TEG-BE8H-M-00 20 August 2013
Bellows Sealed Valve
BE8H
Copyright © 2013 by TLV Euro Engineering GmbH
All rights reserved
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Contents
Introduction ........................................................................ 1
Safety Considerations ........................................................ 2
Installation & Operational Considerations .......................... 3
Product Description....................................................
1.
2. Requirements for Maintenance Staff .........................
3. Transport and Storage ...............................................
4. Function .....................................................................
5. Application .................................................................
6. Configuration..............................................................
7. Installation..................................................................
8. Maintenance ..............................................................
9. Service and Repair ....................................................
10. Troubleshooting .........................................................
11. Disposal .....................................................................
12. Product Warranty .......................................................
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Introduction
Thank you for purchasing the Bellows Sealed Valve.
This product has been thoroughly inspected before being shipped from the
factory. When the product is delivered, before doing anything else, check the
specifications and external appearance to make sure nothing is out of the
ordinary. Also be sure to read this manual carefully before use and follow the
instructions to be sure of using the product properly.
If detailed instructions for special order specifications or options not contained
in this manual are required, please contact for full details.
This instruction manual is intended for use with the model(s) listed on the front
cover. It is necessary not only for installation but for subsequent maintenance,
disassembly/reassembly and troubleshooting. Please keep it in a safe place for
future reference.
TEG-BE8H-M-00 20 August 2013
Safety Considerations
• Read this section carefully before use and be sure to follow the instructions.
• Installation, inspection, maintenance, repairs, disassembly, adjustment and
valve opening/closing should be carried out only by trained maintenance
personnel.
• The precautions listed in this manual are designed to ensure safety and
prevent equipment damage and personal injury.
• The cautionary items below are very important for safety: be sure to observe
all of them as they relate to installation, use, maintenance, and repair.
Furthermore, TLV accepts no responsibility for any accidents or damage
occurring as a result of failure to observe these precautions.
Symbol
CAUTION
Indicates that there is a possibility of injury or equipment/
product damage
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CAUTION
Install properly and DO NOT use this product outside the
recommended operating pressure, temperature and other
specification ranges.
Improper use may result in such hazards as damage to the product
or malfunctions that may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
Take measures to prevent people from coming into direct
contact with product outlets.
Failure to do so may result in burns or other injury from the
discharge of fluids.
When disassembling or removing the product, wait until the
internal pressure equals atmospheric pressure and the surface
of the product has cooled to room temperature.
Disassembling or removing the product when it is hot or under
pressure may lead to discharge of fluids, causing burns, other
injuries or damage.
NEVER attempt to modify the product in any way.
Failure to observe these precautions may result in damage to the
product and burns or other injury due to malfunction or the discharge
of fluids.
Do not use excessive force when tightening nuts and bolts on
product flanges or when connecting threaded pipes to the product.
Over-tightening may cause breakage leading to fluid discharge,
which may cause burns or other injury.
Use only under conditions in which no freeze-up will occur.
Freezing may damage the product, leading to fluid discharge, which
may cause burns or other injury.
Use only under conditions in which no water hammer will occur.
The impact of water hammer may damage the product, leading to
fluid discharge, which may cause burns or other injury.
Do not stand on or apply body weight to the handle.
The handle may break, resulting in injury or other accident.
Do not carry the product by the handle.
The handle is not secured and may move causing injury.
Do not place fingers inside the product.
The handle may be turned resulting in injury.
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Installation & Operational Considerations
CAUTION
1. Product Description
BE8H series bellows sealed globe valves are used as stop valves. Stop valves are
designed only for shutting off and opening the path of flow.
Stem sealing is performed by a flexible bellows and an additional protecting gland.
Bellows sealed valves are provided with cast markings according to the requirements
of the PN-EN19 standard. The markings facilitate technical identification and contain:
・ nominal diameter DN (mm),
・ nominal pressure PN (bar),
・ body and bonnet material,
・ arrow indicating medium flow direction,
・ manufacturer,
・ heat number,
・ CE marking, for products subject to the
97/23/EC directive. CE marking starts from
DN32
Before installing the product, blow out the piping to remove
any piping scraps, dirt, oil and scale.
Failure to do so may result in leakage at the seat due to foreign matter.
Do not remove the product from its box or protective covering
until just prior to installation.
The protective cover keeps damage causing foreign materials out of
the product.
Do not attempt to turn the handle past the full open or full closed
position.
