DUCTILE IRON BUTTERFLY VALVE DN1800 System 1

DUCTILE IRON BUTTERFLY VALVE DN1800

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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.

Working pressure:

10Bar/16Bar/25Bar

Face-to-face:

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 DN1800

Q:What's the difference between a butterfly valve and an eccentric butterfly valve? What is the difference in field applications?: Eccentric butterfly valve and ordinary butterfly valve, when the butterfly valve is opened, the eccentric butterfly valve sealing surface will reduce great wear, in the opening, the disc will leave the valve at the first time the sealing surface!

Q:D what's the meaning of "one 71x one 1 butterfly"?: According to the provisions of the JB/T 308-2004 valve type programming method:D== butterfly valve7== clip typeLinetype in 1==X== sealing surface material: Rubber-1== pressure rating: 1.0MPa

Q:Have an iron block, aluminum heads, solid roller lifters, Jessel rocker shafts, what should my valve clearances be cold, and hot??: Because you apparently have a built engine here rather than a factory assembly which simply has solid lifters, and the data you have is either inconclusive or conflicting then I will recommend the following procedure: Assemble them cold and adjust to Intake .010 and exhaust .020. After firing up the engine, adjust the carb, if it is so equipped, to a smooth rich idle and run it in for a couple of hours mixing idling with moderate load and a few full throttle pulls through 2nd gear to seat the rings. Bring it back into the shop good and hot and set the valve clearances at .008 intake and .016 exhaust hot. After adjusting the valves readjust the idle to 700 RPM and set the timing. initially set the timing at about 2 degrees BTDC until you hav run in the engine, If you are without clear specifications for timing use a vacuum gauge and play with it between 2 and 10 degrees BTDC with the vacuum advance disconnected and plugged, you are looking for the highest vacuum at idle as a starting point. Run it hard including lugging it in high gear at around 2500 to 3500 rpm at or near full throttle, if you are getting spark knock back it down 2 degrees at a time until it does not knock when lugged. If you get no spark knock when lugging it you might try advancing the timing 2 degrees above the vacuum indicated optimal setting but do not go beyond that point. After setting the valves and timing readjust the carburetor to the best lean idle and set to 650 to 700 rpm depending on where it feels comfortable. In the old days a lot of this was done totally by ear - hence the term engineers. Today I think most holders of that revered title do not have a clue where the term came from.

Q:Can the inlet and outlet of butterfly valve be reversed? Why? What will happen if the reverse gear is installed?: Our factory butterfly valve has two-way sealing, can be installed, and will not leak. If there is an arrow above the butterfly valve is one-way seal, that is, can not be installed. One way sealing will cause leakage. If you have any other questions, you can bring them up. Let me help you with that

Q:Function of signal butterfly valve in fire sprinkler system: The signal butterfly valve is generally installed in two parts: floor level, dry pipe, flow indicator front end, trunk pipe, wet alarm valve, front end.Floor level pipe installation is a function of the signal valve, when the floor spraying system needs repair, close the valve, open the end of the floor drain, emptying the water in the spray system, maintenance; two is the sprinkler system is not allowed inside water, when the butterfly is closed, will transmit a signal to the the fire alarm system, fire alarm system receives a monitoring signal (so called signal butterfly valve), fire sprinkler system that the floor is anhydrous state, fast repair.Wet alarm valve at the front of the signal butterfly valve with the main floor of the main role of the butterfly valve, first, maintenance, and two is the prompt sprinkler system, there is a signal butterfly valve closed, should be repaired as soon as possible.

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:What is the working principle of the electric butterfly valve, and what's the difference between the butterfly valve and the butterfly valve?: Signal butterfly valve is generally can achieve full clearance of a valve opening electrical signal output, the general requirements of the electrical signal isPassive electric shock signals are mostly used in fire fighting systems, such as the need for valve position feedback;The electric butterfly valve is not necessarily the signal butterfly valve, because the electric butterfly valve does not have the requirement of the source contact.

Q:What's the difference between cut-off valve, gate valve and butterfly valve? What's the difference in the working principle?: Stop valve is closed parts (valve) moving along the centerline of the valve seat, the valve stem to open or close the trip is relatively short, but very reliable cut off function, and because changes in the valve seat and the valve stroke is proportional to the amount of adjustment is also very suitable for convection.Check valve: also known as counter flow valve, check valve, back pressure valve or one-way valve, such valves are dependent on the flow of the pipeline itself flow force and automatically open and close, belonging to an automatic valveButterfly valve: it is a kind of valve which uses disc type opening and closing parts to turn back and forth about 90 degrees to open, close and adjust the passage of fluidGate valve is closed parts (RAM) along the vertical axis of the mobile channel valve in the pipeline, used primarily as a medium cut that open and close, generally do not have to do with traffic regulation, it can be used for low temperature and low pressure can also apply to high temperature and high pressure, and according to the different valve material is different in various media. The valve, the valve is the most widely used.

Q:Butterfly valve is generally used in what position?: Butterfly valve used in furnace, coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, environmental protection, chemical smelting and power building water supply and drainage engineering system in conveying a variety of corrosive and non corrosive media pipeline, used to adjust and cut off the media flow.

Q:How does the pneumatic butterfly valve control the angle of opening?: This is really not good, control seems to be pneumatic defects, can only rely on the feeling

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