DUCTILE IRON BUTTERFLY VALVE DN1900 High Quality China

DUCTILE IRON BUTTERFLY VALVE DN1900 High Quality China System 1

DUCTILE IRON BUTTERFLY VALVE DN1900 High Quality China System 2

DUCTILE IRON BUTTERFLY VALVE DN1900 High Quality China

Ref Price:: $600.00 - 1,200.00 / set

Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 200 set

Supply Capability:: 6000 set/month

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Quick Details

Standard or Nonstandard:	Standard	Structure:	Butterfly	Pressure:	Medium Pressure
Power:	Manual	Material:	Stainless Steel	Temperature of Media:	Medium Temperature
Media:	Gas	Port Size:	DN40-1200	Place of Origin:	China (Mainland)
Model Number:	D71	Brand Name:	CNBM

Packaging & Delivery

Packaging Detail:	PLYWOOD OR WOODEN BOX
Delivery Detail:	15--30 DAYS

Specifications

Wafer Butterfly Valve
1.MSS/API/BS design.
2.Size: DN40-1200.
3.Working pressure: PN10/16/25.
4.ISO9001/ABS/CCS/DNV/CE

Quick Details

Standard or Nonstandard:	Standard	Structure:	Wafer	Pressure:	Medium
Power:	Manual	Material:	Cast iron, Ductile iron, WCB, SS316,C954	Temperature of Media:	Normal
Media:	Water, Oil, Gas	Port Size:	DN40-DN1200	Place of Origin:	China
Brand Name:	CNBM	Certification:	ISO9000, CE,CCS,DNV,ABS,TS

Packaging & Delivery

Packaging Detail:	Each Piece into one bubble plastic bag, several pcs into one Wooden crate or according to customers requirements
Delivery Detail:	within 30 days

Specifications

MSS/API/BS design.
Size: DN40-1200.
Working pressure: PN10/16/25.
ISO9001/ABS/CCS/DNV/CE.
Flange: AWWA/BS/EN etc.

Our product features are as follows:

1. Newly developed facilities ensure high and stable quality.

2. Enable to supply UL/FM valves.

3. Experienced technology

4. Excellent after-sale service to satisfy customers.

5. Sufficient capacity ensures prompt delivery.

6. Continuous quality improvement and new designs development.

7. Reasonable and stable price

8. Meets different countries standards, such as ANSI,DIN,BS etc.

The main points

1.Recommend to use butt welding flange,Do not use flat welding flange because steel pipe can easily meetdics to affect opening and closing freely disc if steel pipe enter flat

welding flange;

2.The inner diameter of flange can not be too small or too big and must confirm the dimension of flange sothat the disc can turn free;

3.For advoding scalding the seat ,Do not weld flange after the butterfly valve was installed in pipe.

API 609 Table 1

ISO 5752 Series 20

EN 558 Series 20 (DIN 3202 T3 K1)

BS 5155 Series 4

Flange accommodation:

ANSI B16.1 Class125/150

AWWA C207

MSS SP44 Class150

DIN 2501 PN6/10/16
EN1092-2 PN6/10/16
BS10 Table D/E

JIS B2220 5K/10K/16K

AS4087 PN14/16

Top Flange:

ISO5211

Tightness check:

API 598

ISO 5208,

EN12226-2

Pressure Temperature Ratings
working pressure	16bar/25bar
testing pressure	shell:24bar/37.5bar
testing pressure	seal:17.6bar/27.5bar
working temperature	-20 degree to 110 degree EPDM seat
working temperature	-10 degree to 80degree NBR seat
suitable media	Water, Oil& Gas.

DUCTILE IRON BUTTERFLY VALVE DN1900 High Quality China

Q:What do you mean, handle, butterfly valve, hard back and soft back?: Hello, soft sealing butterfly valve is generally divided into skeleton, seat and frameless valve seat, the skeleton of the general material: resin, aluminum, iron.. Etc.. With back seat is on the back of the vulcanized rubber, without skeleton, valve seat is rubber.

Q:Butterfly valve in the use of the difference? Caliber?: Role of butterfly valveButterfly valve is to use disc type to open and close parts reciprocating reciprocating about 90 degrees to open, close or adjust the flow of medium valve. The butterfly valve has the advantages of simple structure, small volume, light weight, material consumption, installation of small size, the driving performance of torque is small, simple operation, rapid, high chemical corrosion, and can also have good flow control function and closure characteristics, the use of butterfly valve is very extensive. Its varieties and quantities are still expanding, and the development of high temperature, high pressure, large caliber, high sealing, long life, excellent regulation, as well as multi-function development of one valve. Its reliability and other performance indicators have reached a high level. Disadvantages, there is a certain resistance to the medium.Gate valves are more used in steam pipes and large diameter water supply pipelines, because of the general requirements of fluid resistance is small, the use of gate valve.Valve is hand wheel rotation, stem upward movement. Flow is not the same, the gate valve requires full open. Need a higher installation space, the valve sealing surface has a certain self sealing capacity, its spool by the media pressure closely with the valve seat sealing surface contact, to achieve tight leakage. Wedge gate valve spool angle is generally 3~6 degrees, when forced to shut down excessive or temperature changes of the valve core is easy to die. Therefore, high temperature and high pressure wedge gate valve, in the structure have taken certain measures to prevent spool stuck. The valve in the opening and closing valve and valve seat sealing surface contact and mutual friction is always so easy to wear sealing surface, especially in close off the valve, the valve before and after the great pressure, sealing surface wear is more serious.

