Transformer Radiator Valves DIN 42560 Type A / A OR

Our transformer radiator valves DIN 42560 type A and A OR are designed to be welded onto the transformer wall or on connection pipes. The radiator will be flanged on the four M16 holes (PCD=160). The housing of the radiator valve is made of forged steel S355J2G3 and thus not subject to any leakage as it may occur with casted housing.

Due to the metal sealed clap a low leakage is permitted while the soft-sealed radiator valve is absolutely oil- and vacuum-tight. Both types are absolutely tight in operation condition to the outside. Our welding neck radiator valves DIN 42560 A NW 80 fulfil the tightness requirements and operating conditions in accordance with DIN 42560 as well as EN 50216-8. 

Transformer Radiator Valve Features

  • Groove for O-ring-sealing in accordance to customer request
  • Height h=70 or h=85 mm
  • 4x M16 threads or 18 mm bores
  • Valve body (h=70) in stainless steel (AISI 316L)
  • Modified welding neck in accordance with customer request
  • Special design up to -60°C possible
  • Setting device in several versions
    • Setting device Standard in accordance with DIN 42560 (SW17/SW36)
    • Lockable cap
    • Lockable handle (only for metal sealed type)
    • Handle

Transformer Radiator Valves DIN 42560 Type A and A OR

Detailzeichnung DIN 42560 Form A                 Detailzeichnung DIN 42560 Form A OR

                 Metal sealed                                                            Soft sealed

Transformer Radiator Valve 42560 type A / A OR for Offshore

Depending on customer requirements, our transformer radiator valves type B and B OR can be equipped for harshest conditions as follows:

Ordering options welding neck transformer radiator valves

In order to answer your request as quickly as possible, you will find below our ordering options. In addition, you can find the ordering options for our welding neck transformer radiator valves as a PDF download. For special designs, please contact us directly. Together we will find a solution!

Request transformer radiator valve / metal sealed

Request transformer radiator valve / metal sealed
1. Body material
2. Bore (Detail B)
3. Groove options (Detail C) / d x b x t / D
4. Welding neck (Detail D)
5. Height (h)
6. Setting device (Detail E)
7. Position indicator (Detail S)
8. Range of temperature

For customer-specific designs, please contact us directly by using the text field below.

Request transformer radiator valve / soft sealed

Request transformer radiator valve / soft sealed

1. Body material
2. Bore (Detail B)
3. Groove options (Detail C) / d x b x t / D
4. Welding neck (Detail D)
5. Height (h)
6. Setting device (Detail E)
7. Range of temperature

For customer-specific designs, please contact us directly by using the text field below.


Transformer Valve Setting devices

Setting Device Standard Setting Device Lockable Cap Setting Device Lockable Handle  Setting Device Handle

The Setting Device consists basically in all different versions of a thrust member (inner brass part) and a thrust screw (hexagon brass screw). The thrust screw presses the inner thrust member to assure tightness at the area of the spindle. This means that the valve can‘t be operated without loosening the thrust screw.
In case the valve should be welded the device has to be dismounted for welding process to protect sealing materials. The thread has to be protected.

Our transformer radiator valve type A and A OR correspond to type A1 (short and middle) of EN 50216-8.
Our general suggestion is to use our metal-sealed transformer radiator valve for applications where a little leakage could be accepted while assembling/disassembling the transformer radiators due to the maintance-free performance for the transformers lifetime.

Please find below mentioned a comparison of both transformer valve sealing types with advantages and disadvantages as well as the respective ordering options.




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