LY CHECK VALVE
HD75X系列超薄型蝶形止回阀是我公司在引进、消化日本新技术的基础上研制而成的高性能单向阀，广泛适用于建材、冶金、矿山、石化、电力、给排水等行业，是旋启式止回阀的换代产品。
The valve is the high performance single-direction valve designed on the base of introducing and absorbing theJapannew technology. it is widely used in building material, metallurgy, mining, oil chemical, electric power and feed water and drainage industries etc. it the new product of rotary-open type check valve
结构特点：
Structure characteristic:
HD75X系列产品结构新颖，体积小、重量轻、强度高，流阻系数小、水头损失低、灵敏度高、密封性能强。密封面无磨损，使用寿命长，安全可靠。
The valve has the features of novel structure, small volume, great strength, little lost of flow resistance, little lost of water end, grate delicacy, good sealing performance, no abrasion on sealing surface, long life and safety.
性能参数：
Performance parameter:
公称压力 Nominal pressure | 1.0MPa | 1.6MPa | 2.5MPa |
强度试验压力 Intensity test pressure | 1.5MPa | 2.1MPa | 3.5MPa |
密封试验压力 Seal test pressure | 1.2MPa | 1.76MPa | 2.75MPa |
适用温度 Suitable temperature | -35℃～120℃ |
适用介质 Suitable medium | 水、海水、净化污水、蒸汽、油品等各种液体及气体介质 Water, sea water, purified sewage, steam, oil and all kinds of liquid and gas medium |
HD75X系列 外形连接尺寸：
Appearance joint dimensions:
DN | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 |
1.0 MPa | D | 102 | 122 | 133 | 158 | 212 | 268 | 320 | 370 | 430 | 482 | 532 | 585 | 685 | 800 | 905 |
H | 125 | 142 | 150 | 176 | 240 | 295 | 352 | 400 | 460 | 515 | 570 | 620 | 725 | 830 | 935 |
1.6 MPa | D | 102 | 122 | 133 | 158 | 212 | 268 | 320 | 370 | 430 | 482 | 532 | 585 | 685 | 800 | 905 |
H | 125 | 142 | 150 | 176 | 240 | 295 | 352 | 400 | 460 | 515 | 570 | 620 | 725 | 830 | 935 |
2.5 MPa | D | 102 | 122 | 133 | 158 | 212 | 278 | 335 | 390 | 450 | 505 | 555 | 615 | 720 | 820 | 930 |
H | 125 | 142 | 155 | 178 | 245 | 315 | 367 | 425 | 480 | 540 | 595 | 650 | 765 | 850 | 950 |
B | 15 | 15 | 15 | 15 | 25 | 25 | 25 | 30 | 30 | 40 | 40 | 50 | 50 | 60 | 60 |
