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BALANCING VALVES

Hydralic Static Balancing Valve
AIP-10Q/16Q/25Q
Profile

AlP-series static balancing valve is static hydro-working valve, having good flow characteristics, enabling proper flow allotment,and making quantitative flow, therefore effectively dealing with the indoor temperature about unevenly heating and cooling problem existing in heat supply (air-conditioning) system. As the static balancing valve having equipped with indicator, open locking device, and small pressure valve for flow measuring, it is only installed proper specifications of static balancing valves in each branch and users’ pipeline entries. Upon locking after once-for-all adjustment with special instrument, the total amount of water in the system could be controlled within a proper range so as to overcome the improper phenomenon of “large flow but small
difference in temperature” The static balancing valve becomes an ideal product used in heating system with highest medium temperature up to 100 C.
The balancing valve’ s working ways include hydraulic automatic control and manual control but without extra conditions. The working temperature is normal one, with EN 1.6MPa or 2.5MPa, and the circumstance shall be clean and good.
Application: lt is widely used in pipelines of central air conditioning system, water supply and drainage, fire protection, petroleum, and chemical and engineering,as well as industry and mining enterprises, etc., especially used in pump house of the central air-conditioning system

Technology Feature
  • Y type straight structure, low flow resistance, enlarging flow capacity.
  • Equipped with Internal lift stem without leaving operation room in advance.
  • Digital display hand wheel makes operation easy, swift and reliable.
  • Multiple sealing structure applied to stem
  • Anti-cavitation shield added, affectively protect valve from cavitation impact, and reducing noise and vibration.
  • Hygienic and corrosion resistant, stem, limit rod, gland nut,and regulating screw are made of stainless steel or copper.
  • The whole valve complies with sanitary standard, applying to potable water piping, hygienic, safe and reliable. Locking set
    provides after adjusted balancing valve with reliable and safe lock.
Compiled Standards

Product design and production is in accordance with GB1T28636.

Flange connection complies with BS4504, DIN 1092 and GB/T 17241.6

Face-to-face dimension complies with EN 558-1. GB1T12221

Inspection and acceptance comply with GB/T 28636, GB/Ti 3927.

  Nominal Pressure (MPa) 1.6 2.5
 

  Pressure Test

Shell test (MPa)


Sealling test (MPa)

2.4


1.76

3.75


2.75

  Working Pressure (MPa) 1.76 2.75
  Working Temperature -20~130°C
  Suitable Media Water, Ethylene glycol,Steam
  Flow error range ±5%(50%~100% Opening)

Main Parts List and Materials

Name Items Materials Name Items Materials
1 Valve body GGG5O 8 Wear ring PTFE(F-4)
2 Cavitation Shield CF8 9 Gland nut H62
3 Limit rod SS304 10 Disc seal ring EPDM, FKM
4 Gasket ZCuSn5Pb5Zn5 11 Hex. bolt SS 304
5 Cover GGG5O 12 Bushing ZCuSn5Pb5Zn5
6 Regulating bold H62 13 Balancing chamber ZCuSn5Pb5Zn5
7 Stem SS304 14 Hand wheel GGG5O

 Type select about static hydraulic balancing valve

  Where

  Practical formula:Q=Kvx 4W where

  Q—Flow rate(m3 /h)

  Kv—Valve flow coefficient(flow in m3 /h at 1 bar diff.press.)

  P —Diff Press.(Bar)

  i.e.Put static balancing valve installed in flow rate 50m3 /h  piping
Q=50 m3 /h    APO.O5Bar

  According to the formular Q=KvX4XF  calculation.Kv-222,Look up the valve’ s Kv in size of DN 125 from the   following table to obtain kvs that is 293. Put the number in the formula to get a practical flow resistance when     the valve is in full opening which is 0.O2gbar equaling to 0.29 m height of water column.

DN L D D1 D2 b H Kvs
PN
10
PN
16
PN
25
PN
10
PN
16
PN
25
PN
10
PN
16
PN
25
PN
10
PN
16
PN
25
PN
10
PN
16
PN
25
PN
10
PN
16
PN
25
PN
10
PN
16
PN
25
50 230 165 165 165 125 125 125 99 99 99 19 19 19 169 36
65 290 185 185 185 145 145 145 118 118 118 19 19 19 204 98
80 310 200 200 200 160 160 160 132 132 132 19 19 19 207 122.2
100 350 220 220 235 180 180 180 156 156 156 19 19 19 231 201
125 400 250 250 270 210 210 210 184 184 184 19 19 19 264 293
150 480 285 285 300 240 240 250 211 211 211 19 19 20 278 404
200 600 340 340 360 295 295 310 266 266 274 20 20 22 444 814.5
250 730 395 405 425 350 355 370 319 319 330 22 22 24.5 480 1200
300 850 445 460 485 400 410 430 370 370 389 24.5 24.5 27.5 529 1600
350 980 505 520 555 460 470 490 429 429 448 24.5 26.5 30 708 2220
400 1100 565 580 620 515 525 550 480 480 503 24.5 28 32 818 3180
450 1200 615 640 670 565 585 600 530 548 548 25.5 30 34.5 900 3840
500 1250 670 715 730 620 650 660 582 609 609 26.5 31.5 36.5 950 4550
600 1450 780 840 845 725 770 770 682 720 720 30 36 42 1125 6932
700 1650 895 910 960 840 840 875 794 794 820 32.5 39.5 46.5 1260 9435
800 1850 1050 1025 1085 950 950 990 901 901 928 35 43 51 1408 12938
900 2050 1115 1125 1185 1050 1050 1090 1001 1001 1028 37.5 46.5 55.5 1600 15597
1000 2250 1230 1255 1320 1160 1170 1210 1112 1112 1140 40 50 60 1850 20286
11200 2600 1455 1485 1530 1380 1390 1420 1328 1328 1350 45 57 69 2100 29212