ductile iron butterfly valve Tianjin

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Product Description:

2.FOB Tianjin: $8.6-$5390.1/set 
3.A/LT Wafer Butterfly Valve 
4.PN10/16, ANSI125/

Body is cast iron or ductile iron.


Disc is ductile iron or SS304 or SS316 or bronze or duplex steel.   


Seat is EPDM or NBR or PTFE or viton or other rubbers acc.to your requirements.






Design & Manutacture acc. to API609, MSS SP-67, BS5155, BS EN593.


Face to Tace acc. to DIN3202, API609, MSS SP-67, BS5155, BS EN558.


Top Flange acc. to ISO5211.


Pressure test acc. to API598, BS EN12266-1, DIN3230, BS5155.


Side Flange acc. to DIN2501, ANSI125/150, AS2129, BS4504, BS10D&E, JIS10K



1. Small in size and light in weight, easy instillation and maintenance. It can be mounted wherever needed
2. Simple and compact construction, quick 90 degrees on-off operation
3. Minimized operating torque, energy saving
4. Flow curve teeing to straight line, excellent regulation performance
5. Long service life, standing the test of tens of thousands opening/closing operations
6. Bubbles-tight sealing with no leakage under the pressure test
7. Wide selection of materials, applicable to various mediums

Materials List of DN40-DN350:

ductile iron butterfly valve Tianjin

Technical Data of DN40-DN350

ductile iron butterfly valve Tianjin
Materials List of DN400-DN600

ductile iron butterfly valve Tianjin


Technical Data of DN400-DN600


ductile iron butterfly valve Tianjin


Materials List of DN700-DN800

ductile iron butterfly valve Tianjin


Technical Data of DN700-DN800



ductile iron butterfly valve Tianjin


Materials List of DN900-DN1000

ductile iron butterfly valve Tianjin


Technical Data of DN900-DN1000

 ductile iron butterfly valve Tianjin

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Q:Valve should be strictly marked according to the direction of instructions and media flow direction to determine the installation direction,
Strength of the corresponding meaning is: the valve used to connect the original way of normal connection, such as silk mouth with the same specifications of the silk mouth connection. You can't connect the wires with different sizes.The pipe clamp is fixed in the counterpart application, from the interface at 200mm was measured with a ruler, when the nominal diameter is less than 100mm, the tolerance of sigma <1mm, when the nominal diameter is greater than 100mm, tolerance for a <2mm, but the length of tolerance is less than 10mm, no strong counterpart or eccentric pad counterpart.
Q:What is the difference between valve j941H-40 and j41H-40?
I see "valve design manual" category code table, in front of 9 of the electric drive, no 9 is the ordinary hand wheel drive.
Q:Ask about the valve of home improvement
There are two types of valves used for decoration:1. inlet pipe valve: general use of ball valve, can adjust the size of water.2. triangle valve for soft tube: used for water tank, basin, bathtub, toilet, water heater hose and water connection.The water valve is best fitted to facilitate overall or partial maintenance.
Q:What are the ten major brands of China's valves?
In the fluid piping system, the valve is the control element, its main function is to isolate the equipment and the piping system, regulates the flow, prevents the backflow, the adjustment and the excretion pressure. As the piping system selects the most suitable valve, it is important to understand the characteristics of the valve and the steps and the basis for selecting the valve. If you want to buy, you can choose the following aspects: 1. Select the valve according to the adjustment of medium parameters: two. According to prevent media backflow, choose the valve: three. According to the nature of the media, choose the valve. As for the brand if you can refer to the ten brands to buy China ten brands online, for example, Langao valve, a valve on the river, Amico, SF, card, open the valve on the market these are famous brands, you can refer to.
Q:What valve is the YQZ45X-16Q?
Specifically, YQ usually is the enterprise code, Z valve, 4 representative flange, 5 representatives of the dark bar, X (soft) rubber seal (gate coated with rubber material), nominal pressure 16 representative (PN) 1.6Mpa, Q on behalf of the valve body is made of ductile cast iron. If you add the valve bore (DN), it will be more detailed.
Q:What's the valve specification DN20?
You should be asking, how many inches?DN20 is 3/4
Q:How does the valve rust die?
Valve rust, and see what material, what type, the normal model iron, small, then change it directly. Large direct buy derusting lubricants, stainless steel just, then take the acid wash
Q:Remove the handle and lever the stem rotation with a wrench,
Monel alloy is mainly applied to the valve in the medium containing hydrofluoric acid.6, Hastelloy alloy is mainly used in the valve of strong corrosive medium such as dilute sulphuric acid7, titanium alloy is mainly applicable to all kinds of strong corrosive medium valveRecommendations for the GB standard of steel and ASME second A copies at American Standard. For American Standard steel can also see ASME B16.34
Q:Valve and pipe correspondence
If the valve from the opening and closing role, then the valve bore should be the same diameter with the pipe, big waste, small, increase resistance.If the role of the valve is adjusted, and that caliber will be different from the pipe diameter, this is not to reduce the cost of the problem, is a result of calculation, and this calculation results with flow, pressure drop and valve resistance curve.For example, control valve, usually smaller than the pipe diameter, such as pressure reducing valve, will be smaller than the pipe diameter to two.
Q:What does LBC mean in a valve?
LB and 800 are together. 800LB means 800 pounds of stress, and P should be PRESSURE.Valve (Famen) is a control component in the fluid delivery system. It has the functions of closing, adjusting, guiding, preventing reverse flow, stabilizing voltage, shunting or overflow and releasing pressure.Valves used in fluid control systems, from the simplest stop valve to a very complex automatic control system used in a variety of valves, a wide range of varieties and specifications. Valves can be used to control air, water, steam, a variety of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow.

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