Cast Iron Double Eccentric Triple Eccentric Flange Wafer Centerline Butterfly Valve

• Media: Water
• Driving Mode: Manual
• Connection Form: Lug Support
• Structure: Centre Sealing
• Seal Form: Rubber Sealed
• Valve Stem: Normal
• Model NO.: twk-11
• Work Pressure: Low Pressure (Pn<1.6mpa)
• Working Temperature: Normal Temperature (-40°C<T<120°C)
• Material of Seal Surface: Soft Sealed
• Valve Body: Casting
• Standard: En593/BS5155/API609
• Application: Industrial Usage, Water Industrial Usage
• Color: Ral5005/5015/5017 or Other Requests
• Operator: Manual/Electric Actuator/Pneumatic Actuator
• CKD or SKD: Available
• Warranty: 1 Year
• Transport Package: Plywood Case
• Specification: DN50-DN1200
• Trademark: OEM or Davan
• Origin: Tianjin, China
• HS Code: 8481804090
• Production Capacity: 50000PCS/Year

Product Description

Cast iron double eccentric triple eccentric flange wafer centerline butterfly valve

Usage:  is applied in the water industry, municipal engineering, water conservancy project, drinking water engineering, and etc.
 

Material of main parts
Body	Cast Iron	GG25
	Ductile Iron	GGG40
	Carbon Steel	WCB
	Stainless Steel	1.4408/1.4308
	Al - Bronze	CuAl 10Fe5Ni5
Disc	Ductile Iron	GGG40
	Carbon Steel	WCB
	Stainless Steel	1.4408/1.4308
	Al - Bronze	CuAL10Fe5Ni5
	Coating	EPDM / VITON / Nylon
Shaft	Stainless Steel	1.4301/1.4401/1.4406
	Alloy	2.4360
Seat	Elastomer	Working Temperature
	EPDM	-15-130ºC
	NBR	-10-80ºC
	VITON	-20-150ºC
	PTFE	-15-205ºC
Bushing	PTFE
	Bronze
Pin	Stainless Steel	1.4301/1.4401/1.4406
	Alloy	2.4360

Some Ending Clients



Advantages of a Butterfly Valve

Butterfly valves are similar to ball valves but have more advantages. They are open and close very quickly when actuated pneumatically. The disc is lighter than a ball, and the valves require less structural support than a ball valve of comparable diameter. Butterfly valves are very precise, which makes them advantageous in industrial applications. They are quite reliable and require very little maintenance.
 

1. Turning on/off easily and rapidly with less force. Having less fluid resistance and can be operated frequently.

2. Simple structure, small size and short face to face dimension, which suitable for large diameter valves.

3. It can be used for transmitting mud, fewer liquids are stored at apertures of pipe.

4. Long service life. Standing the test of tens of thousands of opening/closing operations.

5. Butterfly valves have excellent regulation performance.

6. Small torque. The pressure on discs at the two sides of the spindle is almost equal, causing contrary torque. Thereby, the valves can be opened with less force.

7. Sealing face is generally med of rubber or plastic. So the butterfly valves can be with good sealing under low pressure.







MOQ

We do not have any MOQ for this valve, 1 set order is also can be accepted.

Delivery

It depends on the order quantity, but not more than 35-40days after received payment
 

By sea	LCL shipment
	Container shipment
By air	By air cargo or courier for sample

Payment way

30% deposit, the balance will be paid before loading.
 

Hydraulic testing

We promise 100% hydraulic testing before exporting, with a testing machine and testing bowl(for big size).

Body testing: 1.5* design pressure

Sealing testing 1.1* design pressure

We can provide a 12-month warranty after the shipping date.

 

Packing way

Plywood case in exporting standard, bubble plastic packing inside

For large size, we will use steel pallet with bubble plastic packing outside

Our Overseas Exhibition 





 FAQ:

1. Yes, sample order is available for quality check and market test.
 
2. Quality is priority, we always attach the importance to quality control from the beginning to the end of the production.Every product will be fully assembled and carefully tested before painting, packing and shipping.

3. It usually takes about 25-30 working days to produce. For big order, it depends on the order quantity.

4. We usually accept T/T, L/C,and others payment.

5. We offer 12months warranty time.

6. Depends on your request, we have standard models in stock. Some special products and big order will be newly produced according to your order.

7. Yes, different models can be mixed up in one container.

8. Our company has been audited and approved ISO9001and WRAS certificate. 

9.  OEM & ODM services will be provided by us depend on your requirement.

  
Or you can visit our website: davanflowtek.en.made-in-china.com