Turning past these points may cause product malfunction or damage.
heat number
2. Requirements for Maintenance Staff
The staff assigned to assembly, operation and maintenance tasks should be qualified
to carry out such jobs. If the valve is provided with mechanical actuators, the operating
manual of the actuator should be obeyed. During operation parts of the valve, for
example the handwheel, cover, or body, may become hot and the user should take
appropriate measures to prevent burns.
3. Transport and Storage
Transport and storage should be carried out at
temperatures between -20 and 65 °C. Valves
should be protected against the influence of
external forces and destruction of the paint
layer as well. The aim of the paint layer is to
protect the valves against rust during transport
and storage. Valves should be kept in clean,
dry rooms and protected against the influence
of atmospheric conditions. A drying agent or
heating should be applied in damp rooms to
prevent condensate formation. The valves should be transported in such a way as to
avoid handwheel and valve stem damage.
Do not fit lifting devices to connecting holes or handwheel.
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4. Function
BE8H series valves are designed to shut off the medium flow. The type of working
medium may make some materials unsuitable for use. Valves are designed for normal
working conditions. Working pressure is related to the maximum temperature of the
medium as shown in the table below.
Model Material PN -20 -10 50 100 120 150 200 250 300 350 400
BE8H-16 EN-GJL-250 16 --- 16 16 16 16 14.4 12.8 11.2 9.6 --- ---
BE8H-25 EN-GJS-400-18-LT 25 --- 25 25 25 25 24.3 23 21.8 20 17.5 ---
BE8H-40 GP240GH 40 30 40 40 37.1 36.3 35.2 33.3 30.4 26.7 25.7 23.8
The plant designer is responsible for selection of a valve that is suitable for
working conditions.
5. Application
・ Steam, water, air and other fluids*
(*Do not use for toxic, flammable or otherwise hazardous fluids.)
・ Industrial technologies, power industry, etc.
Temp. (°C)
Maximum
Operating
Pressure
(barg)
6. Configuration
No. Part Name
1 Body
2 Seat Ring
3 Bonnet
4 Stem
5 Handwheel
6 Gland
7 Plug
8 Bellows
9 Sleeve
10 Gland Seal
11 Bonnet Gasket
12 Bonnet Bolt/ Bonnet Nut
BE8H-40
⑤
⑩
⑫
⑪
⑦
BE8H-16, BE8H-25
⑨
⑥
③
④
⑧
⑦
②
①
7. Installation
During the installation of the Bellows Sealed Valve the following steps should be
observed:
・ Visually inspect the valve initially to ensure it is undamaged and also ensure that it
is suited to the medium and working conditions used in the plant.
・ Remove dust caps if supplied.
・ Protect the valve during installation from debris and excessive temperature
conditions.
・ Steam pipelines should be fitted in such a way as to avoid condensate collection; in
order to avoid water hammer, a steam trap should be installed.
TEG-BE8H-M-00 20 August 2013
The pipeline where the valve is fitted should be arranged in such a way that
the valve body is not subjected to any bending or stretching forces.
Bolted joints on the pipeline must not cause additional stress resulting from
excessive tightening, and fastener materials must comply with the working
conditions of the plant,
・ The valve stem should be protected during pipeline painting.
・ The valve can be installed in any position, however it is recommended to install it
with the handwheel upwards.
Take note of the medium flow direction, marked with an arrow on the body.
Flow direction is established by the followings rules:
Under the disc
On the disc
・ Before plant startup, especially after repairs are
carried out, flush out the pipeline through the fully
open valve, in order to discharge solid particles or
BE8H-16 / BE8H-25 BE8H-40
Stop valve Stop valve
PN16 – PN25 PN40
DN15 – DN150 DN15 – DN100
DN200 DN125 – DN150
Flow on the
disc
Flow under the
disc
welding splinters which may be harmful for sealing surfaces.
・ A strainer (wire mesh filter) installed before the valve increases the certainty of
correct operation.
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8. Maintenance
During maintenance the following rules should be observed:
open
・ Startup process – Sudden changes of pressure and
temperature should be avoided when starting the plant.
・ The valve is closed by turning the handwheel clockwise
when looking down from above the handwheel (according
to the arrow direction marked on the handwheel).
・ The valve is opened by turning the handwheel
counter-clockwise.
Do not use any additional lever when turning the handwheel
・ The performance of fitted valves can be checked by repeated closing and opening.
・ If leakage occurs from the valve stem, it is necessary
to tighten gland nut compressing the gland seal with
moderate force until the leakage stops.
Leakage on the gland means that the bellows
has been damaged.
