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What is checked before a valve is crated

Three rounds of checks: the material, the parts while they are made, and the finished valve.

Materials

Castings, bar and rubber are checked for composition and mechanical properties before they are machined.

Optical emission spectrometer — Optical emission spectrometerChemical composition of metals

Tensile testing — Tensile testingPreparing a specimen on the testing machine

Impact testing — Impact testingPendulum impact machine and its control unit

Metallographic microscope — Metallographic microscopeStructure of cast iron and alloys

Portable hardness tester — Portable hardness testerHardness of bodies and machined parts

Shore hardness stand — Shore hardness standHardness of rubber seats and seals

Parts in process

Machined parts are measured, and castings and welds are examined for flaws that cannot be seen from outside.

Dimensional check — Dimensional checkMeasuring a machined part with a caliper

Ultrasonic inspection — Ultrasonic inspectionExamining a large machined valve body

Penetrant inspection — Penetrant inspectionApplying penetrant to a valve component

Ultrasonic thickness gauge — Ultrasonic thickness gaugeWall thickness of castings

Handheld material analyser — Handheld material analyserChecking a part on the shop floor

Salt-spray chamber — Salt-spray chamberCorrosion testing of coatings

Finished valves

Assembled valves are tested under pressure. Flow, torque and function have their own rigs.

Large valve test bench — Large valve test benchHorizontal clamping bench behind safety barriers

Water test hall — Water test hallPipe loops, actuated valves and water tanks

Hydraulic performance facility — Hydraulic performance facilityPumps, pipe loops and valve stations

Torque and life-cycle fixture — Torque and life-cycle fixtureA butterfly valve mounted for cycling

Plastic valve pressure test — Plastic valve pressure testUnion ball valves in an automatic test machine

Balancing valve test system — Balancing valve test systemTest piping with gauges and fittings

Documents and witnessed tests

Projects ask for different paperwork. Tell us what yours requires when you enquire, and we confirm what can be supplied with the quotation.

The test reports and inspection documents your project specifies
Any test you or your inspector want to witness at the factory
Third-party inspection, if your client appoints an agency
Marking, tagging and packing requirements

Certified management systems

Certified by ACM International Certification Limited. The certificates are valid until 10 February 2028.

ISO 9001:2015 certificate

ISO 9001:2015Quality managementCertificate 25CN34514497QView certificate

ISO 14001:2015 certificate

ISO 14001:2015Environmental managementCertificate 25CN34514498EView certificate

ISO 45001:2018 certificate

ISO 45001:2018Occupational health and safetyCertificate 25CN34514499SView certificate

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