• Ductile Iron Butterfly Valve all sizes System 1
  • Ductile Iron Butterfly Valve all sizes System 2
Ductile Iron Butterfly Valve all sizes

Ductile Iron Butterfly Valve all sizes

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
111 PCS
Supply Capability:
1000 PCS/month

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Standard or Nonstandard:

Standard

Structure:

Butterfly

Pressure:

Low Pressure

Power:

Gear Operated

Material:

Casting

Temperature of Media:

Low Temperature

Media:

Water

Port Size:

8

Place of Origin:

China (Mainland)

Model Number:

DI_ BV

Brand Name:

CNBM

 

Packaging & Delivery

Packaging Detail:wooden case
Delivery Detail:within 2 weeks after order

 

Specifications

Double Eccentric Flanged Butterfly Valve, Ductile Iron Butterfly Valve

Ductile Iron Butterfly Valves
Double Flanged Butterfly Valves With Disc Double Eccentric With Resilient Seat Conform to BS EN593 (BS5155)
Size:DN100-DN2000
Specification:
Nominal pressure (MPa)1.6
Testing PressureBody shell2.4
Seal1.76
Working pressure (MPa)1.6
Suitable temperature (°C)≤80
Suitable MediumWater
Technical and requirement
  1. Design, manufacture are according to standard of BSEN593-98(Butterfly Valves For Waterworks Purpose).

  2. The flange of the butterfly valve is according to PN1.6 Mpa flange of BSEN1092-2 for internal ductile iron flanges.

  3. Inspection is according to standard PrEN12266-3.(No Visible Leakage).

  4. The valves for PN1.0 MPa and PN2.5 MPa are also can be designed and manufactured.

Q: Proportional valve why than other small pipeline valves
3.8 valveGraphical representation of numbers, names, symbols3.8.1 angle valve at room temperature3.8.2 cold angle valve for low temperature use3.8.3 stop valve at room temperature3.8.4 ball valve often 9 temperature3.8.5 valve at room temperature3.8.6 butterfly valve at room temperature3.8.7 check valve flow from blank triangle to non empty triangle3.8.8 pressure reducing valve, small triangle for high voltage end3.8.9 throttling valve is needle valve3.8.10 three-way valve for normal temperature use3.8.11 four way valve used at normal temperature3.8.12 safety valve spring type safety valve3.8.13 trap actual drawing, you do not have to draw arrows3.8.14 inflator, cold box, little gas huff and puff, safe useValve for normal temperature of regeneration valve of 3.8.15 reverse stop valve3.8.16 reverse loading cold angle valve
Q: Standard and specification for pressure test of valves
(11) when the valve with drive device is tested and its tightness is tested, the sealing test shall be carried out by using the driving device to close the valve. For manual drive units, seal test shall also be done with the actuating closing valve.(12) the by-pass valve installed on the main valve after the strength test and the sealing test. The strength and tightness test of the main valve is carried out. The main valve should be opened when the closing member is opened.(13) iron valve strength test, the application of Pratia tapping valve and valve cover, check whether there is any leakage.(14) the valve test, in addition to the provisions of the plug valve to allow sealing surface oiling, other valves are not allowed in the sealing surface of the oil test.(15) when the valve pressure test, the blind plate on the valve pressure should not be too large, so as to avoid deformation of the valve, affecting the test results (cast iron valve if pressed too tight, will be damaged).(16) after the valve test pressure, should promptly remove the water and clean the valve, should also be prepared for the test record.
Q: What does the "PN" mark on the valve mean?
The valve will usually be marked with "DN.PN." these two signs,DN refers to the valve path, and PN refers to the pressure levelFor example: DN25, PN16Refers to the valve diameter of 25mm valve, the pressure is 16 kg (1.6Mpa)
Q: Air compressor out of the gas with what kind of valve control okay, globe valve or other?
If the factory uses, it is recommended stainless steel ball valve
Q: 1) the valve plate, valve gate valve, the difference (my personal understanding is that if it is on the ball, called the valve, if the valve is called the gate, is actually a meaning in different valve called, please help me understand it right?)2) valve clack. What's the spool?3) the valve seat is welded inside the valve, or is it directly installed inside without welding?4) when opening the valve, if the valve seat is not welded, then, under the pressure of the medium, why not open the seat?.5) excuse me, pressure self sealing (my personal understanding is that when the valve is closed, the valve plate and valve seat depend on the pressure of the media, and they fit together to seal the effect
To answer your question was the top valve is not open on the thread of an analogy between ordinary wood screws and nails is a straight out of another can only rely on the screwdriver to turn out the cut-off valve is from the mechanical analysis of text as a specific principle is not specific
Q: What are the advantages and disadvantages of this method? Are there any other ways to adjust the flow rate?
With the advantages of the pump outlet valve adjustment, 1, you can control the pump outlet pressure, 2, you can control the motor current is not more than the process conditions, 3, control motor power, to ensure the normal operation of the pump.
Q: What does 1/2 mean in valve specification?
1/2 is the representative of American Standard size is DN15.
Q: In the decoration, I do not know where to get the valve, what kind of products should be bought?It is hard to fit the valve in the water inlet of the house. If not, can you? Will it have any effect on future use?
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: Which valve can play a good regulatory role?
A wide range of valves, the function is different, although like conventional butterfly valve, ball valve can play a regulatory role, but their role is not linear, so if you need to adjust the precision of the valve, it is best to select the control valve.
Q: How does the valve open?
This is a three pass, not a valve. It doesn't open often or often closes and there is no opening or closing. Can change the same caliber of the valve, you can use the handle switch.

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