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Copper valve common faults and maintenance

Release date:2015-08-07Views:4650

Copper valve opening and closing jamming, inflexible or does not open and close properly, and even unable to continue opening and closing, mainly due to the stem and other parts of the jamming, jamming mainly between the stem and packing. In general are:

After the copper valve stem packing gland skew touch

- Processing: Install

Copper filler valve installed incorrectly or too tight

- Treatment: packing pretension, relax appropriate filler.

Copper valve stem and packing gland bite

- Processing: Replace or repair.

Bite or bites between the copper valve parts

- Treatment: properly lubricated stem.

Copper valve sealing surface scratches, abrasions and bite stem beam part stem threaded portion bites.

After the copper valve sealing surface polishing with abrasive grains embedded in the sealing surface, not cleaned, resulting in the sealing surface scratches; after some by the use of abrasive particles in the scouring medium abrasive and sticky discharge the sealing surface, the copper valve switch, causing abrasions.

- Treatment: rational use of abrasive, the sealing surface must be cleaned after grinding.

Copper valve medium loot or slag not cleaned, resulting in abrasions.

- Processing: Re-clean.

Copper valve stem and packing gland, packing pads grazing, followed by the medium in the medium containing boron, crystallized form after escaping the hard particles in the filler stem contact surface strain when switching the stem surface.

- Processing: Install, adjust with the gap parts and improve the stem surface hardness.

Copper valves have contamination at the trapezoidal thread swag, poor lubrication conditions; stem and related parts deformation

- Processing: Clear stolen goods, high-temperature lubricant coated copper valves timely; deformation parts amendment.

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