Screenshot 2023-01-15 at 22.29.18

Safety Valves ( Alu. Type) 4-4916

Valve 4-4930
Shifting Valve (Complete with Ball Rollers) 1-1300
Opening Pressure Port Thread Original Ref. BD Ref.
19 + 2 Bar M16 x 1,5 DR 5128 (Knorr) 4-4916
85122895 (Volvo)
Brand Cross Reference
Volvo 21387977
SKU: 4-4916 Categories: , Tags: ,
Add to quote

Description

Safety valves blow off when reservoir pressure passes the set figure and reseat once it falls back. They are the last protection against over-pressure if the governor or the unloader fails, and they are set and sealed by the maker.

Key data for this version: opening pressure 19+2 Bar, thread M16x1,5. The Buyukdemir reference is 4-4916.

It cross-refers to the original equipment numbers DR 5128, 85122895, 21387977.

This is the 19+2 Bar version; the nearest sizes in the same range are 17+2 Bar, M26x1,5 (4-4911), 15 Bar, M26x1,5 (4-4912), 13 Bar, M26x1,5 (4-4914), 10 Bar, M26x1,5 (4-4915), 9 Bar, M26x1,5 (4-4913).

Manufactured by Büyükdemir Otomotiv in Istanbul, Türkiye, a producer of compressed-air brake and pneumatic components for trucks and trailers since 1957.