Check valve φ27 (DN20)

A Check valve φ27 (DN20) is one of the most commonly used piping accessories in both residential and industrial applications. Its main function is to prevent backflow, thereby protecting pumps, pipelines, and other critical equipment in water supply and drainage systems, compressed air systems, or fire protection systems.

At Bao Tin Steel, we supply Check valve φ27 (DN20) from Minh Hòa (domestically manufactured) and Genebre (imported from Spain). Both are reputable brands trusted for their stable quality, reliable technical performance, and cost-effectiveness across various types of projects.

Minh Hòa Check valve φ27 (DN20)

The Minh Hòa brand (MIHA, MBV, MI) has long been well-known in Vietnam for its high-quality brass valves and pipe fittings, offering consistent performance at reasonable prices. With a size of DN20 (Φ27, 3/4 inch), Minh Hòa provides a variety of options suitable for households, residential projects, and small-scale technical systems.

Featured Product Lines:

• MIHA Brass Spring Check Valve: Working pressure PN16, maximum temperature 90°C; body and cover made of brass, stainless steel spring, NBR seal; suitable for domestic water systems.
• MBV Brass Spring Check Valve: Working pressure PN10, maximum temperature 90°C; compact and lightweight design for easy installation.
• MIHA – XK Brass Swing Check Valve: Working pressure PN20, maximum temperature 120°C; capable of withstanding higher pressure, ideal for demanding projects.
• MBV/MI Brass Swing Check Valve: Working pressure PN10–16, maximum temperature 120°C; versatile for use in water supply, drainage, and technical systems.

Key Advantages:

• Easy to find and replace thanks to domestic production and a wide distribution network.
• Competitive pricing, suitable for both small-scale projects and large developments.
• Stable quality, proven through practical use in numerous installations and projects.

Genebre Φ27 Check Valve (Imported from Spain)

Genebre is an international brand from Spain, renowned for its European-standard valves and piping accessories. With a size of DN20 (Φ27, 3/4 inch), Genebre offers a wide range of options — including spring check valves, swing check valves, ball check valves, and foot valves — meeting diverse needs from residential applications to industrial systems.

Popular DN20 – Φ27 Models:

• Europa 3131, York 3120, Rege 3121/3121N, Rege Plus 3122P/PN: Brass spring check valves, working pressure PN12–PN25, operating temperature -20°C to 100°C; suitable for water and compressed air systems.
• Swing Check 3180–3187: Swing-type check valves with brass or stainless steel body, pressure rating PN10–PN16, temperature up to 180°C; highly durable for harsh environments.
• Ball Check 3123: Brass ball check valve with spring and NBR seal, pressure rating PN25, maximum temperature 90°C; provides excellent sealing performance.
• Foot Valve 3142: Brass foot valve with stainless steel mesh, rated PN16, ideal for deep suction pumps and water supply systems.

Key Advantages:

• Exceptional durability thanks to manufacturing in compliance with EN/ISO standards.
• Wide product range, offering flexibility for various piping systems.
• Broad pressure and temperature range: withstands up to PN25 and operates from -20°C to 200°C.
• Reputable European brand, trusted in both international projects and installations across Vietnam.

Practical Applications of DN20 Check Valves

With a size of DN20 (Φ27, 3/4”), these small check valves are suitable for low-flow systems and branch lines in various installations:

• Household water pumps: Installed after small-capacity pumps (0.5–1.5 HP) to prevent backflow, protect the pump, and maintain stable pressure in the pipes.
• Residential and building water supply systems: Used on DN20 branch lines to ensure one-way flow, reduce leaks, and prevent cross-contamination.
• Small-scale HVAC systems: Applied on FCU (Fan Coil Unit) branches or low-flow technical piping.
• Light industrial applications: Suitable for low-flow compressed air, light oil, or dilute chemical pipelines.

Note: For high-flow systems or applications requiring stringent standards, such as main fire protection pipelines or large-capacity HVAC circuits, DN20 valves are not suitable. In such cases, larger valves (DN25–DN40 or above) that meet the specific technical standards should be selected.

Benefits of Using DN20 (Φ27) Check Valves from Minh Hòa and Genebre

Although classified as small-sized valves, the Φ27 (DN20, pipe 27) check valves offer significant advantages for medium- and small-scale piping systems:

• Protect pumps and equipment: Prevent backflow, avoiding water hammer and potential damage to pumps.
• Maintain stable pressure: Ensure consistent water pressure in domestic supply systems, especially when using booster pumps.
• Reduce maintenance costs: Minimise issues caused by reverse flow, extending the lifespan of pipes and related equipment.
• Cost-effective: Low initial investment and easy replacement when needed.
• Flexible installation: Compact design allows use in various branch lines without occupying much space.

Purchase Genuine DN20 Check Valves at Bao Tin Steel

If you are looking for high-quality, genuine Φ27 check valves at a competitive price, Bao Tin Steel is a trusted choice:

• Official distribution: We supply two reputable brands, Minh Hòa (MIHA, MBV, MI) and Genebre (Spain), ensuring authentic products with complete CO–CQ documentation.
• Wide selection: From spring check valves and swing check valves to ball check valves and foot valves, suitable for both domestic and light industrial applications.
• Competitive pricing: Attractive discount policies available for project clients and businesses.
• Professional service: Dedicated technical consultation and fast nationwide delivery.

Contact Bao tin Steel today for detailed advice, the best quotes, and professional technical support for Φ27 check valves.