Spirax Sarco PF5 Series Manuel utilisateur

IM-P373-05 CTLS Issue 14 1

1. Safety information

2. General product information

3. Installation

4. Commissioning

5. Maintenance

6. Spare parts

Printed in GB

3730050/14

Type PF5 and PF6

Piston Actuated Valves

Installation and Maintenance Instructions

IM-P373- 05

CTLS Issue 14

IM-P373-05 CTLS Issue 14

Safe operation of these products can only be guaranteed if they are properly installed,

commissioned, used and maintained by qualified personnel (see Section 1.11) in compliance

with the operating instructions. General installation and safety instructions for pipeline and

plant construction, as well as the proper use of tools and safety equipment must also be

complied with.

1.1 Intended use

Referring to the Installation and Maintenance Instructions, name-plate and Technical Information

Sheet, check that the product is suitable for the intended use/application. The products listed below

comply with the requirements of the Pressure Equipment Directive (PED) and carry the mark

when so required. The products fall within the following Pressure Equipment Directive categories:

Product Group 1

Gases

Group 2

Gases

Group 1

Liquids

Group 2

Liquids

PF51G

DN15 - DN25 (PN25) SEP SEP SEP SEP

DN32 - DN40 (PN25) -SEP SEP SEP

DN50 (PN16) -SEP SEP SEP

PF6

DN15 - DN25 (PN40) SEP SEP SEP SEP

DN32 - DN40 (PN25) 1SEP SEP SEP

DN50 (PN16) 1SEP SEP SEP

i) The products have been specifically designed for use on steam, water, compressed air, inert

industrial gases and certain oils which are in Group 2 of the above mentioned Pressure Equipment

Directive. The PF5G and PF6G (DN15 - DN25 only) can also be used on propane or methane

gases which are in Group 1 of the above Pressure Equipment Directive. The products’ use on

other fluids may be possible but, if this is contemplated, Spirax Sarco should be contacted to

confirm the suitability of the product for the application being considered.

ii) Check material suitability, pressure and temperature and their maximum and minimum values.

If the maximum operating limits of the product are lower than those of the system in which it

is being fitted, or if malfunction of the product could result in a dangerous overpressure or

overtemperature occurrence, ensure a safety device is included in the system to prevent such

over-limit situations.

iii) Determine the correct installation situation and direction of fluid flow.

iv) Spirax Sarco products are not intended to withstand external stresses that may be induced

by any system to which they are fitted. It is the responsibility of the installer to consider these

stresses and take adequate precautions to minimise them.

v) Remove protection covers from all connections and protective film from all name-plates, where

appropriate, before installation on steam or other high temperature applications.

1. Safety information

IM-P373-05 CTLS Issue 14 3

1.2 Access

Ensure safe access and if necessary a safe working platform (suitably guarded) before attempting

to work on the product. Arrange suitable lifting gear if required.

1.3 Lighting

Ensure adequate lighting, particularly where detailed or intricate work is required.

1.4 Hazardous liquids or gases in the pipeline

Consider what is in the pipeline or what may have been in the pipeline at some previous time.

Consider: flammable materials, substances hazardous to health, extremes of temperature.

1.5 Hazardous environment around the product

Consider: explosion risk areas, lack of oxygen (e.g. tanks, pits), dangerous gases, extremes of

temperature, hot surfaces, fire hazard (e.g. during welding), excessive noise, moving machinery.

1.6 The system

Consider the effect on the complete system of the work proposed. Will any proposed action (e.g.

closing isolation valves, electrical isolation) put any other part of the system or any personnel at

risk?

Dangers might include isolation of vents or protective devices or the rendering ineffective of

controls or alarms. Ensure isolation valves are turned on and off in a gradual way to avoid system

shocks.

1.7 Pressure systems

Ensure that any pressure is isolated and safely vented to atmospheric pressure. Consider double

isolation (double block and bleed) and the locking or labelling of closed valves. Do not assume

that the system has depressurised even when the pressure gauge indicates zero.

1.8 Temperature

Allow time for temperature to normalise after isolation to avoid danger of burns.

1.9 Tools and consumables

Before starting work ensure that you have suitable tools and/or consumables available. Use only

genuine Spirax Sarco replacement parts.

1.10 Protective clothing

Consider whether you and/or others in the vicinity require any protective clothing to protect against

the hazards of, for example, chemicals, high/low temperature, radiation, noise, falling objects, and

dangers to eyes and face.

IM-P373-05 CTLS Issue 14

1.11 Permits to work

All work must be carried out or be supervised by a suitably competent person.

Installation and operating personnel should be trained in the correct use of the product according

to the Installation and Maintenance Instructions.

Where a formal 'permit to work' system is in force it must be complied with. Where there is no such

system, it is recommended that a responsible person should know what work is going on and,

where necessary, arrange to have an assistant whose primary responsibility is safety.

Post 'warning notices' if necessary.

1.12 Handling

Manual handling of large and/or heavy products may present a risk of injury. Lifting, pushing,

pulling, carrying or supporting a load by bodily force can cause injury particularly to the back.

