Super Duplex Double Offset Butterfly Valve Wafer Type 4inch 150lb

Super Duplex Double Offset Butterfly Valve Wafer Type 4inch 150lb

1. Pressure Class :150LB
2. Size : 6inch ( DN150 )
3. Body & Disc :Stainless steel ASTM A351 CF8
4. Seat : PTFE
5. Stem :17-4PH
6. Lever Operator

Product Details

We are well aware that technology is a direct manifestation of the company's hard power and the cornerstone for us to provide better DN350 LUG Butterfly Valve, Wafer Double Offset Butterfly Valve, 150LB Flanged Butterfly Valve to customers. Our mission is to create an open and win-win platform and work with partners to create a healthy industry environment. We concerned about the introduction of foreign investors and strategic partners as a major impetus to development of our company.

【Product Introduction】:

High Performance Double eccentric butterfly valve,in addition to the conventional valve had to adapt to the working condition of the medium,according to different medium,chose different structure material and special processing,can aslo be used for cryogenic、vapor、chlorine gas、oxygen、high vacuum、corrosion and other special conditons. Zhengfeng vlave Design standard :API 609, DIN2559, EN593, JIS, GOST and so on.


【Seat Tightness】:

1. When pressure is on the insert side,pressure is applied under the seat lip.This further amplifies the sealing force between the disc and the seat.

2. When pressure is on the non-insert side,the disc moves into the seat.Due to the spherical profile of the disc,the more the disc moves into the seat,the tighter the shut-off.Excess movement of the seat is limited by the flexible lip which contacts the bottom of the groove in the insert ring.

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Product Details:

1. Pressure rate : Class150LB~300LB,PN6~PN63

2. Size : DN50~DN1200

3. Material : Ductile Iron、Aluminium Bronze、Carbon steel、Stainless Steel、Monel、Alloy20...

4. Wafer ends、LUG ends、Double flange

5. Operation : Gearbox、Handle lever、Pneumatic Actuator...

6. Face to face API 609/ISO

7. Test and inspection API598/ISO 5208


HP Butterfly Valve Features:

1. Fire-proof valve is tested to API607 4th Edition and BS6755 Part2.

2. Fixed collar is installed in the top of axis,2''-24'',when axis breaks accident,avoid the upper part to move out of gland.

3. Convenient to maintain and upkeep valve seats.Replace axis only by taking inserts down,without disassembling disc.

4. Superior control characteristics and Inherent flow characteristic is modified equal percentage.

5. Available in a wide choice of material for a broad range of applications.

6. Tight shut-off even in control applications.


The continued growth in sales of our Super Duplex Double Offset Butterfly Valve Wafer Type 4inch 150lb shows that we have excellent capabilities in developing new products and quickly responding to customer needs. The items to assure years of trouble-free service has attracted a great deal customers. On the road of future development, we will try our best to develop more and better products to serve customers at home and abroad. We look forward to working with all friends to develop together and create a better tomorrow!

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