DN50 check valve

Are you looking for a high-quality DN50 check valve (also known as a φ60 check valve) for your piping system?
With a nominal size of DN50 (~2 inches, outer diameter approximately 60 mm), this is one of the most common valve sizes, widely used in water supply and drainage, firefighting (FACP), HVAC, and industrial systems.
The valve functions to prevent backflow, protect pumps and equipment, and maintain stable system pressure.

At Bao Tin Steel, we supply a wide range of DN50 check valves (φ60 check valves) from reputable brands such as MIHA, MBV, MI (Minh Hòa), Shin Yi, ROBO, and ARV — all meeting international standards, with full CO-CQ certification, ready stock, and competitive pricing.
This article will help you understand the features, technical specifications, pricing, and installation guide for this type of valve.

Outstanding Features of the DN50 (φ60) Check Valve

Effective backflow prevention:
The automatic open–close mechanism protects pumps, equipment, and the entire system from reverse pressure or reverse flow.

Fast closing, water hammer reduction:
Designed with a swing disc or spring (silent check), the valve closes smoothly, minimising hydraulic shock and extending pipeline life.

Durable materials:

• Brass series (MIHA, MBV, MI): Excellent corrosion resistance, suitable for clean water, compressed air, and light oil.
• Ductile iron series (Shin Yi, ROBO, ARV): High mechanical strength and pressure resistance, commonly used in industry and firefighting systems.
• Disc materials: EPDM, NBR, or stainless steel for tight sealing and long service life.

Pressure & temperature range:
Working pressure from 10 Bar to 25 Bar; operating temperature from -10°C to 120°C — suitable for various environments.

Connection types:

• Threaded: Convenient for small pipes, quick installation.
• Flanged: High sealing performance, easy to remove for maintenance.
• Wafer: Compact design, space-saving.

Easy maintenance:
Many models feature quick-release caps for easy cleaning or replacement of gaskets and springs without removing the entire valve.

Technical Specifications (DN50 / φ60 Check Valves)

Notes when reading specifications:

• Ensure the pressure rating (PN) matches the system working pressure.
• Temperature rating determines suitability for hot water, steam, or special fluids.
• Choose connection type and material based on environment, installation space, and maintenance needs.

Types of DN50 check valve at Thép Bảo Tín

1. Spring Check Valves (Silent Check)

• Brands: MIHA, MBV (Minh Hòa), SCVX – Shin Yi, SCV – ROBO.
• Structure: Stainless steel spring ensures quick closure when pressure drops or flow reverses.
• Advantages: Tight sealing at low pressure, low noise, compact design.
• Disadvantages: Lower flow rate; the spring needs periodic inspection.
• Applications: Pump systems, HVAC, clean water, high-rise buildings.

2. Swing Check Valves (Rubber Disc Type)

• Brands: MIHA, MBV, MI (Minh Hòa), RDCV – Shin Yi, DCV – ROBO, AFC200 – ARV.
• Advantages: Large flow capacity, simple structure, easy maintenance.
• Disadvantages: May not close tightly at very low pressure; slight closing noise.
• Applications: Water supply & drainage, firefighting, wastewater, and industrial systems.

3. Wafer Dual Plate Check Valves

• Brand: WBCX – Shin Yi.
• Advantages: Compact, lightweight, fast closing, quiet operation.
• Applications: Clean water pumps, HVAC, food & beverage industry.

Applications

• Domestic and industrial water supply/drainage systems
• Firefighting systems (FACP)
• HVAC (heating, ventilation, and air conditioning)
• Wastewater treatment plants
• Oil, gas, and light chemical industries

Buying Guide for φ60 (DN50) Check Valves

1. Identify the working environment

• Clean water, firefighting: Brass or ductile iron with EPDM disc.
• Wastewater: Swing type with wide cavity.
• Air or light oil: Brass body, NBR seal, stainless disc.

2. Choose the connection type

• Threaded: Quick, economical, suitable for residential use.
• Flanged: High sealing, industrial-grade.
• Wafer: Compact, ideal for tight spaces.

3. Select proper pressure rating (PN10 / PN16 / PN25)
Always choose a valve rated equal to or above the system pressure.

4. Choose reputable brands

• MIHA, MBV, MI (Minh Hòa): Cost-effective for residential and mid-size projects.
• Shin Yi, ROBO: Stable quality, suitable for demanding applications.
• ARV: For heavy-duty, high-sealing industrial systems.

5. Buy from authorised distributors
At Bao Tin Steel, you get authentic products with CO-CQ certificates, technical support, competitive pricing, and nationwide delivery.

Installation & Maintenance Guide

Preparation:

• Check size and connection type (threaded/flanged/wafer).
• Clean pipes before installation.
• Prepare gaskets, bolts, nuts, and sealing tools.

Installation Steps:

1. Determine flow direction (follow the arrow on the valve body).

2. Install valve:

   • Threaded: Use PTFE tape, tighten gently.

   • Flanged: Align, insert gasket, tighten bolts evenly.

   • Wafer: Align between flanges carefully to prevent disc jamming.

3. Test system for leakage and correct valve operation.

Maintenance (every 3–6 months):

• Isolate pressure, remove valve.
• Clean disc and seals.
• Inspect spring and gasket; replace if worn.
• Avoid using harsh chemicals or metal brushes.
  Tip: Install isolation valves before and after the check valve for easy maintenance.

Buy Genuine DN50 (φ60) Check Valves at Bao Tin Steel

Why choose Bao Tin Steel :

• 100% genuine products (MIHA, MBV, MI, Shin Yi, ROBO, ARV).
• Full CO-CQ certification.
• Large inventory, fast delivery nationwide.
• Competitive prices and project discounts.
• Professional technical support and after-sales service.

👉 Contact Bao Tin Steel today to get the latest 2025 price quote for DN50 (φ60) check valves and free technical consultation!

• Hotline: 0932 059 176
• Email: bts@thepbaotin.com