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Butterfly valve installation, use and maintenance instructions—TWS Valve
1. Before installation, it is necessary to carefully check whether the logo and certificate of the butterfly valve meet the requirements of use, and should be cleaned after verification. 2. The butterfly valve can be installed at any position on the equipment pipeline, but if there is a transmiss...Read more -
Selection method of globe valve—TWS Valve
Globe valves are widely used and have many types. The main types are bellows globe valves, flange globe valves, internal thread globe valves, stainless steel globe valves, DC globe valves, needle globe valves, Y-shaped globe valves, angle globe valves, etc. type globe valve, heat preservation glo...Read more -
Common faults and preventive measures of butterfly valves and gate valves
The valve continuously maintains and completes the given functional requirements within a certain working time, and the performance of maintaining the given parameter value within the specified range is called failure-free. When the performance of the valve is damaged, it will be A malfunction wi...Read more -
Can globe valves and gate valves be mixed?
Globe valves, gate valves, butterfly valves, check valves and ball valves are all indispensable control components in various piping systems today. Every valve is different in appearance, structure and even functional use. However, the globe valve and the gate valve have some similarities in appe...Read more -
Where the check valve is suitable.
The purpose of using a check valve is to prevent the reverse flow of the medium, and a check valve is generally installed at the outlet of the pump. In addition, a check valve should also be installed at the outlet of the compressor. In short, in order to prevent the reverse flow of the medium, a...Read more -
Precautions for operating the valve.
The process of operating the valve is also the process of inspecting and handling the valve. However, the following matters should be paid attention to when operating the valve. ①High temperature valve. When the temperature rises above 200°C, the bolts are heated and elongated, which is easy to m...Read more -
The relationship between the specifications of DN, Φ and inch.
What is “inch”: Inch (“) is a common specification unit for the American system, such as steel pipes, valves, flanges, elbows, pumps, tees, etc., such as the specification is 10″. Inches (inch, abbreviated as in.) means thumb in Dutch, and one inch is the length of a thumb...Read more -
Pressure test method for industrial valves.
Before the valve is installed, the valve strength test and valve sealing test should be performed on the valve hydraulic test bench. 20% of low-pressure valves should be inspected randomly, and 100% should be inspected if they are unqualified; 100% of medium and high-pressure valves shou...Read more -
Wastewater Treatment Plant struggling in 3 vicious circles.
As a pollution control enterprise, the most important task of a sewage treatment plant is to ensure that the effluent meets the standards. However, with the increasingly strict discharge standards and the aggressiveness of environmental protection inspectors, it has brought great operational pres...Read more -
Certificates required for valve industry.
1. ISO 9001 quality system certification 2. ISO 14001 Environmental Management System Certification 3.OHSAS18000 Occupational Health and Safety Management System Certification 4.EU CE certification, pressure vessel PED directive 5.CU-TR Customs Union 6.API （American Petroleum Institute）Certific...Read more -
TWS Valve ‘s work back to normal,Any new order, contact us freely,Thanks!
Dear Friends, We are Tianjin Tanggu Water-Seal Valve Co.,Ltd,this week we begin to work from China New Year,and all work back to normal. Our company mainly produce rubber seated butterfly valve,soft seated gate valve,check valve,Y strainer,backflow preventer,we have CE ,...Read more -
How to Select Valve Body for Rubber Seated Butterfly Valve
You’ll find the valve body between the pipe flanges as it holds the valve components in place. The valve body material is metal and made from either carbon steel, stainless steel, titanium alloy, nickel alloy, or aluminum bronze. All but carbon stell are appropriate for corrosive environments. Th...Read more
