shaft 234 Impeller 235 Deep Groove Ball Bearing 341 Motor Base 342 Bearing Housing 360 Bearing Gland 411. V-ring 412. O-ring 421. Radial Seal Ring 441 Sealing Housing 452 Packing Gland 454 Packing 455 Stuffing Box Insert 457 Neck Ring 458 Packing Ring 502 Casing Wear Ring 5 Shaft Sleeve 525 Bush 545 Guide Bearing 550. Washers 719 Hose 920 Nut 932 Circlip 950 Butterfly Spring

27 Standard Supply M. Seal Up to : DIN Shaft 433 Mechanical seal 441 Seal Housing 471 Sealing Gland 5.1 Sleeve Bush 901. Bolt Notes: Fig.1 applicable to shaft 100mm Fig.2 applicable to shaf 110mm Fig.1 Fig Installations Pump Cover & Rotor

28 Vertical Installation Dimensions Flanges: Flat flange AISI rating Piping connected to pump without any load CPS To CPS Tolerance: Centerline height: DIN747 Dimension error: DIN78 Castings: DIN86 GTB18 Connection Dimensions: 1M Pressure Gauge: G1/2 5D Vent : G1/2 6B Drain : G1/2 8B Leakage Vent : G3/4 Key & keyway: up to DIN 6885 Table 1 Shaft Dia. Tolerance h6: up to DIN 7155

29 Vertical Installation Dimensions Flanges: Flat flange AISI rating Piping connected to pump without any load Tolerance: Centerline height: DIN747 Dimension error: DIN78 Castings: DIN86 GTB18 CPS To CPS Connection Dimensions: 1M Pressure Gauge: G1/2 5D Vent : G1/2 6B Drain : G1/2 8B Leakage Vent : G3/4 Key & keyway: up to DIN 6885 Table 1 Shaft Dia. Tolerance h6: up to DIN 7155