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Double Offset Butterfly Valve

Short Description:

Size  - 48
Pressure 150LB-600LB
End Connection Double Flange ,Lug,Wafer,
Bore Standard Bore
Body Material Cast Steel , Stainless Steel, Alloy Steel,Duplex Alloy ,Special Alloy
Seat Material PTFE, RTFE, 316 SS, Inconel,ECT
Design API 609,EN593
Face to Face API 609
End Connection ASME B16.5,ASME B16.47
Checking & Test API 598,en12266 ,ISO 5205
Top Flange ISO 5211
Operation By Lever, By Gear, By Electric or Pneumatic Actuator
Marking MSS-SP-25

Product Detail

Product Tags

Features

● ISO 5211 top plate for direct mounting of a wide range of actuators, handles, and gears
● Adjustable stem packing features pull down gland with easy access without removal of actuator
● Tangential wedge pins are offset from center of stem putting them in compression rather than shear
● Disc stop designed to prevent disc rotation in wrong direction and potential seat damage
● Retainer clip provides blow-out proof stem
● Live-loaded stem seal system by a set of Belleville springs. Rocker shaped gland bridge compensates for uneven adjustment of gland bolts
● “Bear-X” bearing has excellent thermal, chemical and wear resistance
● One piece body with extended neck
● Self-energizing flexible lip seal soft seat design. Two points of contact on fire-safe metal seat design

Double Offset Butterfly Valve (1)

Advantage

A double offset butterfly valve, known as a high-performance butterfly valve, has an extensive range of applications nowadays. This type is an improved valve based on the features and structure of the single offset butterfly valve.
First Offset – the axle of the shaft is following behind the center of the sealing point of valve disc to the valve seat.
Second Offset – the axle of the shaft is eccentric to the center-line of the valve.

The double offset structure in the stem center deviates from the centers of the disc and valve itself. Upon these features, the disc can leave the seat quickly. Furthermore, reducing unnecessary squeezing and scraping between the two parts. The wearing process then is decreased, and the valve prolongs its operation life.

Moreover, the seat of double offset butterfly valves made from metal yields the declining rate of scraping. Not to mention the ability to withstand working conditions that involve high temperature. This seat feature expands the application range to industries that require high-temperature butterfly valves in their day to day operations.

More Information

Payment Term L/C, T/T, Western Union,Paypal
Delivery Time 15 - 30 days after payment
Seaport Shanghai Or Ningbo China
The 3rd Inspection Available
Sample Available for Double Offset Butterfly valves
Warranty Period 18 months after shipments and 12 months after installed
Valve Test 100% quantity tested before delivery
Packing Plywood Case for Double Offset Butterfly valves
MOQ 1 Pc for Double Offset Butterfly valves
Nameplate According to customer for Double Offset Butterfly valves
Color According to customer for Double Offset Butterfly valves
Shipment By sea,By Air ,By Express,and door to door available
OEM/ODM Service Available

RXVAL Double Offset Butterfly valves are what you need if you want high quality and durable butterfly valves that can deal with higher temperatures and higher pressure services, because RXVAL is one of the top high performance butterfly valve manufacturers in China.

If you need high-performance butterfly valves that can manage higher temperatures and higher pressure applications, the double offset butterfly valves are among the best options with all the functions and advantages they offer.


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