PRODUCT OVERVIEW
The inlet and outlet channels of the right angle bellows stop valve are not in the same direction and form a 90 ° right angle. When the fluid passes through the valve, it will change the fluid direction and be installed at the corner of the pipeline system, which not only saves 90 degree elbow, but also facilitates operation. It is an ideal valve installed on the boiler steam pipeline. Using the bellows as the valve stem sealing element can make the valve stem leak free and prevent steam leakage. No fluid loss, improved energy efficiency, increased safety of production equipment, reduced maintenance costs and frequent maintenance, reduced operating costs, and provided a clean and safe working environment.
PRODUCT FEATURES
1. The outlet of the right angle bellows stop valve is 90 degree right angle, which is suitable for installation at the corner of the pipeline system, which can not only save 90 degree elbow, save material and space, but also facilitate operation.
2. The valve body adopts German coated sand casting technology, which greatly improves the surface finish and mechanical properties of the valve body, reduces the occurrence of pores, sand holes and cracks, and enhances the tensile strength of the casting.
3. When the valve is closed, the conical sealing surface with "scraping effect" can automatically remove surface impurities, which can ensure reliable sealing and longer service life of the valve disc.
4. Double sealing design (bellows + packing), in line with international sealing standards.
5. All bellows pass helium test and all valves pass standard test to ensure zero leakage.
6. Products above DN150 are equipped with special devices to effectively prevent the valve from shaking, noise and internal parts damage during use, and the service life is effectively increased by more than 150%.
7. Various valve disc designs can be provided according to working conditions, such as throttling valve disc, stop check valve disc, etc.
MAIN TECHNICAL PARAMETERS
Nominal pressure(MPa) | Shell test pressure(MPa) | Sealing test pressure(MPa) | Applicable temperature(℃) | Use media |
1.6 | 2.4 | 1.76 | ≤350℃ | Water, steam, oil, etc |
2.5 | 3.75 | 2.75 |
4.0 | 6.0 | 4.4 |
6.4 | 9.6 | 7.04 |
MATERIAL OF MAIN PARTS
Valve disc
Part name | Texture of material |
valve body | GS-C25、1.4301、1.4408 |
valve seat | 1.4301、Stellite |
Valve disc | 1.4021、1.4401 |
Pin | 1.4301、1.4401 |
Valve stem | 1.4201、1.4401 |
Bellows assembly | 1.4021、1.4401 |
shim | Flexible graphite + stainless steel |
Valve cover | GS-C25、1.4301、1.4408 |
Nut | ASTM 194-2H、A194-8 |
Stud bolt | ASTM 194-B7、A193-B8 |
filler | Flexible graphite |
Gland | 1C25、1.4401 |
Positioning piece | 1C25 |
Stem nut | Copper alloy、D2、BL2 |
handwheel | 1025/KTH330 |
Combined cap | 1C45 |
MAIN CONNECTION DIMENSIONS(PN1.6MPa)
Pressure class | PN16 |
caliber | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 |
L | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 | 850 | 980 |
H | 166 | 166 | 172 | 175 | 193 | 195 | 213 | 227 | 294 | 325 | 355 | 440 | 580 | 620 | 785 |
W | 120 | 140 | 140 | 180 | 200 | 220 | 260 | 280 | 300 | 340 | 400 | 450 | 450 | 500 | 500 |
weight(kg) | 4 | 5 | 6 | 10 | 13 | 18 | 25 | 30 | 40 | 50 | 100 | 180 | 300 | 450 | 670 |
MAIN CONNECTION DIMENSIONS(PN2.5MPa)
Pressure class | PN25 |
口径 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 |
L | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 | 850 | 980 |
H | 166 | 166 | 172 | 175 | 193 | 195 | 213 | 227 | 294 | 325 | 355 | 440 | 580 | 620 | 785 |
W | 120 | 140 | 140 | 180 | 200 | 220 | 260 | 280 | 300 | 340 | 400 | 450 | 450 | 500 | 500 |
Weight(kg) | 4 | 5 | 6 | 11 | 14 | 19 | 27 | 32 | 43 | 53 | 110 | 200 | 330 | 480 | 700 |
MAIN CONNECTION DIMENSIONS(PN4.0MPa)
Pressure class | PN40 |
caliber | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 |
L | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 | 850 | 980 |
H | 166 | 166 | 172 | 175 | 193 | 195 | 213 | 227 | 294 | 325 | 355 | 440 | 580 | 620 | 785 |
W | 120 | 140 | 140 | 180 | 200 | 220 | 260 | 280 | 300 | 340 | 400 | 450 | 450 | 500 | 500 |
Weight(kg) | 4 | 5 | 6 | 11 | 14 | 20 | 28 | 33 | 45 | 55 | 120 | 210 | 350 | 500 | 730 |