Quality Control

At heuipump.com, we place the highest priority on the quality of our HEUI pumps. In our Quality Control section, you’ll find comprehensive details about our production procedures, installation methods, and warranty services, highlighting our dedication to upholding the highest standards for every product we offer.

Production & Installation

As product’s quality is our priority, the production of HEUI pumps is very strictly controlled.

The HEUI pumps must be produced in dust-free workshop. The HEUI pumps’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.

HEUI Pumps Installation

When install HEUI pumps, there are some precautions you need to know to prevent the HEUI pumps working failure:

① Clean the HEUI pumps 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 HEUI pumps fall off.

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

● When installing the HEUI pumps, make sure that each part of HEUI pumps can be moved smoothly in it.

● If the HEUI pumps is not installed in accordance with the standard, it may cause serious damage to the HEUI pumps and injector.

Warranty

heuipump.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, heuipump.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 HEUI pumps that sent to our customers. And when you meet product’s quality problem, we will help you to solve it until you are satisfied.