The HH49X micro resistance slow closing butterfly check valve is mainly used in the supply and drainage pipelines of clean water,source water,sewage,seawater and other media.It is installed at the outlet of the water pump to cut off the backflow of the medium and eliminate the destructive water hammer caused by atomic energy,protecting the safe operation of the pipeline and water pump.
main features
1.Small in size,light in weight,and with a structural length only about one-third of that of a rotary check valve.
2.The slow closing system has excellent performance and is not affected by the medium in the pipeline.The valve disc closes quickly first and then slowly,which can prevent destructive water hammer.
3.Rubber soft seal,good sealing performance,wear-resistant,and long service life.
4.Rubber buffer,smooth opening and closing,no vibration,no noise.
5.Compared to traditional check valves,it has lower flow resistance and significant energy-saving effects.
Main performance specifications
Model | HH47X-10 HH48X-10 HH49X-10 | HH47X-16 HH48X-16 HH49X-16 | |
Nominal pressure | PN1.0MPa | PN1.6MPa | |
Nominal Diameter | DN50~800mm | DN50~800mm | |
Seal test pressure | 1.1MPa | 1.76MPa | |
Shell Test Pressure | 1.5MPa | 2.4MPa | |
Material for main parts | Valve body | Grey cast iron or ductile iron | Grey cast iron or ductile iron |
Valve flap | Aluminum bronze | Aluminum bronze | |
Valve stem | stainless steel | stainless steel | |
Spring | stainless steel | stainless steel | |
Seat Seals Face | rubber | rubber |
Main overall dimensions
Nominal Diameter DN | size (mm) | ||||||||
mm | in | D | D1 | D2 | H | H1 | L | Z-фd | 螺栓 |
150 | 6 | 280 | 240 | 210 | 228 | 172 | 210 | 8-ф23 | 8-M20 |
200 | 8 | 335 | 295 | 265 | 270 | 210 | 230 | 8-ф23 | 8-M20 |
250 | 10 | 390 | 350 | 320 | 305 | 240 | 250 | 12-ф23 | 12-M20 |
300 | 12 | 440 | 400 | 368 | 367 | 264 | 270 | 12-ф23 | 12-M20 |
350 | 14 | 500 | 460 | 428 | 422 | 294 | 290 | 16-ф23 | 16-M20 |
400 | 16 | 565 | 515 | 482 | 462 | 324 | 310 | 16-ф23 | 16-M22 |
450 | 18 | 615 | 565 | 532 | 497 | 351 | 330 | 20-ф25 | 20-M22 |
500 | 20 | 670 | 620 | 585 | 532 | 379 | 350 | 20-ф25 | 20-M22 |
600 | 24 | 780 | 725 | 685 | 607 | 434 | 390 | 20-ф30 | 20-M27 |
700 | 28 | 895 | 840 | 800 | 702 | 491 | 430 | 24-ф30 | 24-M27 |
800 | 32 | 1010 | 950 | 905 | 792 | 549 | 470 | 24-ф34 | 24-M30 |
Tel: 15351513006
Landline: 0515-89118577
Fax: 0515-8911 8000
Email: jtongcn 126.com
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
15351513006