Download
Share
Print this page
Zetkama 221 User Manual
  1. Manuals
  2. Brands
  3. Zetkama Manuals
  4. Control Unit
  5. 221
  6. User manual

Zetkama 221 User Manual

Balancing valves zsta
Hide thumbs
1
2
3
4
5
6

Advertisement

Quick Links

Download this manual
ZETKAMA Sp. z o.o.
ul. 3 Maja 12
PL 57-410 Ścinawka Średnia
BALANCING VALVES zSTA

TABLE OF CONTENTS

1.
Product description
2.
Requirements for maintenance staff
3.
4.
5.
6.
7.
8.
9.
11. Decommissioning
1.
PRODUCT DESCRIPTION
Balancing valves Fig.221 are globe valves with threaded connections and an oblique body. They are used for
medium flow control. The medium flows in the direction indicated on the valve.
Differential pressure measurement takes place in measuring orifice. The advantage of this solution is, inter alia,
the possibility of direct flow measurement. Kv factor of the measuring orifice, where the measurement of the
differential pressure is made, is constant and does not change during flow adjustment. In practice, this means that we
can balance the system much more easily and faster. When measuring the flow rate, Kv is entered to the measuring
device only once (for the specific measuring orifice), and then the flow can easily be adjusted by observing the varying
flow on the measuring device. In this way making a flow adjustment is easy and very accurate.
H version (brass)
1/12
USER MANUAL
Fig. 221
Version: 1/2022
Date: 09.05.2022

Advertisement

loading

Related Manuals for Zetkama 221

Summary of Contents for Zetkama 221

  • Page 1: Table Of Contents

    12. Warranty conditions PRODUCT DESCRIPTION Balancing valves Fig.221 are globe valves with threaded connections and an oblique body. They are used for medium flow control. The medium flows in the direction indicated on the valve. Differential pressure measurement takes place in measuring orifice. The advantage of this solution is, inter alia, the possibility of direct flow measurement.

  • Page 2: Transport And Storage

    Pressure tap CuZn36Pb2As + EPDM Max. temperature 120°C Fittings manufactured by ZETKAMA, including balance valves, have a permanent marking in accordance with the requirements of the PN-EN19 standard. Marking facilitates technical identification and includes: • nominal diameter DN (inch), •...

  • Page 3: Application

    In case that operating conditions exceed these requirements, e.g. in the case of aggressive or abrasive mediums, a user should make an inquiry to the manufacturer before ordering. Operating pressure should be adjusted to the maximum temperature of the medium, as shown below. Balancing valve Fig. 221 H (brass) Acc. to EN 1092-2 Temperature [º C]...

  • Page 4: Maintenance And Repair

    Inspection frequency should be determined by the user. 8. MAINTENANCE AND REPAIR The balancing valves fig. 221 do not require any maintenance provided that they are used in accordance with their intended use. Before taking up any maintenance actions, make sure the flow of medium in the pipeline was cut off, the pressure was reduced to ambient pressure, medium was removed and the system was cooled down.

  • Page 5: 10. Causes Of Operating Malfunctions And Their Elimination

    Kv values for various settings for the valve Fig. 221 version H (brass): Type Body material Valve flow Kv coefficient [m Wheel position 1,00 2,71 2,48 4,52 5,13 7,07 1,27 3,55 3,35 6,50 7,76 9,67 1,43 3,88 3,91 7,72 9,32...

  • Page 6: 12. Warranty Conditions

    12. Warranty conditions ZETKAMA grants warranty for proper operation of its products, provided that they are installed in accordance with the instruction manual and operated in accordance with the technical specifications and parameters described in the ZETKAMA data sheets. Warranty period is 18 months from the date of installation, but not longer than 24 months from the date of sale.