Flanged double eccentric metal seated butterfly valve

corrosive proof, high temparature resistance and long life,convenience for operation,semi-axle structure,double-eccentric.

Double flange type

Face to face length acc.to ISO5752 series 14(DIN3202 F4)

Flange dimension and drilling acc.to ISO7005-2(EN1092-2,DIN2501)

1. The valve sealing surface is made of the stainless acid-proof steel.

2.size: 2"-64"3.class: 150lbs4.body:DI/WCB/SS304/SS316Al-bronze5.Disc/C95800/954006.Shaft:SS410/SS304/SS/Monel K500

7.Coating:fusion bonded epoxy coating min.thickness≥250 micron

8.Suitable medium:water and low-corrosive liquid etc.

9.Suitable temperature:-10~120°c

Characteristics

1.Short structure size,small volume,light weight,convenience for operation.

2.Adopting semi-axle structure,high strong disc board,big flow area,small resistance and little comsumption for energy.

3.Adopting the double-eccentric sealing structure,so the more closed and the more tight.the sealing performance is very reliable.after opening ensure sealing surface against contact,keep sealing surface from damaging.

4.The valve sealing surface is made of the stainless acid-proof steel, which has the characteristics of corrosive proof, high temperature resistance and long life.

5.With bi-direction sealing function, the valve can be installed in any direction,not limited by medium flow direction and by space postion.

6.As to underground horizontal installing pipe net butterfly valve,it posses the unique bi-directional synchronic display mechanism,user may watch the valve opening or closing status from operation direction.

7.The extension part of extension type bi-direction metal seated butterfly valve can be extended freely and be fixed for limitation according to working condition

Working principle:

By revolving hand wheel(taper squard head) and through worm gear mechanism decelerate,worm gear driving two direction metal sealing butterfly valve makes valves axle and butterfly board revolve in 90,to achieve throttling,connection or adjustment.Also electric driving makes the valve axle butterfly board revolve in 90 ranges to achieve opering or closing,whether worm or electric driving,valve opening and closing position has limit mechanism to limit position and indication mechamism to show symchronically the board opening status.

Flanged double eccentric metal seated butterfly valve