Q:What are the classification criteria for pneumatic butterfly valves?: Pneumatic flange butterfly valve, pneumatic flange butterfly valve, this product is made up of rubber sealed butterfly valve and carbon steel or stainless steel valve plate and valve stem. Suitable temperature is less than or equal to 80 to 120 DEG C, such as food, chemical, petroleum, electric power, textile, papermaking, water supply and drainage, gas pipes to regulate the flow and closure of the role of media.Pneumatic control valve is a valve (valve plate) around the rotating fixed axis perpendicular to the channel, which is composed of double or single acting piston (spring reset type) pneumatic actuator and butterfly valve, a rotary type high performance adjust or cut off valves, electric, pneumatic valve positioner or electromagnetic valve, air filter regulator, limit switch (valve position), can be realized on the fluid medium in the pipeline and process to adjust the proportion of the two cut off control, automatic control to achieve the parameters of the fluid flow, pressure, temperature, liquid level etc..

Q:How can one - way sealed butterfly valves and two-way sealed butterfly valves be distinguished?: Two way hard sealing butterfly valve:Two way butterfly valve on the valve body usually does not indicate the direction of the media arrow sign, in the design of two-way sealing butterfly valve stem force is greater than one-way butterfly valve stem. The same diameter, pressure butterfly valve, two-way sealing butterfly valve rod diameter than one-way sealing butterfly valve stem diameter. At the time of installation, the butterfly plate can face or back the direction of the medium, without considering the flow direction of the medium.

Q:What is the national standard for clip butterfly valves?: GB/T 12238-2008 "flange and clip connection elastic seal butterfly valve"GB/T 26144-2010 flanged and clip on steel lined fluoroplastic butterfly valvesJB/T 8527-1997 "metal sealed butterfly valve"

Q:i have a slightly small mitral valve leak in my heart. my cardiologist say nothing to worry about, but i am not sure. can some one explain if it would eventually lead to some complications?: I have Mitral Valve Prolapse, and slight regurgitation. If your cardiologist says not to worry, I wouldn't worry. Mitral Valve prolapse just means you have a slight deformity of the bicuspid valve. It doesn't close correctly. It's not a disease, or anything like that, just a slight deformity. The symptoms are annoying. You may or may not have palpitations, slight sharp chest pain sometimes, dizziness, fatigue, and anxiety from it. You must have it checked yearly to make sure it's not progressing. I have had it since I was born, and now I am 28, and it has not progressed at all. MILLIONS of people are walking around with it, and don't even know it. It's not really a big deal. However, it does have the potential to worsen and you may or may not need a new valve. But that normally happens when you're older, in your 50's or up. Don't worry about it.

Q:What do you mean by manual butterfly valve DN100 D341X-10?: DN100 refers to the inside diameter of the butterfly valveD stands for butterfly valves3 represents the turbine drive4 represents the flange connectionThe 1 represents straight throughX is the representative of the Dengqen rubber seal10 represents the pressure of 1.0Mpa (10 kg)Butterfly valve (English: butterfly valve) refers to the closure of parts (valve or butterfly plate) for the disk, around the valve shaft to achieve rotation and closure of a valve, the main cut off on the pipe and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation. Butterfly valve is fully open to fully closed is usually less than 90 degrees, butterfly and butterfly stroke itself has no self-locking capability, in order to position the disc to install the valve stem on the worm gear. Using worm gear reducer, not only can the butterfly plate have self-locking ability, so that the butterfly board stops at any position, but also can improve the operation performance of the valve.

Q:Which is expensive, butterfly valve?: The same material and caliber, butterfly valve structure is simple, less wood, the price is much lower than the gate valve, especially for clip type butterfly valve.

Q:Should I connect the butterfly valve before and after the pump? Or gate valve?: Personally believe that import and export butterfly valve or gate valve can be, or other valves. One principle, easy installation and easy maintenance.As for how much pressure can be selected according to the size of the pump flange to set the general small caliber pump are 1 and 1.6 pressure general, unless you are a super high pressure multi-stage pump, generally 1 flanges fully meet the requirements of pump working pressure is generally not too high, living above the water temperature will not exceed 40 C, so you choose the space is still very large.

Q:What type of valve does the butterfly valve D343X DN300 represent?: The GD343X model butterfly valve is the pipe flange butterfly valve. The J shaped elastic precision of the sealing ring and the three eccentric multi-level metal seal structure, is widely used in medium temperature less than 425 DEG C, petroleum chemical industry, metallurgy, electric power and water supply and drainage and municipal construction and other industrial pipelines, adjust the flux and set off fluid.

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