Desmi B114N Guida alla risoluzione dei problemi

_______________________________________________________________________________

___

DESMI Pumping Technology A/S

Tagholm 1

9400 Nørresundby –Denmark

Tel: +45 96 32 81 11 Fax: +45 98 17 54 99

E-mail: [email protected]

www.desmi.com

OPERATION AND MAINTENANCE INSTRUCTIONS

DESMI priming pump B114N

DESMI Pumping Technology A/S

Tagholm 1 –DK-9400 Nørresundby –Denmark

Tel.:

+45 96 32 81 11

Fax:

+45 98 17 54 99

E-mail:

[email protected]

Internet:

www.desmi.com

Manual:

T1488

Language:

English

Revision:

C (11/2015)

Special pump no. .................

_______________________________________________________________________________

___

DESMI Pumping Technology A/S

Tagholm 1

9400 Nørresundby –Denmark

Tel: +45 96 32 81 11 Fax: +45 98 17 54 99

E-mail: [email protected]

www.desmi.com

Table of Contents:

1. PRODUCT DESCRIPTION............................................................................................................ 3

1.1 DELIVERY........................................................................................................................................ 3

2. TECHNICAL DATA ..................................................................................................................... 3

2.1 EXPLANATION OF THE NAME PLATE .............................................................................................. 3

2.2 TECHNICAL DESCRIPTION .............................................................................................................. 3

3. INSTALLATION.......................................................................................................................... 4

3.1 WIRING .......................................................................................................................................... 4

4. TRANSPORT/STORAGE ............................................................................................................. 4

5. DISMANTLING.......................................................................................................................... 4

5.1 ACCESS TO IMPELLER ..................................................................................................................... 4

5.2 SHAFT SEAL .................................................................................................................................... 4

5.3 INSPECTION ................................................................................................................................... 5

6. ASSEMBLING............................................................................................................................ 5

6.1 FITTING SHAFT AND SHAFT SEAL ................................................................................................... 5

6.2 FITTING IMPELLER.......................................................................................................................... 5

6.3 SHAFT............................................................................................................................................. 5

7. FROST PROTECTION.................................................................................................................. 5

8. DISMANTLING.......................................................................................................................... 6

9. START-UP................................................................................................................................. 6

9.1 STARTING....................................................................................................................................... 6

10. INSPECTION AND MAINTENANCE............................................................................................ 7

11. REPAIRS ................................................................................................................................. 7

11.1 ORDERING SPARE PARTS ............................................................................................................. 7

12. OPERATING DATA................................................................................................................... 7

13. EU DECLARATION OF CONFORMITY ........................................................................................ 8

14. ASSEMBLY DRAWING B114N .................................................................................................. 9

14.1 SPARE PARTS LIST B114N ............................................................................................................. 9

15. DIMENSIONAL SKETCH ......................................................................................................... 10

______________________________________________________________________________

DESMI Pumping Technology A/S 3

Tagholm 1

9400 Nørresundby –Denmark

Tel: +45 96 32 81 11 Fax: +45 98 17 54 99

E-mail: [email protected]

www.desmi.com

1. PRODUCT DESCRIPTION

These maintenance and operation instructions apply to the DESMI priming pumps B114N.

The pumps have 1/2" connections on suction and pressure side. B114N is a vacuum pump of

the water ring type, with mechanical shaft seal, bronze shaft, impeller and pump casing.

For special applications the pump can be delivered in other material combinations –e.g. with

stainless steel shaft and ductile cast iron impeller and pump casing.

Max. temperature for standard design is 80°C.

The pumped liquid serves as lubricant for the pumps and therefore, they do not have to be

lubricated further.

Max. pump speed is 3600 RPM. The pump is driven by an electric motor, which may be a

standard AC motor, or a DC motor.

1.1 DELIVERY

-Check on receipt that the delivery is complete and undamaged.

-Defects and damages, if any, to be reported to the carrier and the supplier immediately

in order that a claim can be advanced.

2. TECHNICAL DATA

2.1 EXPLANATION OF THE NAME PLATE

The pumps are equipped with a name plate indicating pump type, production week, production

year, item list number if the pump has been sold alone, or an order number, if the pump has

been sold when built together with another machine.

Before putting a pump into operation, the suitability of the material combination of the pump

must always be taken into consideration. In case of doubt, contact the supplier.

If the pumps are intended for special purposes the following is to be indicated:

Pump No. : _________________________________________________

Pump type : _________________________________________________

Application : _________________________________________________

Comment : _________________________________________________

2.2 TECHNICAL DESCRIPTION

The noise level indicated is the airborne noise including the motor. The noise depends on the

motor type supplied, as the noise from the pump can be calculated as the noise level of the

motor + 2dB(A). This noise level applies to pumps with electric motors.

The permissible loads on the flanges on suction and pressure side are stated in the table

below:

Pump

Fv(N)

Fh (N)



F(N)



Mt (Nm)

B114N

500

400

640

Fv : The max. permissible sum of the vertical forces on the two connections.

