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Seabol Petro-chemical Pipeline Equipment Co.,Ltd
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Cast Iron / Stainless Steel Electric Butterfly Valve, Forged Steel Valves
| Place of Origin: | Zhejiang, China (Mainland) |
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Product Detail
Doubly-eccentric butterfly valves </spa
Doubly-eccentric butterfly valves
Triply-eccentric butterfly valves
Wafer-style butterfly valves
Lug-style butterfly valve
Sizes: 3.0" through 24.0"
Cast Iron / Stainless Steel Electric Butterfly Valve, Forged Steel Valves
Description:
Butterfly valves are valves with a circular body and a rotary motion disk closure member which is pivotally supported by its stem. A butterfly valve can appear in various styles, including eccentric and high-performance valves. These are normally a type of valve that uses a flat plate to control the flow of water. As well as this, butterfly valves are used on firefighting apparatus and typically are used on larger lines, such as front and rear suction ports and tank to pump lines.
Types Concentric butterfly valves - This type of valves has a resilient rubber seat with a metal disc.
Doubly-eccentric butterfly valves (high-performance butterfly valves or double-offset butterfly valves) - Different type of materials is used for seat and disc.
Triply-eccentric butterfly valves (triple-offset butterfly valves) - The seats are either laminated or solid metal seat design.
Triply-eccentric (offset) design Triple eccentric (offset) Design prevents galling and scratches between the metal seat and the metal disc due to its unique design. The only time where the seal comes into contact with the seat is at the point of complete closure. Triple offset valves are generally used in applications which require bi-directional tight shut-off in oil and gas, LNG/NPG terminal and tanks, chemical factories, and shipbuilding. Widely use for dirty/heavy oil to prevent extrusion.
Wafer-style butterfly valves The wafer style butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i. e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.
Lug-style butterfly valve Lug-style valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.
A lug-style butterfly valve used in dead end service generally has a reduced pressure rating. For example a lug-style butterfly valve mounted between two flanges has a 150 psi pressure rating. The same valve mounted with one flange, in dead end service, has a 75 psi rating.
BUTTERFLY VALVE
Sizes: 3.0" through 24.0"
Styles: Triple Eccentric, Wafer, Lug, Gate Valve Face to Face
Bodies: Cast Carbon Steel, 304SS or 316SS with Integral Disc Stop
Body: Coatings: Two Part Polyester Epoxy on Carbon Steel Valves
Discs: Carbon Steel, 304SS, 316SS
Retaining Ring: Boltless Design
Seats: Solid Elliptical Shaped Floating Inside the Disc Profile, Changes Shape with Increase Temperature, 360 Degree Continuous Line Contact, Class IV and Class V Continuous Shutoff with No Seat Washout, Torque Seated, Temperatures to 1100 F
Stems: 17-4 pH (Gr 630), XM19
Bearings: PTFE+316SS
Packing: PTFE, PTFE+15% Graphite
Options: Cast Stainless Steel Heat Dissapating Fins, Stem Extensions
Working Pressures: ANSI 150, ANSI 300, ANSI 600
Top Works: Pad and Stem ISO 5211
Certifications: API-609, API-598, MSS SP-61
Electric lining rubber butterfly valves, component by 3601R series angle travel electronic electric actuators and valve body. Body cavity corrosion rubber lining, simple structure, easy operation, long service life and light weight.
Valve Body
Type: Two pieces Direct cast ball valve, Concrete structures please see figure 1(DN50~300) and figure 2 (DN350~600)
Nominal Size: DN405065801001251502002503003504004505006007008009001000
Nominal Pressure: GB PN 1.01.6MPa
ANSI 150
End Connection: No flange type(Wafer type)
Flange GB PN1.0 1.6Mpa according to HG20596-97M;
ANSI CLASS150 according to ANSI B16.5 RFHG/T20615-97
Flange distance: Wafer type according to GB/T12221-1989, EN558.1: 1995, ISO5752-1982 basic series 20
Flange according to EN558.2: 1995 and ISO5752-1982 basic series 14
Body Material: ZCuAl10Fe3QT450-10 Nickel platedWCBZG0Cr18Ni9ZG0Cr18Ni12Mo2Ti
Bonnet Type: Same with body
Packing: PTFE V-type
Packing Gland: Bolts pressure type
Oil paint: Carbon steel shell surface required to paint, shell made of stainless steel and copper no painting.
Trim
Disc: Type: Linetype
Flow characteristics: Approximate percentage, please refer to FIG 4 and table 2
Disc material: QT450-10 Nickel platedZcuAl10Fe3ZG0Cr18Ni9ZG0Cr18Ni12Mo2Ti
Stem material: 2Cr13 piece. Modified17-4pH Precipitation hardening processingCr18Ni9Cr17Ni12Mo2
Seat material: Please refer to table 1
Rated travel: Full open 90°
Actuator
Type: 3601R series angle travel electronic electric actuators,
Concrete structures please see figure 3
Power: Single phaseAC220V± 10% 50Hz, Three phase AC380V± 10% 50Hz(If need three phase power, please mark out. )
Power consumption: A type 50VA, B type 150VA, C type220VA
Control signal: DC4~20mA, DC1~5V(Long distance avoid DC1~5V)
Output signal: DC4~20mA, DC1~5V(Load resistance below 500Ω )
Function forms: Changes Positive and negative effects by switch
MAX rotor angle: 90°
Adjust scope: 0± 25%, rotor angle 20%~100%
Environmental temperature: Ordinary without space heaters -10 C~+60 C, Space heaters -35 C~+60 C, Flameproo -10 C~+60 C
Relative humidity: Ordinary under 95, Flameproof 45% ~ 85%
Protection level: IP65
Class of explosive-proof: Exd II BT4
Overload protection: A type and B type will be optional, C type should be matched
Application
Can be widely used in chemical, pharmaceutical, food, paper and water treatment industries, etc. For switching and adjusting control of all kinds of efficient and reliable gas, liquid and solid powder size and medium.
Specification
