Two-way sealed flexible butterfly’s valve

Dec 31st, 2011

Brand: Other

Name: Two-way sealed flexible butterfly’s valve

Type: DN100~DN3000

About products:

It is our company on the basis of introducing foreign advanced technology that the two-way metal seals butterfly’s valve, it is complete to be improved, adopt the accurate elasticity to seal and enclose and contact through the polished butterfly board, apply to metallurgy, petrochemical industry, air and for draining off water and urban constructioning,etc. extensively

The products are detailed:

It is our company on the basis of introducing foreign advanced technology that the two-way metal seals butterfly’s valve, it is complete to be improved, adopt the accurate elasticity to seal and enclose and contact through the polished butterfly board, regulate and dam the device to use at the industrial pipeline of applying metallurgy, petrochemical industry, air to extensively and for draining off water and urban construction etc..

Characteristic
1,The physical dimension of this butterfly’s valve is short, small, light and operating lightly.
2,The intersection of butterfly and valve this adopt the intersection of semi-axis and structure, butterfly board adopt the intersection of truss and structure, intensity high crossing, flowing area to be loud shedding and hindering little and saving energies.
3,This butterfly valve adopts the off-centre structure, realizes butterfly’s board separates promptly at the time of opening, close and is exposed to namely sealed result, reach and lengthen the life-span, the best purpose of the sealing property.
4,This butterfly valve seals the surface and selects to make of stainless steel, has metal sealing and double advantage with sealed elasticity, no matter at low temperature and high-temperature situation, have a fine sealing property, corrosion-resistant performance, characteristic having long performance life.
5,This butterfly valve has two-way sealed function, the restriction not flowing into by the medium while installing (if only need to control the unidirectional medium, should adopt, favorable to the sealed installation direction to be installed preferably) ,Also free of the position of space, can install in any direction.

Operation principle
The intersection of worm gear and the intersection of transmission and two-way metal seal the intersection of butterfly and valve, moderate through the intersection of worm gear and organization such as being vice through rotate handwheel, drive butterfly’s board of valve stem to make 90& deg; The rotation in the range, achieve the goal of blocking, connecting or regulating the flow. Electronic two-way metal seal the intersection of butterfly and valve, moderate or drive the valve stem, the intersection of butterfly and board to act as 90& deg by electronic device by worm gear directly; The rotation in the range, thus achieve the goal of opening and closing. No matter worm gear transmission or electronically, to close or open the intersection of position and limited the intersection of location and organization limit location valve, and instruct organizations to reveal butterfly’s opening state on board synchronously.

Technical parameter and carrying out the standard

The two-way metal seals butterfly’s valve

The two-way rubber seals butterfly’s valve

Two-way sealed flexible butterfly’s valve

Nominal to lead to the foot-path (mm)

DN100~300

DN100~2400

DN100~2000

Nominal pressure (MPa)

PN0.25~4.0

PN0.6~1.6

Valve material

QT450-10, WCB, alloy steel, stainless steel

HT200, QT450-10, WCB

QT450-10, WCB, stainless steel

Applicable medium

Water, steam, oil, coal gas, natural gas, exhaust gas and weak corrosivity fluid

Applicable temperature (℃)

-30~425

-10~100

-10~100 or – 30~425

Design and make

GB/T 8527-1997

GB/T 12238-1989

GB/T 8527-1997, GB/T 12238-1989

Structural length

GB/T 12221-1989

Connect flange

GB/T 9113.1-2000

The pressure is tested

GB/T 13927-1992

Connect the form

The flange is connected, clash is connected

The flange is connected

Transmission way

Worm gear worm transmission, electronically, pneumatic

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