______________________________________________________________________________

DESMI Pumping Technology A/S 4

Tagholm 1

9400 Nørresundby –Denmark

Tel: +45 96 32 81 11 Fax: +45 98 17 54 99

E-mail: [email protected]

www.desmi.com

Fh : The max. permissible sum of the horizontal forces on the two connections.



F : The vectorial sum of the two forces Fv and Fh.



Mt : The max. permissible sum of torques on the two connections.

In connection with the permissible loads on the connections stated in the above table the

following is to be observed:

































calcM

calcF

where index "calc" is the values calculated by the user.

3. INSTALLATION

The max. permissible loads on the connections stated in paragraph 2.2 must be observed.

At installations pumping hot or very cold liquids the operator must be aware

that it is dangerous to touch the pump surface and he is to take the necessary

safety measures.

3.1 WIRING

Wiring to be carried out by authorized skilled workmen according to the rules

and regulations in force.

4. TRANSPORT/STORAGE

The weight, including DESMI motor, is indicated in the table below:

Type

Weight in kg

B114N/50 Hz

B114N/60 Hz

The pump is to be stored in a dry area.

5. DISMANTLING

The numbers in brackets refer to the position numbers on the assembly drawing.

5.1 ACCESS TO IMPELLER

Remove Allen screws (12) and dismantle the end cover (3). Remove the pointed screw (7).

The impeller (1) can now be pulled off and inspected.

5.2 SHAFT SEAL

Remove key (11) from the shaft (4). Remove the copper pipes (16) and (27) connected to the

pump casing. Remove set screws (14) and pull the pump casing free of the shaft (4) and the

electric motor and the shaft seal is pulled off the shaft. Press the seat out from behind the

pump casing.

______________________________________________________________________________

DESMI Pumping Technology A/S 5

Tagholm 1

9400 Nørresundby –Denmark

Tel: +45 96 32 81 11 Fax: +45 98 17 54 99

E-mail: [email protected]

www.desmi.com

5.3 INSPECTION

After dismantling as described in 5.1, inspect the impeller, end cover and pump casing.

Replace the parts, if wear or corrosion is established in areas to such an extent that the priming

ability of the pump is considerably deteriorated, or the pump makes more noise than usual.

Check the seat in the shaft seal for flatness and cracks. Check rubber parts for elasticity.

6. ASSEMBLING

6.1 FITTING SHAFT AND SHAFT SEAL

Fit the shaft (4) on the motor shaft. The motor shaft must entirely bottom the hole in the shaft

(4). Fit and tighten the pointed screws (6) (first the middle screw). Check that the wobble of

the shaft, measured as far as possible from the motor, does not exceed 0.07 mm (70 m).

Fit the sealing washer (9) in the pump casing. Fit the pump casing on the motor with screws

and washers (14).

Please note which type of rubber is used in the shaft seal bellows. As standard the material

is nitrile, but it might be EPDM which will be damaged by mineral grease. Use soft soap or

silicone grease for EPDM. Before fitting the seat, clean the recess in the cover. Dip the outer

rubber ring of the seat in soapy water or grease it with silicone. Now press the seat into

place with the fingers and check that all parts are correctly imbedded. If it is necessary to

use fitting tools, then protect the sliding surface of the seat to prevent it from being scratched

or cut. Lubricate the inner diameter of the rubber bellows on the slide ring with soapy water

and push it over the shaft.

Push the slide ring over the shaft with the hand. If the rubber bellows is tight, use a fitting

tool and take care that the slide ring is not damaged. If the carbon ring is not fixed, it is

important to check that it is fitted correctly, i.e. the chamfered/lapped side is to face the seat.

The carbon ring can be held by a little grease. When using soapy water on the shaft, the

bellows will settle and seat in about 15 minutes and until then tightness should not be

expected. After start, check by viewing the leak hole that there are no leaks.

6.2 FITTING IMPELLER

Fit the key (11) in the shaft and lead the impeller over the shaft. Use an air gap gauge to place

the impeller 0.05 mm from the pump casing when tightening the pointed screw (7). Fit the end

cover and O-ring (13) with Allen screws (12). Fit the copper pipes (16) and (27) connected to

the pump casing.

6.3 SHAFT

When the pump has been assembled, check that the shaft rotates freely and without noise.

7. FROST PROTECTION

Pumps which are not in operation during frost periods are to be drained to avoid frost damage.

Alternatively, it is possible to use anti-freeze liquids in normal constructions.

______________________________________________________________________________

DESMI Pumping Technology A/S 6

Tagholm 1

9400 Nørresundby –Denmark

Tel: +45 96 32 81 11 Fax: +45 98 17 54 99

E-mail: [email protected]

www.desmi.com

8. DISMANTLING

Before dismantling the pump make sure that it has stopped. Empty the pump

of liquid before it is dismantled from the piping system. If the pump has been

pumping dangerous liquids you are to be aware of this and take the necessary

safety measures.

If the pump has been pumping hot liquids, take great care that it is drained

before it is removed from the piping system.

9. START-UP

The pump will not function until the feed water tank has been filled with liquid.

The liquid also serves as coolant for the shaft seal. In order to protect the shaft

seal the pump must not run dry.

9.1 STARTING

Before starting the pump check that

-the shaft rotates freely without jarring sounds.

