Volute Pumpsfor heat carrier oils up to 350 °C

ZTK 32-160 . . . 80-160

PUMPTECHNOLOGY ZTK P I/45133.65851.55.01 E 05/96

TECHNICAL DATA

Output: max. 200 m³/h

Delivery head: max. 60 m

Speed: max. 3600 rpm

Temperature: max. 350 °C

Casing pressure: PN 16

Shaft sealing: mechanical seal,radial shaft seal ring

Flange connections: DIN 2501 PN 16

Sence of rotation: clockwise, when seen fromdrive on the pump

APPLICATION

When developing the unit construction type volute pumps of seriesZTK, the main objective has been to turn out a number of floor spacesaving, easy-installation types especially adapted to the circulation ofmineral and synthetic heat carriers in

primarysecondary andtertiary

circuits.

Besides these units can advantageously be used as main circulatingpumps in heat exchangers of

compact design

where they, owing to their constructional features, offer brand-newpossibilities to the plant manufacturer for the layout of a system.

DESIGN

Single-stage pumping units of compact design. Nominalperformances and flange connection sizes according to DIN 24255 /EN 733.

There is no common shaft for motor and pump, the motors used areof the standard type listed.

Owing to the process design, it is possible to withdraw the wholeinsert assembly without removing the casing of the pump from thepiping system.

The individual shafts of the unit connected by a plug-in couplingfacilitate the dismantling or replacement of the motor without affectingthe pump.

The DIN 4754 specifications are complied with.

At present, the programme comprises 9 pump sizes.

CONSTRUCTION

Casing pressure:

Max. 16 bar from 0 °C to 120 °CMax. 13 bar from 120 °C to 300 °CMax. 10 bar from 300 °C to 350 °CIntermediate values can be interpolatedPlease note:Technical rules and safety regulations.Casing pressure = inlet pressure + zero delivery headPermissible inlet pressure (system pressure) 5 barPermissible inlet pressure = permissible casing pressure at shaftsealing CDC

Position of branches:

Suction orifice axial; discharge orifice showing radially upwards.

Flanges:

The flanges correspond to DIN 2533/PN 16. Flange designdrilled as per ANSI 150 is possible.

Hydraulic:

Code of this construction: A. resp. C.

Bearing:

A groove ball bearing acc. to DIN 625, grease lubricated forservice life, a liquid surrounded step bearing in the pump. Codeof this construction: .A

Sense of rotation:

Clockwise when seen from drive on the pump.

Shaft sealing:

Code 002: several radial shaft seal rings arranged in se-ries, uncooledtemperature range: 0 °C to 350 °C

Code CDC: unbalanced mechanical sealtemperature range: 0 °C to 350 °C

2

Material design:

Item COMPONENT PARTS MATERIAL DESIGN 1B

10.20 volute casingGGG 40.3

16.10 casing cover

21.00 shaft X 20 Cr 13

23.00 impellerGG 25

34.00 bearing bracket

42.13 shaft seal

radial shaft seal ring 002 viton

43.30 mechanical seal CDC chrome cast / carbon

44.10, 44.11 casing shaft seal CK 45

54.51 bush carbon

Casing seal:

The casing is sealed by a flat type seal of special paper. Code of this construction: 2

Drive / Speed:

By commercial electric motors, type IM B 5 resp. IM V 1 to 7,5 kW and IM B 35 resp. IM V 15 above 11 kW for three-phase A.C.

Because of the admissible shaft load for higher temperatures, the following maximum speed must be observed:

pump size 80-160 - n = 3000 rpm

all other pump sizes - n = 3600 rpm

Mounting position:

The ZTK units can be mounted either in horizontal or in vertical position. Provided the sturdiness of the piping system is sufficient, the pumps candirectly be suspended in a pipeline.

Horizontal installation Vertical installationPlease note:The installation of the motor below the pump is, for reasons of operating safety, not allowed.The installation of compensators is not necessary. Saving of costs!

General comments:

For the equipment of heat carrier plants, a complete programme is available for a flow range between 1 - 1000 m³/h including the following additionalseries:Series ZTN standard heat carrier pump; dimensions and nominal performances acc. to DIN 24255/EN 733, additionally pump sizes

exceeding the standardSeries ZTK close coupled construction, magnetic coupling up to 400 °CSeries AEH self-priming side channel pump of smaller circulating capacity for filling and drainage

Technical documentation regarding these programmes will readily be supplied on request.

