08 four-circuit protective valve; sales codes: b18 / B69

22955; PRIORITY VENTILATION OF BRAKE CIRCUITS, WITH BY-PASS; STADTWERKE FRANKFURT/MAIN; Modifications: 400/401/402/404/406/410/415/420/422/424/425/430/432/434/435/436/438/440/442/444/450/451/454/455/460/461/464/465/466/470/474/476/480/484/486/488