Products

DESCRIPTION

Basic Info

Model NO.	DVBV-002
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	En558 13/14 Series, Awwa
Application	Industrial Usage, Water Industrial Usage
Color	Ral5005/5015/5017 or Other Requests
Operator	Manual/Electric Actuator/Pneumatic Actuator
CKD or SKD	Available
Transport Package	Plywood Case
Specification	DN100-DN3600
Trademark	OEM or Davan
Origin	Tianjin, China
HS Code	8481804090
Production Capacity	20000PCS/Year

Product Description

Double eccentric butterfly valve EN558 series 13 flange type technical specification:

Nominal Diameter: DN100-DN3600

Nominal Pressure: 10Bar/16Bar/150lbs/25bar

Design Standard: BS EN593/BS5155/API609/DIN3354

FTF Dimension: ISO 5752 SERIES 13&14 /BS EN558 SERIES 13&14 /API609/DIN3202/ASME B16.10

Flange Connection: ASME B16.1 Class125/ASME B16.5 CL150/ASME B16.47 CL150/AWWA C207/

DIN 2501 PN10-16-25/EN1092 PN10-16-25

Inspection and Test: EN12266-1/API 598/ISO5208

Material list:

1. Body

• Ductile Iron: ASTM A536 60-40-18/ DIN1693 GGG40,GGG50
• Carbon Steel: ASTM A216 WCB
• Stainless Steel: ASTM A351 CF8/CF8M

2. Disc

• Ductile Iron: ASTM A536 60-40-18/ DIN1693 GGG40,GGG50
• Carbon Steel: ASTM A216 WCB
• Stainless Steel : ASTM A351 CF8/CF8M
• Bronze AL-Bronze: ASTM B148 C954

3. Stem

• Stainless Steel: ASTM A182 304/316/410
• Alloy: Monel K500

4. Seat SS304/SS316/Brass
5. Sealing Ring EPDM/NBR
6. Retaining Ring Carbon Steel/SS304/SS316
7. Screw Carbon Steel/SS201/SS304/SS316
8. Packing NBR/EPDM/VITON/Flexible Graphite
9. Yoke Cast Iron/Carbon Steel
10. Bushing PTFE/Bronze
11. Pin

• Stainless Steel ASTM A182 304/316/410
• Alloy Monel K500

Some Ending Clients

 

Advantages of Double eccentric Butterfly Valve

1. The double eccentric butterfly valve shaft is placed offset to one side of the valve centerline. The benefits of this valve versus a single eccentric are that the valve seat and the disk will not contact while traveling. The disc will cam away from the seat while opened, and contact is not established before the final shut off position.

2. The double eccentric type is the difference of the pressure-area on the disc. Since the stem is offset to one side the pressure area will be slightly bigger on one side of the shaft. If the valve installed in the preferred direction the process pressure will help the valve making a better sealing.

3. Small operation torque of big size butterfly valve

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

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

Products links: https://davanflowtek.en.made-in-china.com