Dunan DSF-4 4-Way Air Conditioner Reversing Valve – 5/16" Inlet x 3/8" Outlet, 1.7 m³/h Flow, R410A/R22/R32 Compatible

Product Description

The Dunan DSF-4 model is a low-capacity 4-way reversing valve designed for compact split air conditioner and heat pump systems. With 5/16" inlet and 3/8" outlet connections it fits mini split applications perfectly. Thanks to pilot valve control, fast and reliable switching between the cooling and heating modes of the system is ensured. Compatible with common refrigerants such as R410A, R32 and R22, this valve offers energy efficiency in low-capacity systems in particular.

Key Features

• Design specific to compact systems
• Effective performance in low-flow systems with 1.7 m³/h flow rate
• Full compatibility with R410A, R32, R22, R407C, R134a, R290 and R404A
• Switching stability even at low operating pressure differentials (min. 0.25 MPa)
• Fluid temperature: operation between -30°C ~ +135°C
• Maximum capacity (R22): 13,500 BTU ≈ 4.0 kW

Technical Specifications

• Model: DSF-4-2161
• Part Code: 240005059500
• Connections: Inlet: 5/16" – Outlet: 3/8"
• Flow Rate (Kv): 1.7 m³/h
• Nominal Capacity (R410A): 3.9 – 5.5 kW
• Maximum Capacity (R22): 13,500 BTU (≈ 4.0 kW)
• Maximum Operating Pressure: 3.5 MPa
• Minimum Pressure Differential: 0.25 MPa

Compatible Refrigerants

R410A, R32, R22, R407C, R134a, R290, R404A

Applications

• Mini split air conditioning systems
• Low-capacity heat pump applications
• Compact residential HVAC solutions

Frequently Asked Questions

What does a 4-way air conditioner reversing valve do?

The 4-way reversing valve switches between the cooling and heating modes in air conditioner and heat pump systems. In the Dunan DSF-4 model this switching takes place quickly and stably with pilot valve control; it works even at a minimum pressure differential of 0.25 MPa.

Which refrigerants is the Dunan DSF-4 valve compatible with?

It is compatible with the refrigerants R410A, R32, R22, R407C, R134a, R290 and R404A. The operating fluid temperature range is -30°C to +135°C.

What are the connection sizes and capacity of the DSF-4 valve?

The inlet connection is 5/16 inch, the outlet connection is 3/8 inch and the flow rate (Kv) value is 1.7 m³/h. Its nominal capacity with R410A is 3.9–5.5 kW, its maximum capacity with R22 is 13,500 BTU (approximately 4.0 kW), and the maximum operating pressure is 3.5 MPa.

What are the part codes of the Dunan DSF-4 valve and which systems is it used in?

The model code is DSF-4-2161, the part code is 240005059500 and the Yedepa product code is DSF-4. It is designed for mini split air conditioning systems, low-capacity heat pump applications and compact residential HVAC solutions.

Can I buy regularly with an invoice as a service company/technician?

Yes, all our sales are invoiced. All orders, including those from service companies and technicians, are placed directly through our website.

How do I track my shipment after ordering?

Your shipment tracking number is sent to your e-mail and phone after ordering; you can follow its status in the “Where Is My Shipment?” section.

Can I return or exchange the product?

Yes. Under Consumer Protection Law No. 6502 you have the right of withdrawal/return within 14 days of delivery. To avoid ordering the wrong model, we recommend that you verify compatibility before ordering. Details are on our “Delivery, Returns and Exchanges” page.

What payment and instalment options are available?

You can pay by debit/credit card and Tosla, and take advantage of instalment/credit options through Fibabanka and Akbank. Current options are listed on our “Payment Options” page.

Where is Yedepa located and how is delivery made?

Yedepa is an e-commerce site; orders are placed through yedepa.com and shipped to your address by courier from our warehouses across Turkey and from our contracted suppliers. Our head office is at Cennet Mah. 2. Yavuz Selim Cad. No:68/A, Küçükçekmece / İstanbul.