Screenshot 2023-01-09 at 10.01.30

Quick Release Valve / Schnellentlüftungsventil 4-4700

Repair Kit for Air Coupling Cuna (4 Pcs) 5-3057
Quadruple Circuit Protection Valve / Vierkreis – Schutzventil 4-6100
Original Ref.   Thread & Gewinde   BD Ref.
  Supply 1 Delivery 2 Exhaust 3  
0004294144 22 x 1,5 22 x 1,5 22 x 1,5 4-4700
4735010000        
4735012020        
4735012030        
973 500 000 0        
RE2108        
9735000130 22 x 1,5 16 x 1,5 16 x 1,5 4-4702
973 500 047 0        
973 500 014 0 1/2” NPT 1/2” NPT 1/2” NPT 4-4703
473 501 201 0 22 x 1,5 (w. spring) 22 x 1,5 22 x 1,5 4-4701
9735000170 R 3/8 R 3/8 R 3/8 4-4704
  1/2” NPT 3/8” NPT 3/8” NPT 4-4705
9735000400 16 x 1,5 16 x 1,5 16 x 1,5 4-4706
  3/8” NPT 1/4 NPT 3/8” NPT 4-4707
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Description

Quick release valves vent the brake chambers straight to atmosphere instead of returning the air along the line to the brake valve. The shorter exhaust path releases the brakes faster, which matters most on long-wheelbase vehicles and trailers.

Key data for this version: supply 22 X 1.5, delivery 22 X 1.5, exhaust 22 X 1.5. The Buyukdemir reference is 4-4700.

It cross-refers to the original equipment numbers 000 429 41 44, 473 501 000 0, 473 501 202 0, 473 501 203 0, 973 500 000 0, RE 2108.

This is the 22 X 1.5 version; the nearest sizes in the same range are 22 X 1.5, 16 X 1.5, 16 X 1.5 (4-4702), 22 X 1.5 (with spring), 22 X 1.5, 22 X 1.5 (4-4701), 16 X 1.5, 16 X 1.5, 16 X 1.5 (4-4706), R 3/8", R 3/8", R 3/8" (4-4704), 3/8 NPT, 3/8 NPT, 1/4 NPT (4-4707).

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