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A PRESSURE RELIEF VALVE WHICH IS A SPARE PART SPECIFICALLY MADE FOR A WATER HEATER. THE WATER HEATER IS DESIGNED TO BE MOUNTED UNDER THE FLOOR OF A CARAVAN AND HEAT 8 LITRES OF WATER TO 72 DEGREES CENTEGRADE USING A 1.35 KW LPG BURNER OR A 1.5KW MAINS ELECTRIC ELEMENT. THE VALVE IS MADE OF MOULDED PLASTIC.

AUTOMATIC BY PASS SAFETY VALVE FOR USE IN A DOMESTIC CENTRAL HEATING SYSTEM. IF PRESSURE IN THE SYSTEM IS EXCEEDED THE VALVE OPENS AND RELEASES WATER. MADE FROM BRASS. SIZE 22MM.

3 BAR SAFETY VALVE. MADE FROM BRASS. SIZE 1/2". IF PRESSURE IN THE SYSTEM IS EXCEEDED THE VALVE WILL OPEN TO RELEASE WATER.

A DOWNHOLE SAFETY VALVE USED IN DRILL STEM TESTING. IT IS A SINGLE SHOT BALL VALVE RUN IN THE OPEN POSITION. IF REQUIRED THE BALL CAN BE CLOSED BY APPLYING ANNULUS PRESSURE TO BURST A HIGH ACCURACY RUPTURE DISC. ONCE THIS PATH IS OPENED THE ANNULUS PRESSURE FORCES AN OPERATING MANDREL IN AN UPWARD DIRECTION TO ROTATE THE BALL VALVE TO THE CLOSED POSITION. ONCE CLOSED THE BALL WILL ISOLATE WELL PRESSURE BUT WILL STILL ALLOW FLUID TO BE PUMPED THROUGH FROM ABOVE. PUMP THROUGH PRESSURES DEPEND ON HYDROSTATIC AND DIFFERENTIAL PRESSURE. THE MAIN COMPONENT OF THIS TOOL IS MADE FROM CARBON STEEL, OTHER COMPONENTS ARE MADE OF STAINLESS STEEL.

PRESSURE RELIEF VALVE 6 BAR 1/2 INCH FEMALE CONNECTOR. MADE FROM GLASS FILLED POLYPROPYLENE. HOT WATER MAXIMUM PRESSURE 6 BAR WITH MAXIMUM HOT WATER TEMPERATURE 85 DEGREES CENTIGRADE.