DNT(Non-Destructive Testing)

VT (Visual Testing)

Visual testing is one of the most widely used test method to investigate the surface aspect and observe potential discontinuities or failures, which should be detected under proper lighting conditions, monitored by an instrument able to measure the light intensity, the light meter.

UT (Ultrasonic Testing)

Ultrasonic testing is often performed on raw materials but can be also performed on critical areas to have an accurate and reliable detection of material discontinuities: an ultrasonic transducer (Ultrasound test instrument) sends high-frequency vibrations into a material section to find discontinuities which, if found, reflect the vibrations back to the transducer; the result is translated and displayed on an oscilloscope to reveal their extent and location.

PT (Penetrant Testing)

High temperature valves performance can be tested at elevated temperatures up to 660°C (1220°F) to simulate operating conditions and prove that selected material and construction are suitable for that critical application. All operators are experienced and trained to conduct this test with appropriate safety precautions.

Fugitive emission testing

Penetrant testing , also called Liquid or Dye Penetrant Inspection, is generally used to locate and detect surface defects (cracks, porosity, leaking points) on non-ferrous and ferrous materials: testing fluid (penetrant) penetrates into the surface-breaking discontinuities and, after adequate penetration time, a developer should be applied: the penetrant is drawn out by capillary action so that an invisible crack becomes visible.

MT (Magnetic Testing)

Magnetic testing is generally used to locate and detect surface sub-surface discontinuities in ferromagnetic materials. The area to be tested is magnetized by direct electric current transmission by a magnetic joke; in case of discontinuity, the magnetic field flowing through the specimen is interrupted and leakage field occurs, iron particles are then applied to the detected area and cluster to form an indication directly over the discontinuity. The indication can be visually detected under proper lighting conditions.

PMI (Positive Material Identification)

Positive Material Identification is the elemental identification and quantitative determination in percentage of metallic alloys, without regard to form, size and shape, performed by highly sophisticated portable X-Ray Fluorescence (XRF) Spectrometer in our possession, Niton XLT 898.

Hardness Testing

Hardness testing can be performed with a portable Rockwell tester to determinate the hardness of a material.

Ferrite Testing

Ferrite testing is the ferrite content analysis performed on austenitic stainless steel and duplex valve components to allow evaluation of material corrosion susceptibility, mechanical properties, service suitability and reliability. It can be performed by portable digital Feritscope as, for example, our Fisher FMP30, for rapid and accurate analysis.
Sanqiao Industry Zone, Oubei, Yongjia County, Wenzhou City, Zhejiang Province, China 325105
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