Application of Explosion-proof Electric Fixed Ball V-port Control Valve in Central Air Conditioning Return Water System

HVAC & Refrigeration

The GRAT Explosion-proof Electric Fixed Ball V-port Control Valve is well-suited for such demanding working conditions, enabling the air conditioning system to operate efficiently, stably and safely.

Background

The return water system is a core part of central air conditioning circulation. Its operational stability and regulation accuracy directly affect the overall system energy efficiency and temperature control performance. In flammable, explosive environments such as petrochemical plants and hazardous goods warehouses, the return water system is required to deliver high-precision flow regulation while complying with strict explosion-proof safety standards. The GRAT Explosion-proof Electric Fixed Ball V-port Control Valve is well-suited for such demanding working conditions, enabling the air conditioning system to operate efficiently, stably and safely.

Key challenge

  • Limited turndown ratio and hydraulic imbalance, which cause excessive flow at near-end pipelines, insufficient flow at far-end pipelines and increased energy consumption of main units.
  • Severe internal leakage leading to ineffective heat exchange, as well as easy deformation of valve body and wear of sealing surfaces.
  • Impurity accumulation inside flow passages results in valve core sticking and regulation failure, forming a vicious cycle.
  • High explosion-proof grade is mandatory for hazardous environments, together with support for intelligent automatic regulation of the system.

Application of Explosion proof Electric Fixed Ball V port Control Valve in Central Air Conditioning Return Water System 3

Operation Condition

Product Name: Explosion-proof Electric Fixed Ball V-port Control Valve

Medium: Water

Nominal Pressure: 1.6 MPa

Nominal Diameter: DN50

Operating Temperature: ≤ 120 ℃

Explosion-proof Grade: Ex db â…¡C T6 Gb

Valve Body Material: WCB

Valve Core Material: 304 Stainless Steel

Sealing Type: Hard Seal

Connection Type: Flange Connection

Working Power Supply: DC24V

Ingress Protection Rating: IP67

Commissioning Year: 2025

Application Location: Shanghai

Application of Explosion proof Electric Fixed Ball V port Control Valve in Central Air Conditioning Return Water System 1 edited
Application of Explosion proof Electric Fixed Ball V port Control Valve in Central Air Conditioning Return Water System 2

Performance Result

  • Adopts high-precision wide-range regulation design to eliminate hydraulic imbalance including near-end over-flow and far-end under-flow, and reduce energy consumption of main equipment.
  • Features zero-leakage sealing structure, enhanced valve body rigidity and optimized sealing technology to ensure long-term stable operation.
  • Equipped with V-notched ball core and straight-through dead-zone-free flow passage. The self-cleaning shear effect effectively prevents blockage and lowers maintenance workload.
  • The actuator is professionally engineered and certified for explosion protection (Ex db â…¡C T6 Gb). Built-in intelligent modules realize both safety guarantee and automatic intelligent regulation.

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