The upper part of the valve should be
replaced immediately
shut off
Tighten the nutTighten the nut
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9. Service and Repair
For safety assurance, each valve should be surveyed and maintenance
carried out regularly especially for those which are used rarely. The
frequency of these activities should be determined by the user on the basis
of working (operating) conditions, nevertheless they should be done at least
once a month. The stem thread must also be lubricated periodically.
All service and repair jobs should be carried out by authorized staff using suitable tools
and original spare parts. Before removing the valve from the pipeline, or before service,
the pipeline should be out of operation. During service and repair jobs it is necessary to
decrease pressure to 0 bars, valve temperature to ambient temperature and to use
appropriate personal protective gear at all times. After valve removal it is necessary to
replace the flange connection gaskets between the valve and pipeline.
Precautions should be taken when touching the gasket between the body and
the valve bonnet. The gasket contains a metal core which may cause injury,
Every time the valve bonnet is disassembled the sealing surfaces should be cleaned.
During assembly a new gasket of the same type as previously used should be applied.
Body-bonnet bolt connections should be tightened when the valve is in the open
position. The bolts should be tightened evenly and crosswise using a torque wrench.
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4
3
2
・ Tightening torques
Screw M8 M10 M12 M16
Torque (N⋅m)
15 – 20 35 – 40 65 – 70 140 – 150
・ Before re-installing the valves in the pipeline it is necessary to check valve
operation, and tightness of all connections. A tightness test should be carried out
with a water pressure of 1.5 times the nominal pressure of the valve.
10. Troubleshooting
When troubleshooting the valve, all safety rules should be strictly obeyed
Fault Possible reason Remedy
Valve closed Open the valve No flow
Flange dust caps were not removed Remove dust caps on the flanges
Poor flow
the handwheel
Stem leakage Bellows damage Tighten the gland until leakage
Seat leakage Incorrect shut off Tighten the handwheel without
Valve is not open enough Open the valve
Dirty filter Clean or replace the screen
Clogged pipeline Check the pipeline
Dry stem Grease the stem Difficulty operating
Gland overtightened Slightly slacken gland nut. Pay
attention to maintaining gland
tightness
stops and replace the upper part of
the valve as soon as possible.
using any auxiliary tools
The table continues on next page
TEG-BE8H-M-00 20 August 2013
Fault Possible reason Remedy
Seat leakage
Broken connecting
flange
Seat or disc damage Replace the valve and contact the
supplier or TLV
Pressure difference too great Apply valve with balancing disc.
Check if the valve was installed
according to direction of arrow
marked on the valve.
Medium polluted with solid
particles
Bolts tightened unevenly Replace the valve with new one
Clean the valve. Fit strainer
before the valve.
11. Disposal
Obsolete and dismantled valves must not be disposed of with household waste. This
product is made of materials which can be re-used and should be delivered to
designated recycling centers.
12. Product Warranty
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1. Warranty Period
One year following product delivery.
2. Warranty Coverage
TLV Euro Engineering GmbH warrants this product to the original purchaser to be
free from defective materials and workmanship. Under this warranty, the product
will be repaired or replaced at our option, without charge for parts or labor.
3. This product warranty will not apply to cosmetic defects, nor to any product whose
exterior has been damaged or defaced; nor does it apply in the following cases:
1) Malfunctions due to improper installation, use, handling, etc., by other than TLV
Euro Engineering GmbH authorized service representatives.
2) Malfunctions due to dirt, scale, rust, etc.
3) Malfunctions due to improper disassembly and reassembly, or inadequate
inspection and maintenance by other than TLV Euro Engineering GmbH
authorized service representatives.
4) Malfunctions due to disasters or forces of nature.
5) Accidents or malfunctions due to any other cause beyond the control of TLV
Euro Engineering GmbH.
4. Under no circumstances will TLV Euro Engineering GmbH be liable for
consequential economic loss damage or consequential damage to property.
* * * * * * *
For Service or Technical Assistance:
Contact your
representative or your regional
office.
Daimler-Benz-Straße 16-18, 74915 Waibstadt, Germany
Tel: [49]-(0)7263-9150-0 Fax: [49]-(0)7263-9150-50
Star Lodge, Montpellier Drive, Cheltenham, Gloucestershire, GL50 1TY, U.K.
Tel: [44]-(0)1242-227223 Fax: [44]-(0)1242-223077
Parc d’ Ariane 2, bât. C, 290 rue Ferdinand Perrier, 69800 Saint Priest, France
Tel: [33]-(0)4-72482222 Fax: [33]-(0)4-72482220
TEG-BE8H-M-00 20 August 2013
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