The Function and Service Life of Butterfly Valves
- Dec 10, 2018
- Hits: 236
It is necessary to be aware of what the butterfly valves are designed for. Is it used to connect and cut off the pipeline, or to regulate and control the flow and pressure of the medium in the pipeline?...
Bellows Sealed BW Gate Valves of 1 inch & 1500lb exported by Dervos
- Dec 10, 2018
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We exported 7 pcs of 1 inch – 1500 LB-Gate Valves with bellows sealed last week. Bellows are Inconel 625 with min temp series of 485℃. Due to hardness of the material itself and the high pressure,...
Specification information of Sleeve Type Soft Sealing Plug Valves
- Dec 05, 2018
- Hits: 27
A DIN sleeve type soft sealing plug valve is suitable for the nominal pressure of PN1.6 - 16 mpa, working temperature of – 29 - 180 ℃ in the petroleum, chemical, pharmaceutical, chemical fertilizer,...
ADNOC's investment plan in refining & petrochemical complex in Ruwais
- Dec 05, 2018
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ADNOC announces a $45 billion investment plan and hopes to become the world's leading downstream company. ADNOC will create the world's largest refining and petrochemical complex in Ruwais, UAE....
Application of Three Eccentric Two-Way Metal Seal Butterfly Valves
- Nov 30, 2018
- Hits: 32
At present, a butterfly valve, as a component used to realize the on-off and flow control of pipeline system, has been widely used in petroleum, chemical industry, metallurgy, hydro-power and other fields....
Valve Standards Defined by the American Petroleum Institute (API)
- Nov 30, 2018
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API SPEC 6D Specification for Pipeline Valves, API Specification 6D is an adoption of ISO 14313: 1999, Petroleum and Natural Gas Industries-Pipeline Transportation Systems-Pipeline Valves. This International...
A milestone for energy governance as South Africa joins IEA Family
- Nov 26, 2018
- Hits: 10
CAPE TOWN -- HE Minister Jeff Radebe, minister of energy of the Republic of South Africa, and Dr. Fatih Birol, executive director of the International Energy Agency, jointly announced South Africa's...
The basic information about angle valves
- Nov 26, 2018
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What is an angle valve A manually operated valve with its outlet opening oriented at right angles to its inlet opening, which is used for regulating the flow of a fluid in a pipe. Angle valves' function...
New materials for the products of Dervos
- Nov 20, 2018
- Hits: 27
In October, we have just shipped some pieces of wafer check valves in DN100, PN100 for our customers in Europe, and what's special is that they are in SS316Ti material, another new material in our...
Reasons and treatments when valves can not be closed tight
- Nov 20, 2018
- Hits: 74
During the use of the valve, there are often some troublesome problems, like the valve cannot be closed tight. If it is not tight, firstly, confirm whether the valve is well closed. If it is well closed,...