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STAINLESS STEEL CHECK VALVE (NON RETURN VALVE) USED FOR HIGH PURITY GASES IN THE SEMICONDUCTOR INDUSTRY. THESE VALVES HAVE AN EXTERNAL DIAMETER OF MORE THAN 37MM AND AN OPENING PRESSURE OF NOT MORE THAN 800KPA.

SAMPLING VALVE MADE TO CUSTOMER SPECIFICATION. THEY ARE CHECK (NON-RETURN) VALVES AND ARE COMPOSED OF STEEL.

A CHECK VALVE TO ALLOW AIR OR FLUID TO TRAVEL IN ONLY ONE DIRECTION. THE VALVE ACTS AS A NON-RETURN VALVE. THE VALVE IS MADE OF PLASTIC AND STEEL, BUT PRIMARILY MADE OF STEEL. THE VALVE HAS AN EXTERNAL DIAMETER OF MORE THAN 37 MM. THE VALVE HAS AN OPENING PRESSURE OF 8 BAR BUT DOES NOT EXCEED 100 BAR. THE VALVE IS PART OF A HIGH PRESSURE DIE CASTING MACHINE AND IS NOT MACHINE SPECIFIC.

AN ANNULUS REFERENCE TRAP SYSTEM USED IN DRILL STEM TESTING. THE SYSTEM IS USED TO TRAP A PRESSURE IN THE REFERENCE SECTION OF THE PRESSURE OPERATED TESTER VALVE. THE PRESSURE OPERATED TESTER VALVE CAN THEN BE OPERATED THROUGH APPLICATION AND REMOVAL OF APPLIED ANNULUS PRESSURE. THE SYSTEM FUNCTIONS AS A CHECK (NON RETURN) VALVE. IT HAS A SAFETY FEATURE IN-BUILT WHERE THE CHECK NON RETURN FEATURE CAN HOLD A GIVEN AMOUNT OF PRESSURE BEFORE IT STARTS LEAKING OFF PRESSURE. THIS MEANS THAT THE TOOL IS BACK AT ORIGINALLY STORED PRESSURE ENERGY WHEN IT IS BACK AT THE SURFACE, MAKING IT SAFER TO HANDLE ON THE DRILL FLOOR. THE MAIN COMPONENTS ARE MADE OF CARBON STEEL, SOME PARTS ARE MADE OF STAINLESS STEEL. TOOL WEIGHT: 133 KG. OD: 127MM.

A SELF FILL TUBING TESTER VALVE, PART OF A DRILL STEM TESTING LINE. THE FLAPPER VALVE IN THE TOOL WILL ONLY SUPPORT PRESSURE FROM ABOVE THEREBY ALLOWING COMPLETION FLUID TO ENTER THE TEST STRING VIA THE BYPASS. THE BASIC FUNCTIONS ARE TO ALLOW FLUID FILL OF THE TOOL STRING DURING ENTRY AND TO PROVIDE A METHOD OF PRESSURE TESTING TUBULARS WHILE RUNNING IN THE HOLE. THE VALVE IS HINGED ON ONE SIDE, ONLY MOVING IN ONE DIRECTION. THE VALVE IS MADE FROM STEEL. TOOL LENGTH 1879 MM. OD: 127 MM. TOOL WEIGHT 260 KG. WHEN REQUIRED THE SFTTV CAN BE FIRED OPEN BY APPLIED ANNULUS PRESSURE OF ABOUT 500 psi.