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Main Advantages of Bellow Seals Globe Valve
Main Advantages of Bellow Seals Globe Valve
2022-11-30

Bellow seals globe valve is a valve used to control the flow rate. Bellow seals globe valve adopts a bellow structure inside, and the lower end of the stainless steel bellow is welded on the valve stem to prevent the process fluid from corroding the valve stem. It eliminates the disadvantages of fast aging and easy leakage of ordinary valve stem packing seals, not only improves the energy efficiency, increases the safety of production equipment, reduces maintenance costs and frequent maintenance, but also provides a clean and safe working environment. It is suitable for pipelines of steam, flammable, explosive, heat transfer oil, high-purity, toxic and other media. Advantages: 1. Double sealing design (bellow + packing), if the bellow fails, the stem packing will also avoid leakage; 2. It is not easy to leak and meets international sealing standards; 3. There is no fluid loss, reducing energy loss and improving the safety of factory equipment; 4. Good anti-friction performance, long service life, reduced maintenance times, and reduced operating costs; 5. Strong and durable bellow seals design ensures zero leakage of the valve stem and provides maintenance-free conditions; 6. Intuitive indication of valve stem lifting position.

DERVOS Products Exhibited IN OSEA 2022
DERVOS Products Exhibited IN OSEA 2022
2022-11-25

OSEA (Offshore Southeast Asia) is one of the largest Oil and Gas Events in Asia. OSEA returns in 2022 as an in-person event at the forefront of offshore oil, gas and emerging zero carbon energy sources. OSEA returned from 15 -17 November 2022 to pioneer a global shift in the energy industry. Our agent in Singapore participated in OSEA, and brought our VALVES to meet you! Our products in this exhibition include Bellow Seals Globe Valve, Cryogenic Sleeve Type Plug Valve and etc. Although only some of our products are displayed on the booth, audiences can learn about our rich product categories and factory through videos. Apart from the products exhibited, our products also cover Ball Valve, Gate Valve, Butterfly Valve, Check Valve, etc. We still maintain the heart of providing you with quality services and excellent products.

Talk About Flat Gate Valve Technology
Talk About Flat Gate Valve Technology
2022-11-10

The flat gate valve is a sliding valve whose closing part is a parallel wedge. The closing part can be a single gate or a double gate with a spreading mechanism in between. Flat gate valves can be divided into flat gate valves with diversion holes and flat gate valves without diversion holes according to the gate structure. Balanced plate valves with diversion holes are used for pipelines transporting oil and natural gas. For pipelines that do not require sweepers, flat gate valves without diversion holes can be used. Features of Flat Gate Valve 1. Small flow resistance. Since the wedge slides on the two valve seat surfaces, the flat gate valve is also suitable for fluids with suspended particles. 2. It has a double block and bleed function. 3. Fireproof design. When the O-ring and PTFE are burned, under the action of fluid pressure, the wedge and the retainer, the retainer and the valve body form a metal seal, thereby isolating the fluid. In addition, the middle flange gasket and packing are made of graphite and metal materials to prevent external leakage. 4. Self-releasing function: When the pressure in the middle cavity is high, the fixer will be pressed back under the action of the fluid in the middle cavity, so as to avoid accidents caused by excessive pressure in the middle cavity.

SS High Performance Butterfly Valve
加载中...

Double Offset High Performance Butterfly Valve CF8M 3 Inch

  • Payment:

    30% T/T When Order, 70% T/T Before Shipment
  • Product Origin:

    China
  • Color:

    Customization
  • Shipping Port:

    Shanghai China
  • Lead Time:

    30~55 days Ex Works After Order Confirmation
  • Material:

    Stainless Steel Butterfly Valve
  • Method of Operation:

    Lever Butterfly Valve, Manual Butterfly Valve
Inquiry now
Product Detail

The double offset high performance butterfly valve, with lever operation and lug body, is designed per API 609. The CF8M body and PTFE seat butterfly valve is more durable in serving the application.


Quick Detail

Type

Butterfly Valve

Size

3''

Design Pressure

150LB

Construction

Double Eccnetric, Soft Seat

Connection Type

Lug

Operation

Wrench Operated

Design Code

API 609

Face to Face

ASMEB16.10

End Connection

ASMEB16.5

Test & Inspection

API 598

Body Material

Stainless Steel CF8M

Temperature Range

-29℃~+150℃

Application

Water, Oil, Gas


Dimension

High Performance Butterfly Valve Manufacturers

Class 150
DN mm 40 50 65 80 100 125 150 200 250 300 350 400
NPS in 1 1/2 2 2 1/2 3 4 5 6 8 10 12 14 16
L mm 127 127 127 127 152 203.2 203.2 203.2 203.2
in 5 5 5 5 6 8 8 8 8
L1 mm 38.1 46 50.8 48 54 63.5 57 63.5 71.5 81 92 101.5
in 1.5 1.81 2 1.88 2.13 2.5 2.25 2.5 2.81 3.19 3.62 4
H mm 185 190 220 229 239 252 284 307 337 392 435 481
in 7328 7.48 8.7 9 9.4 9.9 11.2 12 13.3 15.4 17.1 19
D(W) mm 160 160 160 160 160 160 160 200 200 250 250 300
in 6.3 6.3 6.3 6.3 6.3 6.3 6.3 7.9 7.9 9.8 9.8 11.8
Weight  (Kg) mm 12.5 13.5 17 38 72 105 148 182 230
in 8 9 10 10 11 14.5 34.2 66 98 134 168 200


Related Knowledge

What is a high performance butterfly valve?


A high performance butterfly valve is often designed with double offset and PTFE seat, to handle everything from general applications to viscous and corrosive liquids; corrosive gases and steam.


Compared to concentric resilient seat butterfly valve, the disc of the high performance butterfly valve is arranged and positioned off the center of the pipe bore, which could reduce wear and tear to the valve during operation and increase sealing performance.


In conlusion, high performance butterfly valve is applicable for higher pressure and temperature applications. Meanwhile, it has longer cycle life and better sealing ability.


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Leave a message

    If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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