Quality Control

Home / Quality Control

How Do We Do Inspection For The Materials

Making sure the finished products of vacuum valves and component's with less trouble and more safety, Ruijia is striving to a perfect quality inspection system.

Visual Testing

Ultrasonic Cleaning

3D Design

Cleaning and Visual Testing

PMI Material Testing

Helium Leakage Testing

Dimension Inspection

Wall Thickness Test

Laser Marking

For Raw Materials

Material control from raw materials. For raw material checking, we check 100% by chemical liquid. Any property mistakes would be rejected.
Sand hole inspection after raw materials are machining before polishing.
Carbon component report can be provided if needed
Mechanics test report can be provided if needed

For New Products

2nos of new samples to be checked against technical drawing. Testing report is provided to customers before bulk production.

For Finished Products

For valves, pressure testing and temperature testing is required for each valve.
After we get the finished products, we do helium leakage test, and check surface roughness, thickness equality, roundness, size measurement and sand holes again.
For all finished products, the checking quantity is not less than 10% of total quantity.
Before shipment, we check for the quantity of each product in order to find out any missing quantity or wrong product.
Finally, we use strong package to prevent the products from any damages.

What Machines We Use To Inspect The Materials

To Check The Chemical	Stainless Steel Spectrometer
To Check The Surface Roughness	Ra Roughness Instrument
To Check The Roundness	Vernier Caliper
To Check The Thickness	Micrometer, Thickness Gauge
To Check The Straightness	Horizontal And Vertical Scale
To Check The Pressure	Pressure Testing Machine
To Check The Leaking	Hydraulic Pressure Machine

Forging/Finishing/Sales One-Stop Service

Forging Factory1

4 production lines, 160 tons, 300 tons, 400 tons, 630 tons equipment forging 1--10 inch joints，flanges, adapters,etc

Forging Factory2

4 production lines, 400 tons, 630 tons, 800 tons, 1000 tons forging machines mainly forging butterfly valve bodies, check valve bodies, unions, hose joints and other non-standard parts

Punching Factory

4 production lines with a total production area of 50,000 square meters! The company's products are exported to more than 70 countries and regions!

Hardware Facilities

We have high-precision CNC processing equipment from home and abroad, large processing equipment, horizontal machining center, five-axis machining center, large lathe, gantry pentahedron machining center. We have three-coordinate measuring machine, projector, helium leak detector and other measuring instruments. The company is good at the fine processing of stainless steel and aluminum, and has rich experience in the processing and manufacturing of cavities and pipelines in semiconductor, liquid products and photovoltaic industries.

Large Gantry Machining Center 420032001400x1	Cnc Machine Tools 1600*800x30	Cnc Machine Tools 1200*1500x3
Various Cnc Machine Toolsx1	Various Machining Centersx6	Various Tig Welding Machinesx2
Helium Leak Detectorx1	Three-Coordinate Measuring Machinex9	Material Analyzerx1