You are advised to assess the risks taking into account the task, the individual, the load and the

working environment and use the appropriate handling method depending on the circumstances

of the work being done.

1.13 PTFE - Handling precautions

Within its working temperature range PTFE is a completely inert material, but when heated to its

sintering temperature it gives rise to a gaseous decomposition product or fumes which can produce

unpleasant effects if inhaled. The inhalation of these fumes is easily prevented by applying local

exhaust ventilation to atmosphere as near to their source as possible.

Smoking should be prohibited in workshops where PTFE is handled because tobacco contaminated

with PTFE will during burning give rise to polymer fumes. It is therefore important to avoid

contamination of clothing, especially the pockets, with PTFE and to maintain a reasonable standard

of personal cleanliness by washing hands and removing any PTFE particles lodged under the

fingernails.

1.14 Residual hazards

In normal use the external surface of the product may be very hot. If used at the maximum permitted

operating conditions the surface temperature of some products

may reach temperatures of 180 °C (356 °F).

Many products are not self-draining. Take due care when dismantling or removing the product from

an installation (refer to 'Maintenance instructions').

1.15 Freezing

Provision must be made to protect products which are not self-draining against frost damage in

environments where they may be exposed to temperatures below freezing point.

IM-P373-05 CTLS Issue 14 5

1.16 Disposal

Unless otherwise stated in the Installation and Maintenance Instructions, this product is recyclable

and no ecological hazard is anticipated with its disposal providing due care is taken. However, if

the valve is fitted with a FKM or PTFE seat, special care must be taken to avoid potential health

hazards associated with decomposition/burning of these seats.

FKM:

-Can be landfilled, when in compliance with National and Local regulations.

-Can be incinerated, but a scrubber must be used to remove Hydrogen Fluoride, which is evolved

from the product and with compliance to National and Local regulations.

-Is insoluable in aquatic media.

PTFE:

-Can only be disposed of by approved methods, not incineration.

-Keep PTFE waste in a separate container, do not mix it with other rubbish, and consign it to

a landfill site.

1.17 Returning products

Customers and stockists are reminded that under EC Health, Safety and Environment Law, when

returning products to Spirax Sarco they must provide information on any hazards and the precautions

to be taken due to contamination residues or mechanical damage which may present a health,

safety or environmental risk. This information must be provided in writing including Health and

Safety data sheets relating to any substances identified as hazardous or potentially hazardous.

IM-P373-05 CTLS Issue 14

2.1 Description

PF51G

A 2-port pneumatically actuated on/off valve for use on water, air, oil, and gases and can also be used on

lower specification steam applications. Note: These valves are not suitable for vacuum conditions.

PF6_G

A 2-port pneumatically actuated on/off valve for use on steam, water, air, oil and gases.

PF51G and PF6_G operation

A pneumatic signal acts on the actuator piston (depending upon seat position top or bottom) to open or close

the valve. The valve plugs have a PTFE soft seal to provide tight shut-off. A position indicator is included on

standard and flow regulator models.

Body

Bonnet

Fig. 1 2-port pneumatically actuated on/off valve

Air signal connection

2. General product information

IM-P373-05 CTLS Issue 14 7

2.2 Technical details

Leakage PTFE soft seal ASME Class VI

Flow characteristic Fast opening On/off

Flow direction

NC - Normally closed Flow over seat Port 1 to 2

NO - Normally open Flow under seat Port 2 to 1

BD - Bi-directional

Flow over seat Port 1 to 2

Flow under seat Port 2 to 1

Pilot media Instrument air or inert gases -

For use with other flow media contact Spirax Sarco 60 °C (140 °F) maximum

Actuator rotation 360°

Actuator type

and size

Pilot

connection

Maximum pilot pressure

NC & BD NO

Type 1 = 45 mm (1¾") diameter 1/8" BSP 10 bar g

(145 psi g)

10 bar g

(145 psi g)

Type 2 = 63 mm (2½") diameter ¼" BSP 10 bar g

(145 psi g)

8 bar g

(116 psi g)

Type 3 = 90 mm (3½") diameter ¼"BSP 8 bar g

(116 psi g)

5 bar g

(73 psi g)

2.3 Kvs values

Size DN15

½"

DN20

¾"

DN25

DN32

1¼"

DN40

1½"

DN50

Kvs

PG51G 4.5 8.0 15.6 24.6 42.0 57.0

PF6_G 4.5 8.0 15.6 24.6 42.0 57.0

For conversion:

Cv(UK) = Kvx 0.963

Cv(US) = Kvx 1.156

IM-P373-05 CTLS Issue 14

2.4 Sizes, pipe connections and actuator combinations

Valve type and pipe connections Actuator type

and

version

DN15

½"

DN20

¾"

DN25

DN32

1¼"

DN40

1½"

DN50

PF51G

PF60G

PF61G

PF62G

PF64G

Screwed BSP or NPT

Threaded spigots to ISO 228 /1 (DN50 to ISO 338)

