Danfoss Modification to gland seal Fact sheet

assembled

valve

assembled

valve

Tech Note

From Residential and Commercial Comfort Controls
Date: 2004.07.06

Modification to gland seal

Modification

A modified gland seal will be introduced in the below mentioned valves. The modification is in
the pin in the gland seal. The pin has a groove in which the lock disk sits.

This modification makes the pin more resistant to a rise in the internal pressure caused by the
water freezing, and will help on the problem with pins that are pressed out of the gland seal
because the water in the valve is frozen.

Please note that with this modification the valves are still not freezing proof.

Affected products

Sales and
ordering
numbers

013L3590

RTD-G 20

013L3593

Assembled

013L3575

RTD-N 15

013L0668

New

013L3574

RTD-G 20

013L3577

Assembled

013L3580

RTD-N 15

013L0668

New

013L0667

New gland seal

013L0666

Pressure pin

The above mentioned valves are for a Russian OEM customer.

Delivery

The gland seal will be supplied to the Russian production from August 2004.

Technical support

CD-ST, Helle B. Christiansen