Quality Control

Production & Installation

As product’s quality is our priority, the production of fuel pump plungers is very strictly controlled.

The fuel pump plungers must be produced in dust-free workshop. The fuel pump plunger’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.

fuel pump plunger’s Installation

When install fuel pump plunger, there are some precautions you need to know to prevent the fuel pump plungers working failure:

① Clean the fuel pump plunger 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 fuel pump plunger fall off.

② Use compressed air to clean the cleaning fluid attached to the surface of the fuel pump plunger after cleaning, and clean it up to the standard of usage. The details are as below:

● When installing the fuel pump plunger, make sure that each part of fuel pump plunger can be moved smoothly in it.

● If the fuel pump plunger is not installed in accordance with the standard, it may cause serious damage to the fuel pump plunger and fuel pump plunger.

Warranty

dieselpumpplunger.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, dieselpumpplunger.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 fuel pump plungers that sent to our customers. And when you meet product’s quality problem, we will help you to solve it until you are satisfied.

. When installing the valve stem, make sure that the valve stem and the bonnet must ensure that the valve stem can move smoothly in it. See as below:

. If the injector steel ball and the ball seat are not installed in accordance with the standard, it may cause serious damage to the injector valve assembly.

Warranty

Dieselcontrolvalveset.com has a mature business trading system and provides services such as replace, repair, refund etc,. to our customers, and Dieselcontrolvalveset.com also provides 6-12 months of warranty of each part sent to our customers. When you product’s quality problem, we will help you to solve it until you are satisfied.