Screwed BSP or NPT

Butt weld to DIN 11850 pipe,ASME B 36.10/ISO 65 pipe or ISO 4200 pipe

Socket weld to ASME B 36.10/ISO 65 pipe

1PTFE • • PF51G only

PTFE • • • • • •

H• • •

PTFE • • • •

HAvailable on request • • •

PF63G Flanged to EN 1092 or ASME Class 150 (welded on flanges)

PTFE • • • • • •

H• • •

PTFE • • • •

HAvailable on request • • •

2.5 Available range

Valve action Screwed

(BSP or NPT) Butt weld Flanged

(EN or ASME)

Normally Closed

(flow over seat)

PF51G-1NC

PF61G-1NC PF62G-1NC

PF51G-2NC

PF61G-2NC PF62G-2NC PF63G-2NC

PF51G-3NC

PF61G-3NC PF62G-3NC PF63G-3NC

Normally Open

(flow under seat)

PF51G-1NO

PF61G-1NO PF62G-1NO

PF51G-2NO

PF61G-2NO PF62G-2NO PF63G-2NO

PF51G-3NO

PF61G-3NO PF62G-3NO PF63G-3NO

Bi-Directional normally closed (flow

over or under seat)

PF51G-1BD

PF61G-1BD PF62G-1BD

PF51G-2BD

PF61G-2BD PF62G-2BD PF63G-2BD

PF51G-3BD

PF61G-3BD PF62G-3BD PF63G-3BD

IM-P373-05 CTLS Issue 14 9

2.4 Sizes, pipe connections and actuator combinations

Valve type and pipe connections Actuator type

and

version

DN15

½"

DN20

¾"

DN25

DN32

1¼"

DN40

1½"

DN50

PF51G

PF60G

PF61G

PF62G

PF64G

Screwed BSP or NPT

Threaded spigots to ISO 228 /1 (DN50 to ISO 338)

Screwed BSP or NPT

Butt weld to DIN 11850 pipe,ASME B 36.10/ISO 65 pipe or ISO 4200 pipe

Socket weld to ASME B 36.10/ISO 65 pipe

1PTFE • • PF51G only

PTFE • • • • • •

H• • •

PTFE • • • •

HAvailable on request • • •

PF63G Flanged to EN 1092 or ASME Class 150 (welded on flanges)

PTFE • • • • • •

H• • •

PTFE • • • •

HAvailable on request • • •

Valve action Socket weld Threaded spigots

Normally Closed

(flow over seat)

PF64G-1NC PF60G-1NC

PF64G-2NC PF60G-2NC

PF64G-3NC PF60G-3NC

Normally Open

(flow under seat)

PF64G-1NO PF60G-1NO

PF64G-2NO PF60G-2NO

PF64G-3NO PF60G-3NO

Bi-Directional normally closed

(flow over or under seat)

PF64G-1BD PF60G-1BD

PF64G-2BD PF60G-2BD

PF64G-3BD PF60G-3BD

Optional extras:

Travel switch (I) =PF61G-2BD-I

Flow regulator (R) =PF61G-2BD-R

Position module mechanical switch (A) = PF60G-1NC-A

Position module inductive switch (B) =PF60G-1NC-B

IM-P373-05 CTLS Issue 14

Temperature °C

Pressure bar g

Steam

saturation

curve

Pressure psi g

Temperature °F

2.6 Pressure/temperature limits

The product must not be used in this region or beyond the body design conditions quoted in the

table below as damage to the internals will occur.

High temperature stem seals (Option H) are required for use in this region.

Body design conditions

PF51 Screwed - Bronze DN15 - DN25 (½" - 1") PN25

Screwed, butt weld, socket

weld, threaded

spigots,

flanged

EN 1092

DN15 - DN25 (½" - 1") PN40

DN32 and DN40 (1¼" - 1½") PN25

DN50 (2") PN16

Flanged ASME DN15 - DN50 (½" - 2") Class 150

Maximum design pressure Refer to the graph above

Maximum design temperature 200 °C (392 °F)

Minimum design temperature -10 °C (14 °F)

Maximum operating

pressure for saturated

steam service

Standard seals 9 bar g @ 180 °C (131 psi g @ 356 °F)

High temperature seals -

Option H14.5 bar g @ 200 °C (210 psi g @ 392 °F)

Maximum operating

temperature

Standard seals 180 °C @ 9 bar g (356 °F @ 131 psi g)

High temperature seals -

Option H200 °C @ 14.5 bar g (392 °F @ 210 psi g)

Minimum operating temperature -10 °C (14 °F)

Note: For lower operating temperatures consult Spirax Sarco.

Ambient temperature limits -10 °C to +60 °C (14 °F to 140 °F)

Designed for a maximum cold hydraulic test pressure of: 1.5 x body design conditions

Note: Valves which are being subjected to hydraulic testing must be in the fully open position.

A - APN10

B - B PN16 and

ASME 150

C - C PN25

D - D PN40

Ce manuel convient aux modèles suivants

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