 
D673H Pneumatic Three Eccentric Hard Seal Butterfly Valve Product Description
Pneumatic
 hard seal butterfly valve, which is widely used in petroleum, chemical,
 electric power, metallurgy, food, medicine, textile, paper and other 
industries, can be installed in the industry
Temperature ≤425℃ Medium for gas, air, steam, water, sea water, oil and other industrial pipe network for regulating flow and cutting medium.
The
 driving forms include manual, worm gear drive, pneumatic, hydraulic, 
electric, electro-hydraulic linkage and other executive mechanisms, 
which can realize remote control and automatic operation. Metal hard 
seal butterfly valve series, long life, energy saving butterfly valve. 
The structure is designed with the principle of three dimensional 
centering, and the valve seat adopts a multi-layer structure with hard 
and soft sealing, which is exquisite in workmanship and advanced in 
technology. This product is composed of valve body, butterfly plate, 
multi-level valve seat, valve stem, transmission mechanism and other 
main components. It is widely used in metallurgy, electric power, 
petroleum, chemical industry, air, gas, combustible gas and water supply
 and drainage pipeline.
D673H Pneumatic Three Eccentric Hard Seal Butterfly Valve Product Characteristics
Because
 this product is used in valve design principle of three-dimensional 
space trajectory eccentric, the sealing surface of the sealing surface 
to achieve the ideal, no friction, no interference between each other, 
and the sealing material selection properly, so that the valve sealing 
performance, corrosion resistance, high temperature resistance and wear 
resistance has been a reliable guarantee. Its main features are as 
follows:
1, Small opening torque, flexible and convenient, labor-saving and energy saving.
2, Three dimensional core structure, so that the butterfly plate closes 
more tight, its sealing performance is reliable, to achieve no leakage.
3, High pressure resistance, corrosion resistance, wear resistance, long service life and so on.
Main Dimensions Of D673H Pneumatic Three Eccentric Hard Seal Butterfly Valve
D73H/D373H/D673H/D973H- (6, 10) C, P, R, V Series Pair Clip Metal Hard Seal Butterfly Valve
| Nominal Diameter  | Outline Size | Connection Size | |||||||
| L | H | D73H/D373H/D673H/D973H | PN0.6MPa | PN1.0MPa | |||||
| H1 | A1 | B1 | D1 | Z-d | D1 | Z-d | |||
| 50 | 43 | 112 | 350 | 180 | 200 | 110 | 4-14 | 125 | 4-18 | 
| 65 | 46 | 115 | 370 | 180 | 200 | 130 | 4-14 | 145 | 4-18 | 
| 80 | 64 | 120 | 380 | 180 | 200 | 150 | 4-18 | 160 | 8-18 | 
| 100 | 64 | 138 | 420 | 180 | 200 | 170 | 8-18 | 180 | 8-18 | 
| 125 | 70 | 164 | 460 | 180 | 200 | 200 | 8-18 | 210 | 8-18 | 
| 150 | 76 | 175 | 555 | 270 | 280 | 225 | 8-18 | 240 | 8-22 | 
| 200 | 89 | 208 | 605 | 270 | 280 | 280 | 12-18 | 295 | 8-22 | 
| 250 | 114 | 243 | 680 | 270 | 280 | 335 | 12-22 | 350 | 12-22 | 
| 300 | 114 | 283 | 800 | 380 | 420 | 395 | 12-22 | 400 | 12-22 | 
| 350 | 127 | 310 | 835 | 380 | 420 | 445 | 16-22 | 460 | 16-22 | 
| 400 | 140 | 340 | 915 | 450 | 470 | 495 | 16-22 | 515 | 16-26 | 
| 450 | 152 | 380 | 960 | 480 | 490 | 550 | 16-22 | 565 | 20-26 | 
| 500 | 152 | 410 | 1020 | 480 | 490 | 600 | 20-22 | 620 | 20-26 | 
| 600 | 178 | 470 | 1225 | 480 | 490 | 705 | 20-26 | 725 | 20-30 | 
| 700 | 229 | 550 | 1355 | 640 | 660 | 810 | 24-26 | 840 | 24-30 | 
| 800 | 241 | 640 | 1470 | 640 | 660 | 902 | 24-30 | 950 | 24-33 | 
| 900 | 241 | 710 | 1545 | 750 | 860 | 1020 | 24-30 | 1050 | 28-33 | 
| 1000 | 300 | 770 | 1795 | 850 | 900 | 1120 | 28-30 | 1160 | 28-36 | 
| 1200 | 360 | 890 | 1965 | 850 | 900 | 1340 | 32-33 | 1380 | 32-39 |