Gate Valves
Gate Valves - Image 2
Gate Valves - Image 3
Gate Valves - Image 4
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Gate Valves - Image 6

Gate Valves

Can be used in distribution networks, fire networks, water transmission, agriculture, wastewater treatment plants, engine rooms and industrial applications up to 80 degrees Celsius.

  • DN: 50 to 400 mm
  • PN: 10 to 25 bar
  • Standards:
    • EN 558 – Series 14,
    • EN 1092-2
    • EN 1171
    • EN 12266
SKU: 01-1-1 Category:

Description

  • Final inspection test according to DIN EN 12266-1 and ISO 5208

 

  • Pressure drop coefficient in gate valves when the valve is fully open:

 

  • Gate Valaves GVS

 

    • Dimensions and standards
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Instructions for use:

  • When storing gate valves in storage, their sealing slide should be fully open.
  • The environmental conditions of the warehouse to increase the lifespan of the product and rubber parts should be as follows:
    • Ambient temperature maximum 60 degrees Celsius
    • Maximum ambient humidity 70%
    • Away from direct sunlight
  • Due to corrosion and oxidation of the product in case of discoloration, care must be taken during transportation to prevent impact.
  • When transporting and unloading from the machine, avoid throwing or impacting it, as this will damage the axle rod and the product’s color.
  • Never lift the valve using its handle.
  • Before installing the valve, the pipe path must be cleaned of any dirt and debris such as gravel, wood particles, bolts, etc. If there is a possibility of such objects entering the pipeline, a strainer must be installed in the path of the valve.
  • When closing the valve, make sure that there is no tension in the connection. If the valve is connected via a flange, the corresponding screws should be tightened crosswise.

Additional information

Fluid type

Seawater, raw water, drinking water, hot water, oil, sewage

Product type

Body: Ductile iron EN 1563/EN-GJS-400-15
Axle rod material: Stainless steel DIN EN 10088-3, 1.4021
Rubber material: EPDM, NBR

Nominal pressure

PN10-PN16-PN25

Paint coating

All cast iron parts are coated with blue epoxy powder paint RAL5005 or RAL5015 with a minimum thickness of 250 microns and with an electrostatic spraying mechanism, in accordance with the standard.

Maintenance, installation and operation instructions

Sliding gate valve


Abresan Tolou Bahar Roud (ATBR)

1- Installation instructions

Preparing the installation site:

  • The pipes must be perfectly aligned so that no pressure is placed on the valve flanges.
  • Flanges and connecting gaskets must be clean and free of any solid particles.

How to connect:

  • Use appropriate bolts and nuts with the torque specified by the manufacturer.
  • Bolts and nuts should be tightened crosswise and evenly to prevent localized stress.

For installation:

  • Slide gate valves are usually two-way, but if there is a flow direction arrow on the body, installation must be done accordingly.
  • The valve can be installed vertically or horizontally (with the valve facing up), provided that ease of operation is ensured.

Post-installation testing:

  • After installation, the network must be pressure tested to ensure there are no leaks at the connections.
  • The opening and closing performance of the valve should be checked at least once before final operation.

2- Operation (setup and use)

Opening and closing the valve:

  • Opening and closing operations should be performed by slowly rotating the gearbox or gearbox to prevent sudden pressure on the components.
  • If a gear valve is used, the direction of rotation for the open and closed positions must be clearly labeled.
  • Avoid applying excessive force or using non-standard tools to open and close the valve.

Performance control:

  • Check the valve for full operation in both the fully open and fully closed positions.
  • Avoid placing the valve in a half-open position, except in special cases foreseen in the design.

Prevent pressure fluctuations:

  • In networks with severe pressure fluctuations, the use of protective equipment such as pressure relief valves or surge arrestors is recommended.

3- Maintenance and warehousing

Warehouse conditions:

  • Valves should be stored in a dry, clean, and well-ventilated environment.
  • Avoid direct contact of the milk with the ground, moisture, or direct sunlight.
  • In case of long-term storage, it is recommended to protect the valve connections with plastic cover.

Periodic inspection in the warehouse:

  • Check the valve's appearance every three months for rust, cracks, or deformation.
  • If there are mechanical accessories such as gearboxes, apply light lubrication.

Protection of metal surfaces:

  • If damage is observed in the epoxy coating or uncoated areas, the surface should be repaired with industrial rust-proof paint.

Abresan Tolou Bahar Roud (ATBR)

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