All kinds of : ductile iron valves System 1

All kinds of : ductile iron valves

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 PCS

Supply Capability:: 1000 PCS/month

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Specifications

valves
1)DIN3352/BS5163/API600
2)Pressure:PN10/16
3)Dimension:2'-36'

Technical Specifications:

Design: EN593
Face to face: EN558-1

Flange drilling: EN1092
Upper flange connection: ISO 5211

Gate Valves, Check Valves, Butterfly Valves, Strainers, Fire Hydrants and Full ranges of Pipeline products & accessories
DIN / BS / EN / API / ANSI / AWWA Standards available with different Material & Specs
Competitive Price, Reliable Quality & On-time Delivery

Reliable Quality Assured by ISO 9001 2008
Competitive Price by Strict Cost Control
On-Time Delivery by All- Process Production Plan and Control

A group of highly experienced technical engineers is right here waiting for any of your requests.
Professional softwares are used for design and test.
We are able to use most of the world-wide engineering softwares, including AUTO Cad, Pro Engineer, Solid Works and etc.

Q: High and low pressure valve is how to distinguish?: Ultra high pressure valve nominal pressure PN = 100MPa; high pressure valve nominal pressure PN10.0MPa ~ 80.0MPa; medium pressure valve, nominal pressure of PN2.5MPa ~ 6.4MPa; low pressure valve, nominal pressure PN is less than or equal to 1.6MPa

Q: What is the valve?: The definition of a valve "valve" is defined in the fluid system, used to control the direction of the fluid, pressure, flow device. A valve is a device that flows or stops the medium (liquid, gas, powder) in a pipe and equipment and controls its flow. Valve is the control component of pipeline fluid transportation system. It is used to change the passage section and medium flow direction, and has the functions of diversion, cut-off, adjustment, throttling, check, diversion or overflow, pressure relief, etc.. For fluid control valves, valve from the simplest to the most various valves automatic control system used in complex, its many varieties and specifications, the valve nominal diameter from industrial piping and instrumentation valves tiny tolarge diameter 10m valve. The valve can be used for the control of water, steam, oil, gas, mud, all kinds of corrosive medium, liquid metal and radioactive fluid and other types of fluid flow, the valve working pressure from 0.0013MPa to 1000MPa ultra high pressure, working temperature from ultra low temperature to high temperature of 1430 DEG -269. Control valve can be a variety of transmission methods, such as manual, electric, hydraulic, pneumatic, worm gear, electromagnetic dynamic, electromagnetic hydraulic, electric hydraulic, pneumatic and hydraulic, gear, bevel gear drive; in pressure, temperature or other forms of sensor signals under the action according to the requirements. Or do not rely on a simple sensor signals to open or close the valve on the drive or automatic mechanism to make the opening and closing parts for lifting, sliding, rotating or turning motion, thus changing the size of the flow area to achieve its control function.

Q: What does the valve specification "3/4CL150" mean?: Size: DN20 pressure rating: 150 pounds American Standard

Q: How do you calculate the valve wall thickness, pressure, and other valve design calculations in a spreadsheet?: The valve wall thickness is the standard valve check directly in the relevant standard, for insert grade valves need to use interpolation method to calculate the valve wall thickness, actually don't need what difficult to complete in EXCEL software.

Q: Is the filter also valve?: Filters are generally used in the pipeline, are ancillary products, strictly divided, it does not belong to the valve category

Q: What should be checked before using the valve?: 5, check valve disc or spool movement is flexible and accurate, no bias, displacement or skew phenomenon6, spring-loaded safety valve should be sealed, positioning lever type safety valve should have the weight of the device7, rubber lining, lining enamel and plastic lined valve body surface should be smooth, the lining layer and the substrate firmly, no crack, blister defects, using high frequency electric spark generator to inspect the lining surface, not found in liner breakdown (white flash phenomenon) is qualified8, the valve flange sealing surface should meet the requirements, and shall not have radial scratches

Q: What does the valve QF mean?: Valve type, one of the contents, Q refers to the ball valve, F refers to the F-4 seals.

Q: How to carry out the valve strength test and air tightness test?: Refer to the GB/T13927 or ISO5208 standards and need to pass it to you

Q: How to better maintain the valve?: We should keep the valve cleanWe should regularly check and maintain the integrity of the valve the other components. As a fixed hand wheel nut fell off, to be filled and can not manage, otherwise it will grind the valve stem upper garden square, gradually lost with the reliability, and even can not startWe do not rely on the valve support other heavy objects, do not stand in the valveThe stem, especially the threaded part, to regular cleaning, the dust has been soiled should be replaced with a new lubricant, because the dust contains hard debris, easy to wear thread and stem surface, affect the service life