Briefing for Radiographic Testing
- Jul 24, 2019
- Hits: 538
Sometimes we will have orders requesting for Radiographic Testing (RT), say for API 600 Gate Valves, Butt-weld Ends, 8”, 2500 LB, as it will be applied in critical working condition. Then, what's...
Three designs of Gate Valve Stem
- Jul 17, 2019
- Hits: 347
Three different bonnet/stem design configurations are used in the gate valve construction: the lower threaded rising stem, the non-rising stem and the upper threaded bracket. The lower threaded lift bonnet/stem...
Water hammer effect and the preventive measures on pipeline
- Jul 10, 2019
- Hits: 118
Water hammer effect means that when the open valve is suddenly closed, due to the inertia of the pressure water flow, the shock wave of the water flow is generated and then cause the damage. This is the...
The Function of Valve Heating Jacket
- Jul 03, 2019
- Hits: 162
Many kinds of valves can have a heating jacket, such as gate valves, check valves and plug valves. A heating jacket is usually made of steel plate, and rolled as per body shape and installed around...
RAL 9010-Our New Painting Color of Ball Valves!
- Jun 28, 2019
- Hits: 112
Today, we would like to show you some photos of ball valves we just manufactured. The uniformed paint color is RAL 9010. We also have special requirement on the painting time and painting thickness. Do...
How should the valve be maintained during operation?
- Jun 20, 2019
- Hits: 55
The maintenance principles during valve operation are as follows: 1. Keep the outside of the valve and the moving parts clean to protect the integrity of the valve paint. The surface of the valve, the...
Valve End Connection Types, Screwed, Flanged, Welded
- Jun 14, 2019
- Hits: 3683
Screwed End Type Screwed end is simple connection method often used for small valves. This connection is usually made by machining the valve in and out of the end into tapered or straight pipe...
The Difference between Y Strainer and Basket Strainer
- Jun 12, 2019
- Hits: 4240
A pipe strainer can capture and remove the impurities from the pipeline by interrupting the process flow with a perforated plate or screen mesh. Normally speaking, There are Y-strainer and basket strainer....
Brief description of ISO15848 the Low Emission Test
- Jun 06, 2019
- Hits: 54
The low emission test is generally according to the standard ISO15848, and ISO15848-1 is a type test, where the number of switching times is relatively large, at least 205 times; ISO15848-2 is a product...
Brief introduction of fully welded ball valves in petroleum industry
- Jun 04, 2019
- Hits: 28
Fully welded ball valves, act as one of the most trusted valves in the petroleum industry, suitable for oil & gas production, processing and distribution. It can be applied in a wide range of...