Triple-eccentricity Butterfly Valve
Triple-eccentricity Butterfly Valve
Valve stem axis at the same time away from the center of the disc and the center of the body, and the valve seat rotary axis and the valve channel axis has a certain angle, known as the triple-eccentricity butterfly valve.
Technical Specifications
Materials:
Body:
Forged Carbon Steel:
ASTM A105 | ASTM A350 Gr. LF2 | A182 F5,F9, F11, F22, F91
Forged Stainless Steel:
ASTM A182 Gr F316, F316L, F316Ti, F304, F347H, F317L, F321/321H, F310S, F44(254SMO)
Duplex:
A182 F51, F53, F55
Nickel Alloy:
Monel 400 | Inconel 600, 625 | Hastelloy C27, C22, B2 | Incoloy 800/800HT, 825 etc.
Ball:
ASTM A105 w/ENP | ASTM A350 Gr. LF2 w/ENP | ASTM A182 Gr. F316 | ASTM A182 Gr. F316 w/ENP
Stainless Steel | Duplex SS | Nickel Alloy etc.
Seat:
RPTFE | Nylon | Davilon | PEEK | Tek-Fil® | TFM
Stem:
ASTM A479 Type 410 | 17-4PH | XM-19 | ASTM A182 F316 | Stainless Steel | Duplex SS | Nickel Alloy etc.
Caliber Range
2“ to 180” | DN50 to DN4500
Pressure Range
Class150 to 600 | PN10 to PN100
Operating Temperature
-46℃ to 200℃ | -50.8℉ to 392℉
Operation Mode
Handle | Worm Gear | Electric etc.
Connection
RF | RTJ
Design Standard
API 609 | ASME B16.34 | GB/T12238 | JB/T 8527
Leakage class
ANSI B 16.104 VI
Design Standard
API 609 | ASME B16.34 | GB/T12238 | JB/T 8527
Features And Benefits
Triple-eccentricity butterfly valve, when the valve is in fully open state, the butterfly plate sealing surface will all deviate from the seat sealing surface, when the butterfly plate from 0 to 90 degrees, the butterfly plate sealing surface gradually leave the seat sealing surface, the valve opens, when the butterfly plate from 90 to 0 degrees, the butterfly plate sealing surface gradually close to the seat sealing surface, and then pressed tightly, the valve closes.
Compact And Light
Butterfly valve assembly space is small, light weight, easy to install and maintain, suitable for working conditions with limited space.
Good Sealing And Long Service Life
Good sealing effect, long service life, adapt to a variety of fluid control occasions.
Lightweight And Low Torque
Light structure design, low operating torque, reduce operating costs and energy consumption.
Soft Seal
Soft sealing design ensures high sealing performance, adapting to various working conditions.
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