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NEOTECHA

 NTB-NTC BALL VALVES

INSTALLATION AND MAINTENANCE INSTRUCTIONS

Before installation these instructions must be fully read and understood

1 GENERAL INFORMATION ON THE 
INSTALLATION AND MAINTENANCE 
INSTRUCTIONS

These instructions contain information on 
how the valve should be safely installed and 
operated in the prescribed manner. If any 
problems are encountered during installation 
or operation which cannot be resolved with 
the aid of the installation and maintenance 
instructions, please contact the supplier or 
manufacturer for more information.
These installation and maintenance 
instructions comply with the applicable 
EN safety standards.
When installing the fitting, the operator or 
the person responsible for the design of 
the installation must ensure that applicable 
national regulations are complied with.
The manufacturer reserves all rights to 
make technical changes and improvements 
at any time.
The use of these installation and maintenance 
instructions assumes that the user is qualified 
to “Qualified Personnel” level. Operating staff 
must be given appropriate training in the 
operating and maintenance instructions.

2 SAFETY

Please also read through these notes carefully.

2.1 General potential danger due to:

a.  Failure to observe the instructions
b.  Improper use
c.  Insufficiently qualified personnel

2.2 Correct use

2.2.1 Area of application

Ball valves are bubble-tight shut-off industrial 
valves that can be used for the isolation, 
throttling and regulation of corrosive gases, 
liquids, pastes and powder products in 
pipelines, vessels, apparatus etc.
The surfaces of the of the body parts, together 
with the ball or C-core that are in contact 
with the medium are coated with PFA. Ball 
seats and control orifice plates are available 
in various material types and can be used to 
suit the medium.

Emerson.com/FinalControl

© 2017 Emerson. All Rights Reserved.

VCIOM-01973-EN 15/02

2.2.2 Performance data

Nominal diameter range:

  DIN-PN 16 and JIS 10K

  DN 15 / 20 / 25 / 40 / 50 / 65 / 80 / 100 / 150
  (ANSI 6” face-to-face with extension)

  ANSI 150 lbs

 ½”, ¾”, 1”, 1½”, 2”, 2½”

  (DIN face-to-face), 3”, 4”, 6”
Pressure range:
  16 bar (0.1 mbar vacuum)
  Test pressure = 1.5 x PN = 24 bar
Temperature range:
  -40°C to 180°C

Summary of Contents for Neotecha NTB

Page 1: ...hat the user is qualified to Qualified Personnel level Operating staff must be given appropriate training in the operating and maintenance instructions 2 SAFETY Please also read through these notes carefully 2 1 General potential danger due to a Failure to observe the instructions b Improper use c Insufficiently qualified personnel 2 2 Correct use 2 2 1 Area of application Ball valves are bubble t...

Page 2: ...utions should be taken to protect against burns due to high or freezing temperatures In particular insulated gloves should be worn when using the hand lever for example In case of fire the mechanical strength of the PTFE seals is no longer guaranteed above 200 C 2 2 5 Usage restrictions Before the valve is installed a check should be made on the extent to which the coating of the surfaces is resis...

Page 3: ... information should be carefully noted down each time Ball valves in the size range DN 15 to DN 25 have a standard rating plate with no CE mark Ball valves in the size range DN 40 to DN 150 are provided with a rating plate with a CE mark Additional identification on the valve in accordance with DIN 19 such as DN PN manufacturer s logos of the Neotecha AG company The identification of the valve bod...

Page 4: ... the hand lever can be provided with limit switches which indicate open or closed For installation in exposed places shaft extensions in various lengths are available for all sizes 6 6 Bolted joints in the pipeline All flange bolts must be used even on low pressure systems The specified tightening toques for the bolts must always be adhered to 6 7 Body variants NTB and NTC ball valves have the sam...

Page 5: ... mm inches Nm 6 9 1 Recommended tightening torques for NTB NTC ball valves DIN PN 16 and JIS 10K RECOMMENDED TORQUES DN Bolts Class Torque mm inches UNC lbf ft 6 9 2 Recommended tightening torques for NTB NTC ball valves ANSI B 16 10 class 150 lbs 6 8 Step by step valve installation 1 Check that the distance between flanges matches the face to face dimension of the ball valve Before installing the...

Page 6: ...t is installed or existing protective equipment repaired 9 USE 9 1 Operation general NTB series ball valves should only be used in the fully open or fully closed position as they are not designed for flow regulation Intermediate settings can result in turbulence leading to vibrations in the pipeline system which then generates noise If the flow has to be regulated an NTC series C valve should be u...

Page 7: ...the information in accordance with the rating plate fitted on the mounting flange when ordering seals and other spare parts 14 DISPOSAL Hand in the correctly cleaned valve to the scrap material recycling plant Badly cleaned valves can cause severe burning of the hands and other parts of the body If the valve is passed on to a third party the manufacturer no longer guarantees the valve 10 SERVICING...

Page 8: ...son logo are trademarks and service marks of Emerson Electric Co All other marks are the property of their respective owners The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or the...

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