Flowserve Torex butterfly valves Manual de usuario descargar pdf

Fi 41.42(4)GB

08.01

NAF-Torex butterﬂy valves

Maintenance and installation instructions

List of spare parts

Contents

SAFETY

General 1

Lifting 2

Receiving inspection 3

Installation 4

Flange gaskets 5

Starting up 6

List of materials and spare parts 7

Ordering of spare parts 8

Maintenance 9

To remove the valve from the pipework 9.1

To change an Inconel seat ring 9.2

To replace EPDM, FPM and PTFE seat rings 9.3

To replace PTFE seat rings 9.4

To adjust a new seat ring in a valve with

manual operating lever or worm gear unit 9.5

To adjust the seat ring in a valve with

pneumatic actuator 9.6

To change the upper shaft seal of O-ring type 9.7

To inspect and replace the upper shaft seal

of graphite type 9.8

To change the packing, item no. 9 9.9

To replace the shafts and valve disc 10

Fitting the actuator to the valve 11

SAFETY

- Assess all the risks to eliminate the risk of personal

injury and material damage. Read these instructions

thoroughly!

- Always use the necessary protective equipment

and comply with applicable safety directives when

working with hazardous or hot/cold medium.

- Never operate a valve without ﬁrst ensuring that there

is no risk of crush injuries. The risk is highest with

automatic valves.

- Take necessary safety precautions to prevent

unintentional manoeuvre - i.e to atmosphere.

- Never dismantle a valve or part of a valve without

ensuring that the line is free of pressure and any

content.

- Always check that the valve type and material is

suitable for its intended use. This applies especially to

highly oxidising and corrosive medium. Observe also

the risk of erosion and explosion as well as decaying

medium. If in doubt, always request a written

recommendation from NAF AB.

1. General

The instructions and list of spare parts in the

succeeding apply to NAF-Torex butterﬂy valves in

accordance with catalogue sheet Fk 41.42GB.

The product codes of NAF-Torex valves are as follows:

238ZBB - XXXX

- 05

238Z

BB - XXXX

- 06

238ZBB - XXXX

- 07 238Z

BB - XXXX

- 17

238Z

BB - XXXX

- 55 238Z

BB - XXXX

- 66

238Z

BB - XXXX

- 85 238Z

BB - XXXX

- 86

238Z

BB - XXXX

- 88

Z = Pressure class

XXXX = Size

05 — 88 = Sealing type

2. Lifting

All lifting must be carried out on the valve itself and not

on the actuator.

3. Receiving inspection

All valves leaving our works are inspected and tested in

accordance with the relevant requirements or in accordan-

ce with the special provisions speciﬁed by the purchaser.

Valves equipped with actuators are subjected to

functional testing and are adjusted in such a manner that

every unit is completely ready for direct installation in the

pipework.

However, in view of damage that may have occurred

during transport, it is advisable that receiving inspection

be carried out as follows

- Check that the valve delivered is correct in terms of

type, size, equipment, etc.

- Examine the valve, actuator and valve positioner

regarding possible damages.

- Operate the valve to the limits of its travel to

check the settings of the limit stops.

1 2 3 4 5 6 7 8

Indice de contenidos

Pagina 1 - NAF-Torex butterﬂy valves

1Fi 41.42(4)GB08.01NAF-Torex butterﬂy valvesMaintenance and installation instructionsList of spare partsContents SAFETYGeneral 1Lif

Pagina 2 - 6. Starting up

24. InstallationBefore installing the valve, ensure that the pipework is free from impurities, that the pipe ends between which the valve is to be i

Pagina 3 - Safeguard 0B, 8B

3262737 -07, -17Zebra-CL™ 0A, 8ASafeguard 0B, 8B29292323242522282820182018Fig 3. NAF-Torex - spareparts, shaft sealing and seatring types Se

Pagina 4 - 9. Maintenance

42. Remove the bolts, retainer ring (6), gasket (8) and seat ring (10). Use the two tapped holes (M6) in the retainer ring to remove the ring

Pagina 5

59.4 To replace PTFE seat rings.1-4 See the corresponding items in section 9.2.5. Carefully clean the groove in the body into which the seat r

Pagina 6 - valve disc

65. Carefully examine the shaft surface to make sure that it is completely free from scratches. Remove any burrs from the keyways.6. Fit two

Pagina 7

75. Adjust the end position stop until the actuator has turned the valve disc to the sealing position. This sealing position varies from valve

Pagina 8 - ISO 9001 Certiﬁed

8 NAF AB SE-581 87 Linköping Telephone: +46 13 31 61 00 Fax +46 13 13 60 54 e-mail [email protected]: www.naf.s

Comentarios a estos manuales

Sin comentarios

Flowserve Torex butterfly valves Manual de usuario

Busca en linea o descarga Manual de usuario para Hardware Flowserve Torex butterfly valves. Flowserve Torex butterfly valves User Manual Manual de usuario

Indice de contenidos

Comentarios a estos manuales

Relacionado con productos y manuales para Hardware Flowserve Torex butterfly valves