The main control valve product names of China Control Valve Network include:Special seat eccentric adjustable control valve,Straight stroke electric actuator,Straight travel electronic electric actuator,Tee electric adjustable control valve,TYH968Y electric drain control valve,UPVC electric control valve,YHR angle stroke electric actuator.

In modern household-metered two-pipe heating systems, the use of Thermostatic Radiator Valves (TRVs) creates a variable flow environment. Without proper pressure regulation, high differential pressure can lead to:Irritating Noise: Whistling sounds at the valve seat.System Oscillation: Frequent opening/closing of valves.Energy Inefficiency: Elevated return water temperatures.The Self-operated Differential Pressure Control Valve (DPV) is the ultimate solution to maintain a stable environment for these TRVs.

Comparison: 3 Application Schemes for DP Valves

3 Key Design Rules for HVAC Engineers:The 30kPa Limit: To prevent noise, the maximum pressure at the household entrance should not exceed 30kPa.Choose Heterogeneous Layouts: Both indoor and outdoor systems should use a direct return (heterogeneous) layout. This reduces total resistance and minimizes pressure fluctuations compared to reverse return systems.Ignore Natural Head: Under design conditions, neglecting the natural head simplifies calculations and guarantees thermal authority .So,Selecting the right DP valve scheme is a trade-off between budget and performance. For large-scale projects, Scheme C is the gold standard for preventing "noisy radiators" and ensuring long-term system health.

Do you still need to know or purchase the following control valve products:

• CV3000-HCB cage control valves
• CV3000-HCN low noise cage control valve
• CV3000-HCP balance cage signle seat control valve
• CV3000-HLS small bore signle seat control valve
• CV3000-HMT(HDT) tee confluence(shunt) regulator
• CV3000-HSC cage single seat control valve
• CV3000-HTS single-seat regulating valve

2026-02-26

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