4,500 PSI Burst Disc

  4,500 PSI Standard Disc   This is our standard burst discs. This disc is 4,500psi working 7,200psi blow. These discs require the three piece system. It goes burst disc plug, burst disc and then burst disc washer next to the valve body.   Fits: Sherwood (old ones) Blue Steel Thermo Dive Rite Highland Salvo Halcyon   Important note: If you have a one piece burst disc you can not make it a three piece burst disc by just pulling it apart. One piece burst disc run an edge on the plug that the washer/disc combo seals to. A Three piece disc uses a flat on the plug to seal against. Do not be cheap here replace the plug. If you do not the tank will fill like normal but will keep blowing discs once it gets to higher pressure it will blow. The reason this happens is the burst disc gets scored from the plug being wrong.