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CN | EN

Dynamic balance constant flow valve

Technical Parameters

Product model: ERV
Nominal diameter: DN50~500mm
Nominal pressure: PN1.6MPa
Applicable temperature: 0 ℃~95 ℃
Applicable media: air conditioning cold and hot water, ethylene glycol solution

Product Details

Product overview
The dynamic flow balancing valve automatically changes the resistance coefficient according to the system working conditions, and can effectively control the flow through it to maintain a constant value within a certain pressure difference range. That is, when the pressure difference before and after the valve becomes larger, through the automatic closing action of the dynamic flow balance valve can keep the flow rate unchanged, on the contrary, when the pressure difference decreases, the valve automatically opens, the flow rate remains constant, when the pressure difference is less than or greater than the normal working range of the valve, it can not provide additional pressure head after all, at this time the dynamic flow balance valve reaches the fully open or fully closed position The flow rate is still lower or higher than the set flow can not be controlled. The dynamic flow balancing valve enables the valve bladder to change according to the pressure difference changes of the water system from time to time, and will not exceed the originally set water flow rate and absorb excessive pressure difference, so as to realize the automatic balance of the entire water system with pressure and flow. Dynamic flow balancing valve in the application, as the system pipe pressure fluctuates, the balance valve automatically moves up and down to change the opening, so as to keep the flow of the pipeline always constant.

Key features
1. The dynamic balancing valve does not require external energy when the flow rate is automatically adjusted.
2. In the automatic adjustment of the equipment or pipeline flow to reach the required design flow.
3. Compact design saves installation space
4. Simplifies the calculation workload of the piping system at the time of design
5. The installation work is convenient and fast
6. There is no need to carry out balance debugging before the operation of the dynamic balance valve system
7. The stainless steel bladder ensures that the valve has strong corrosion resistance and long working life.

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Main Dimensions

Nominal diameter
DN(mm)

B(mm)

C(mm)

D(mm)

E(mm)

F(mm)

G(mm)

weight

Weight(Kg)

Nominal diameter
DN(mm)

B(mm)

C(mm)

D(mm)

E(mm)

F(mm)

G(mm)

weight

Weight(Kg)

50

99

125

165

38

239

218

16

300

389

430

485

38

466

565

187

65

188

145

185

38

239

218

19

350

448

490

555

38

479

700

249

80

132

160

200

38

239

218

22

400

503

550

620

38

504

790

356

100

156

190

235

38

365

270

38

450

548

640

670

38

517

800

418

125

184

220

270

38

365

295

46

500

609

660

730

38

520

880

518

150

211

250

300

38

410

354

66

600

720

770

845

38

554

1050

718

200

274

310

360

38

430

484

96

800

928

990

1085

38

557

1260

865

250

330

370

425

38

456

488

128











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