3

Sectional drawing and Nomenclature

Heat blocking / shaft sealing / bearing

Heat transfer plants have reached a high state of technicaldevelopment. Therefore pumps handling heat carriers are facing, withregard to safety of operation, environmental neutrality, maintenancefacility, and operating costs, much severer require-ments now than informer times. The type ZTK based on many years of experience and onthe most up-to-date know-how, fully complies with these requirements.By the heat blocking, behind the cover, with integrate throttlingclearance a favourable temperature lowering towards the drive end isreached (see drawing on the left). Heat losses of the product handledare effectively prevented (energy saving). The temperature loweringmakes possible the safe use of a single, uncooled type of shaft sealing.As the lubricating qualities of heat carrier oils are not very good forantifriction bearings, at impeller side a liquid surrounded step bearing isinstalled. The external anti-friction bearing in the bearing bracket is notin contact with the heat carrier and causes no problems. Noiselessoperation and long durability are attained.

Pumping unit / bearing bracket-plug coupling / standard motor* / space requirements

By completion of the pumping unit, consisting of volute casing, casing cover, impeller and mechanical seal, with a special bearing brack-et, oneobtains an closed coupled pump which is easy to combine. The bearing bracket relieves the standard motor from hydraulic axial forces and allowssuitable motor combinations at the complete mounted pumping unit.Even with these possibilities of combination one has a place saving of about 25-30% compared with the pumps mounted on base plates.

*shaft end as per DIN 748 T 3 key as per DIN 6885 T 1 flanges as per DIN 42677

In case of necessity the motor can be changed in the unit without draining the pipe work. The pump unit remains as „shaft tight armature“ in thepipe work and so the readiness for operation in increased.

10.20 volute casing 42.13 radial shaft seal ring16.10 casing cover 43.30 mechanical seal21.00 shaft 44.10, 44.11 casing shaft seal23.00 impeller 54.51 bush34.00 bearing bracket

Shaft sealing Shaft sealingCode CDC Code 002

Motor combination

+ type IM B 3/B 5 or IM V 1/V 5

+ protection type IP up to e II (Ex)

+ speed 50 and 60 cycle

= motor at your choice

+ shaft sealing pumping unit

= readiness for operation

4

Performance graph n = 2900 rpm

Performance graph n = 1450 rpm

5

Characteristic curves n = 2900 rpm

6

Characteristic curves n = 2900 rpm

7

Characteristic curves n = 2900 rpm

Characteristic curves n = 1450 rpm

8

Characteristic curves n = 1450 rpm

9

Characteristic curves n = 1450 rpm

values are valid for water ρ = 1kg/l

10

Dimension table n = 2900 rpm

UAL = connection for leakage liquid G ¼

selected drive power kW pumpsize

n = 2900 rpm DNA

DNE

a b f h1

h2

m1

m2

n1

n2

x ca. kg

32-160 0,75 1,1 1,5 2,2 3,0 327 132 160 5132-200 2,2 3,0 4,0 32 50 80 160 180 240 190 50

5,5 7,5 352 5740-160 1,1 1,5 2,2 3,0 4,0 327 132 160 4940-200 2,2 3,0 4,0 40 50 100 70 54

5,5 7,5 65 352 180 80 6050-160 2,2 3,0 4,0 327 265 59

5,5 7,5 50 352 160 212 6450-200 5,5 7,5 100 60

11 377 200 6765-160 5,5 7,5 352 280 64

11 15 65 80 65 125 95 6865-200 11 15 18,5 22 377 180 225 320 250 100 7280-160 11 15 18,5 80 100 125 74

motorsize kW b1* c1* D1 g* h m* m3* m4* m5 n3* n4 01* o2* s w* kg

80 a 0,75 160 80 30 50 125 156 125 227 96 143 980 b 1,1 35 10 200 100 104 9 1090 S 1,5 178 90 32 56 130 170 140 243 89 150 1490 L 2,2 155 125 268 18

100 L1 3,0 40 12 250 198 100 40 63 175 197 160 305 90 11,5 188 24112 M 4,0 43 15 222 112 43 70 140 225 190 319 140 187 41132 S1 5,5 48 17 300 261 132 48 89 180 256 216 362 159 12 221 56132 S2 7,5 59160 M1 11,0 255 210 521 213 110160 M2 15,0. 60 25 350 310 160 70 108 310 254 15 245 112160 L 18,5 300 254 565 235 135180 M 22,0 70 28 341 180 80 121 241 345 279 592 242 278 155

Standard motor DIN 42677.Truth of rotation, centricity and right angle of shaft ends andmounting flange to DIN 42955, normal precision.* Motors protection type IP 54, dimensions depend on the motor make.

