Materials: Parts of the pump in contact with the liquid are manufactured from the following standard

Transcription

1 Plastic Centrifugal Pump For Chemical Process DIN EN (ISO 2858)Standard

2 DESCRIPTION pumps are manufactured to DIN EN (ISO 2858) standards in respect of design, performance and dimensions. They complement the performance range of the in respect of increase capacities and heads. Parts in contact with the liquid are made of material with proven chemical resistance. Design Features: 1 Maximum safety during operation through use of solid plastic construction. 2 A sturdy armour in ductile cast iron GGG 40 covering the entire pump casing is to absorb all external forces and torques. It reduces sound emission and provides increased protection from explosion inside the pump and therefore more safety for operational staff. 3 Minimum axial thrust and large axial clearances enable clean and dirty liquids to be handled without increased erosive wear. 4 Back pull-out design allows easy accessibility to all parts for maintenance purposes. 5 Operationally safe shaft sealing by using internal single mechanical seal or single external mechanical seal or double mechanical seal. For extreme applications we use single or double mechanical shaft seals which are giving excellent service in flue gas desulphurization plants 6 Metallic parts, eg., bearing housing, armour etc. protected to "chemical works finish" by using corrosion proof epoxy resin based paint. Materials: Parts of the pump in contact with the liquid are manufactured from the following standard plastics: Polypropylene PP Temperature range form 0 Cto+100 C High Molecular Polyethylene PE 1000 Temperature range from -50 Cto+80 C Polyvinylidene Fluoride PVDF Temperature range from -20 Cto+130 C These materials have been selected as a result of many years of experience in the use of chemical engineering materials, to satisfy the special demands made in pump construction

3 Section Drawing (.1) Part-No (.1) (.1) (.1) (.1) (.1) (.1) Designation Volute casing Frame casing Washer Stud Hexagon nut Support Shaft Key Impeller Gasket Axial ball bearing Bearing bracket Hexagon screw Hexagon nut Bearing cover Gasket Radial shaft sealing ring Distance washer Grease nipple Mechanical seal O -ring Seal ring Spring Rotating ring Distance ring Shaft seal housing O -ring Seal insert O -ring Washer Cyl. screw

4 Section Drawing of Mechanical Seal Arrangement Design Design Design Design Design Design Part-No (.1) (.1,.2) (.1,.2) (.1) (.1) Designation Mechanical seal cover Cover insert O -ring Shaft seal ring Ring Seal ring O -ring Counter ring O -ring Carrier Gasket Spring Distance ring Gasket Retaining ring Centring ring Washer Hexagon screw Hexagon nut Sleeve Shaft sleeve O -ring Covering Sole plate Washer Hexagon screw Stud Hexagon nut Plug Gasket 3

5 General Curve Performance Quantity Q (US. GPM) Differential Head in m 1) Differential Head in ft Quantity Q (m 3 /h) 1) Additional data: see leaflet Quantity Q (US. GPM) Differential Head in m 1) Differential Head in ft Quantity Q (m 3 /h) 4

6 Performance Table A 5

7 A A 6

8 A A 7

9 A A 8

10 B A B 9

11 A B A B 10

12 A B

13 12

14 13

15 14

16 15

17 16

18 17

19 l Dimension Drawing View X * discharge flange *Size , l a f y z Suction flange c h 1 d h 2 z DN D k b DN S k m 2 s 2 s 1 m 1 w X n 2 n 1 Type Size BB Pump Dimensions Foot Dimensions Shaft End Flange Dimensions 1) DIN 748 2) Discharge Flange Suction Flange a f h1 h2 b m1 m2 n1 n2 s1 s2 w y d c DND k l z DNS k l z I M 12 M M M I M 12 M M M I M 12 M M M I M 12 M M M II M 12 M M M II M 12 M M M II M 12 M M M II M 16 M M M II M 12 M M M II M 16 M M M III M 16 M M M III M 16 M M M III M 16 M M M III M 20 M M M III M 20 M M M IV M 20 M M M IV M 20 M M M IV M 20 M M M VI M 24 M M M VI M 24 M M M Fully armoured design available up to pump size Dimensions subject to change without notice 1) BB = Bearing bracket 2) Keyway and ke to DIN