Quality Control

Production & Installation

As product’s quality is our priority, the production of DRV pressure regulating valves is very strictly controlled.

The DRV pressure regulating valves must be produced in dust-free workshop. The DRV pressure regulating valve’s production procedures include pre-heat treatment, post-heat treatment and CNC surface treatment. In each produce process, we strictly check every part’s quality and exclude bad quality parts so as to make sure our products meet usage standard.

DRV pressure regulating valve’s Installation

When install DRV pressure regulating valve, there are some precautions you need to know to prevent the DRV pressure regulating valves working failure:

① Clean the DRV pressure regulating valve in an ultrasonic cleaner for 3-5 minutes before installation, so as to make the stains, dust, rust-proof oil oxides, paraffin base, naphthenic base, intermediate base,salt, lead naphthenate, zinc naphthenate, sodium petroleum sulfonate, barium petroleum sulfonate, calcium petroleum sulfonate, tallow diamine trioleate, rosinamine on the surface of the DRV pressure regulating valve fall off.

② Use compressed air to clean the cleaning fluid attached to the surface of the DRV pressure regulating valve after cleaning, and clean it up to the standard of usage. The details are as below:

● When installing the DRV pressure regulating valve, make sure that each part of DRV pressure regulating valve can be moved smoothly in it.

● If the DRV pressure regulating valve is not installed in accordance with the standard, it may cause serious damage to the DRV pressure regulating valve and injector.

Warranty

dieseldrvvalve.com has a mature business trading system, and as we all know, good service is one of main reasons to makes long term business cooperation with customers. Therefore, dieseldrvvalve.com provides services such as replace, repair, refund etc. to our customers, as well as 6-12 months of warranty period for each patch of DRV pressure regulating valves that sent to our customers. And when you meet product’s quality problem, we will help you to solve it until you are satisfied.