Danfoss STC 50A 148B4633 Stop Valve, DN50, PS25, Straight Butt Weld-ANSI
The Danfoss STC 50A (148B4633) is a heavy-duty large-bore straight stop valve designed for industrial refrigeration systems. With a nominal diameter of DN50 and a pressure rating of 25 bar, it features a straight Y-type flow path for low pressure drop and reliable shutoff performance. Equipped with a handwheel for manual operation and butt weld-ANSI connections, this valve is compatible with ammonia and fluorocarbon refrigerants. Manufactured in China, it is ideal for large cold storage, chillers, and industrial refrigeration applications.
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Product Overview
Danfoss STC 50A (148B4633) Stop Valve
Key Features & Benefits
High Pressure Rating: Rated for a maximum working pressure of 25 bar (PS25), suitable for most industrial refrigeration system pressures.
Straight Y-Type Flow Path: The in-line Y-shaped design minimizes pressure drop, ensuring efficient system operation even when the valve is fully open.
Butt Weld-ANSI 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
Large 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
| Parameter | Specification |
|---|---|
| Brand | Danfoss |
| Series | STC |
| Model Number | STC 50A |
| Part Number | 148B4633 |
| Product Type | Industrial Refrigeration Straight Stop Valve |
| Nominal Diameter (DN) | DN50 |
| Maximum Working Pressure (PS) | 25 bar |
| Connection Type | Butt Weld-ANSI |
| Operation Type | Handwheel Operated |
| Body Design | Straight Y-Type |
| Compatible Refrigerants | Ammonia (NH3), Fluorocarbons |
| Origin | Made in China |
| Application | Large Industrial Refrigeration, Cold Storage, Chillers, HVAC&R Systems |
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