-the feed water tank is filled with liquid.

Start the pump for a moment to check the direction of rotation. If the direction is correct (i.e. in

the direction of the arrow), the pump may be started. Should the pump not function as

intended, please proceed according to the fault-finding list. Bear in mind, though, that the

pump was carefully checked and tested at the factory and that the majority of faults stem from

the piping system.

FAULT

CAUSE

REMEDY

The priming pump has no

or too low capacity

1. Wrong direction of rotation

2. Piping system choked

3. The pump is choked

4. Suction line leaks

5. Suction lift too high

6. No water in the feed water

tank

7. The pump is unable to

discharge air into the

delivery piping.

Change direction of rotation

to the direction of the arrow

Clean or replace

Clean the pump. Check the

copper pipe between feed

water tank and pump, and all

fittings on the pump

Find the leakage, repair the

fault. Note: a pressure-tight

piping system is not

necessarily vacuum-tight.

Check data sheet Q/H or

contact DESMI

Fill the feed water tank

with water

The piping system must be

designed so that air can

easily escape. A vertical pipe

filled with water reduces the

airflow considerably.

______________________________________________________________________________

DESMI Pumping Technology A/S 7

Tagholm 1

9400 Nørresundby –Denmark

Tel: +45 96 32 81 11 Fax: +45 98 17 54 99

E-mail: [email protected]

www.desmi.com

FAULT

CAUSE

REMEDY

The priming pump uses

too much power

1. Foreign body in pump

2. Electric motor is running on

2 phases

Dismantle the pump, remove

the cause

Check fuses, cable

connection and cable

10. INSPECTION AND MAINTENANCE

Inspect the shaft seal in B114N for leaks at regular intervals.

-Before any inspection of a pump without guard check that the unit cannot be started

unintentionally.

-The system is to be without pressure and drained of liquid.

-The repairman must be familiar with the type of liquid which has been pumped as well

as the safety measures he is to take when handling the liquid.

11. REPAIRS

11.1 ORDERING SPARE PARTS

When ordering spare parts please always state pump type and pump No. (indicated on the

name plate of the pump). See also spare parts drawing with item No´s and part names. See

assembly drawing.

12. OPERATING DATA

The powers indicated in the table below constitute the max. power consumption of the pump.

The following working pressures are allowed:

TYPE

PRESSURE

bar

Power

B114N

2,6

______________________________________________________________________________

DESMI Pumping Technology A/S 8

Tagholm 1

9400 Nørresundby –Denmark

Tel: +45 96 32 81 11 Fax: +45 98 17 54 99

E-mail: [email protected]

www.desmi.com

13. EU DECLARATION OF CONFORMITY

DESMI Pumping Technology A/S, hereby declare that our pumps of the type B114N are

manufactured in conformity with the following essential safety and health requirements in the

COUNCIL DIRECTIVE 2006/42/EC on machines, Annex 1.

The following harmonized standards have been used:

EN/ISO 13857:2008

Safety of machinery. Safety distances to prevent danger

zones being reached by the upper limbs

EN 809 + A1

Pumps and pump units for liquids –Common safety

requirements

EN/ISO12162+A1:2009

Liquid pumps –Safety requirements –Procedure for

hydrostatic testing

EN 60204-1:2006

Safety of machinery –Electrical equipment of machines (item

4, General requirements)

Pumps delivered by us connected with prime movers are CE-marked and comply with the

above requirements.

Pumps delivered by us without prime movers (as partly completed machinery) must only be

used when the prime mover and the connection between prime mover and pump comply with

the above requirements.

Nørresundby, November 12, 2015

Claus Dietz Hansen

Technical Director

DESMI A/S

Tagholm 1, 9400 Nørresundby

______________________________________________________________________________

DESMI Pumping Technology A/S 9

Tagholm 1

9400 Nørresundby –Denmark

Tel: +45 96 32 81 11 Fax: +45 98 17 54 99

E-mail: [email protected]

www.desmi.com

14. ASSEMBLY DRAWING B114N

14.1 SPARE PARTS LIST B114N

1 Impeller 14 Set screw/washer 27 Copper pipe

2 Pump casing 15 Angle nipple 28 Angle nipple

3 End cover 16 Copper pipe 29 Fitting

4 Shaft 17 Hexagon nipple 30 Magnetic valve *

5 Shaft seal 18 Bushing 31 Pressure switch

6 Pointed screw 19 Filter 32 Muff

7 Pointed screw 20 Hexagon nipple 33 Nipple

8 Feed water tank 21 Non-return valve 34 Muff-tee

9 Sealing washer 22 Pipe clamp 35 Motor

10 Pipe plug 23 Muff-tee

11 Key 24 Hexagon nipple

12 Allen screw 25 Red. nozzle

13 O-ring 26 Hexagon nipple

*) OPTION

______________________________________________________________________________

DESMI Pumping Technology A/S 10

Tagholm 1

9400 Nørresundby –Denmark

Tel: +45 96 32 81 11 Fax: +45 98 17 54 99

E-mail: [email protected]

www.desmi.com

15. DIMENSIONAL SKETCH

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