Flange connection sizes according to DIN 2501 PN 16

DNA/DNE 32 40 50 65 80 100D 140 150 165 185 200 220k 100 110 125 145 160 180

d2 x number 18x4 18x4 18x4 18x4 18x8 18x8

Air ventilation screw

11

Dimension table n = 1450 rpm

UAL = connection for leakage liquid G ¼

selected drive power kW pumpsize

n = 1450 rpm DNA

DNE

a b f h1

h2

m1

m2

n1

n2

x abt. kg

32-160 0,55 32 50 132 160 51

32-200 0,55 0,75 1,1 80 160 180 240 190 50

40-160 0,55 0,75 40 327 132 160 49

40-200 0,55 0,75 1,1 50 180 100 70

50-160 0,55 0,75 1,1 65 265 80 54

50-200 0,75 1,1 50 160 212

1,5 2,2 100 377 200

65-160 0,75 1,1 1,5 2,2 327 280 55

1,5 2,2 65 80 65 377 125 95

65-200 0,75 1,1 1,5 2,2 327 180 225 320 250 100 58

80-160 1,1 1,5 2,2 3,0 80 100 125 61

motorsize kW b1* c1* D1 g* h m* m3* m4* m5 n3* n4 01* o2* s w* kg

80 a 0,55 160 80 30 50 125 156 125 227 96 143 9

80 b 0,75 35 10 200 100 104 9 10

90 S 1,1 178 90 32 56 130 170 140 243 89 150 14

90 L 1,5 155 125 268 18

100 L1 2,2 40 12 250 198 100 40 63 175 140 197 160 305 90 11,5 188 24

100 L2 3,0 25

Standard motor DIN 42677.Truth of rotation, centricity and right angle of shaft ends andmounting flange to DIN 42955, normal precision.* Motors protection type IP 54, dimensions depend on the motor make.

.

Flange connection sizes according to DIN 2501 PN 16

DNA/DNE 32 40 50 65 80 100D 140 150 165 185 200 220k 100 110 125 145 160 180

d2 x number 18x4 18x4 18x4 18x4 18x8 18x8

Air ventilation screw

12

Data regarding the pump size - Instructions for placing orders

series + size hydraulic + bearing shaft sealing material design casing seal

A. hydraulic A

C. hydraulic C

.A one grease-lubricated groove ball bearing and one liquid surrounded step bearing

002 radial shaft seal rings

CDC unbalanced mechanical seal 1B main parts of spheroidal graphite iron

2 flat seal

32-160

32-200AA

40-160

40-200 alternatively

ZTK 50-160 CA 002 1B 2

50-200 CDC

65-160 AA

65-200

80-160

Possible motor combinations please take from the dimension table on page 10 to 11.

Motor selection table

motor n = 2900 rpm motor n = 1450 rpm

kW size code kW size code

0,75 80 a FA1,1 80 b GA 0,55 80 a FB1,5 90 S HA 0,75 80 b GB2,2 90 L JA 1,1 90 S HB3,0 100 L KA 1,5 90 L JB4,0 112 M MA 2,2 100 L1 KB

5,5 132 S1 NA 3,0 100 L2 LB7,5 132 S2 OA11 160 M1 SA15 160 M2 TA

18,5 160 L UA22 180 M VA

Example for ordering:The pump size ZTK 40-160 AA CDC 1B 2 with 4,0 kW 3-phase a.c. motor of (50 cs, 380 V∆) 2900 rpm

has the complete order No.: ZTK .40-160 AA CDC 1B 2 MA

On delivery, the point ( . ) in the fourth place of the type designation will be replaced by a letter in our works..

Any changes in the interest of the technical development are reserved.

S t e r l i n g S I H I G m b HLindenstraße 170, D-25524 Itzehoe, Germany, Telephone +49 (0) 48 21 / 7 71 - 01, Telefax +49 (0) 48 21 / 7 71-274