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Danfoss STC 20A Stop Valve 148B4603, DN20, PS25, 3/4" Butt Weld Angleway
Danfoss

Description

The Danfoss STC 20A (148B4603) is a heavy-duty angle stop valve designed for industrial refrigeration systems. With a nominal diameter of DN20 and a pressure rating of 25 bar, it features an angleway flow path for compact L-type installations and reliable shutoff performance. Equipped with a handwheel for manual operation and 3/4" butt weld connections, this valve is compatible with ammonia and fluorocarbon refrigerants. Manufactured in India, it is ideal for cold storage, chillers, and industrial refrigeration applications.

Product Details

Danfoss STC 20A (148B4603) Stop Valve

 
The Danfoss STC 20A (148B4603) is a robust, high-performance angle stop valve engineered for industrial refrigeration systems. Designed to meet the demanding requirements of ammonia and fluorocarbon refrigerant applications, it provides reliable manual shutoff and isolation for maintenance, repairs, and system control.
 

Key Features & Benefits

 
  • High Pressure Rating: Rated for a maximum working pressure of 25 bar (PS25), suitable for most industrial refrigeration system pressures.

  • Angleway Design: The 90-degree angle configuration simplifies installation in tight spaces or L-shaped piping layouts, reducing piping complexity.

  • 3/4" Butt Weld Connections: Standard butt weld connections simplify integration into refrigeration piping systems, ensuring leak-free performance.

  • Handwheel Operation: A large, ergonomic handwheel allows for easy manual opening and closing, even under high pressure conditions.

  • Multi-Refrigerant Compatibility: Compatible with ammonia (NH3) and common fluorocarbon refrigerants, offering versatility across different system designs.

  • Durable Construction: Manufactured to strict Danfoss quality standards, ensuring long service life and reliable performance in harsh industrial environments.

 

Application Scenarios

 
This stop valve is ideal for:
 
  • Industrial refrigeration systems and ammonia plants

  • Cold storage warehouses and walk-in freezers

  • Water chillers and process cooling systems

  • HVAC&R system maintenance and isolation

  • Piping networks requiring reliable manual shutoff valves

 
As a genuine Danfoss component, the STC 20A (148B4603) stop valve is the trusted choice for industrial refrigeration professionals worldwide.
ParameterSpecification
BrandDanfoss
SeriesSTC
Model NumberSTC 20A
Part Number148B4603
Product TypeIndustrial Refrigeration Angle Stop Valve
Nominal Diameter (DN)DN20 (3/4")
Maximum Working Pressure (PS)25 bar
Connection Type3/4" Butt Weld (ANSI)
Operation TypeHandwheel Operated
Body DesignAngleway (90°)
Compatible RefrigerantsAmmonia (NH3), Fluorocarbons
OriginMade in India
ApplicationIndustrial Refrigeration, Cold Storage, Chillers, HVAC&R Systems

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