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Brass flange float ball valve

    Brass flange float ball valve

    The brass flange float ball valve is a high-performance valve designed to automatically control liquid levels in tanks, reservoirs, and piping systems. Featuring a durable brass body, flange connection, and float-operated ball mechanism, it ensures precise and reliable liquid level regulation without the need for external power or sensors. Its robust construction provides excellent corrosion resistance, leak-proof performance, and long service life, making it ideal for industrial, commercial, and municipal applications. Easy to install and maintain, the brass flange float ball valve delivers efficient, energy-free operation, protecting pumps and preventing overflow while maintaining optimal system performance.
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TECHNIAL STANDARD

1.Nominal Pressure:PN≤1.6MPa

2.Working Medium:Water non-combustible gas

3.Working Temperature:0℃≤T≤60℃

4.Pipe thread to ISO 228

DN

SIZE

A

B

C

D

n

E

40

11/2

164

63

110

145

4

18

50

2

178

63

125

160

4

18

65

212

210

112

145

180

4

18

80

3

236

117

160

195

4

18

100

4

262

130

180

215

8

18

150

6

270

159

240

280

8

23

200

8

330

211

295

335

8

23

250

10

520

350

350

390

12

23

300

12

600

425

400

440

12

23


brass flange float ball valve: Environmental Standards, Performance Testing, Installation, and Troubleshooting

Introduction

The brass flange float Ball valve is an essential component in liquid-level management systems, widely used in industrial, commercial, and municipal applications. Designed with a flanged connection and a float-operated ball mechanism, it provides automatic, precise control of liquid levels, preventing overflow and protecting pumps.

This article offers a comprehensive guide covering environmental compliance, performance testing, installation procedures, and troubleshooting, providing engineers, facility managers, and procurement professionals with all the information needed for optimal use of brass flange float ball valves.


What is a Brass Flange Float Ball Valve?

A brass flange float ball valve is a mechanical device that automatically regulates liquid levels in tanks, reservoirs, and piping systems. The float ball rises or falls with the liquid level, opening or closing the valve accordingly.

Key Features:

  • Durable brass body with flange connection for secure installation

  • Float-operated ball mechanism for automatic liquid level control

  • Corrosion-resistant and leak-proof construction

  • Suitable for water, oil, and non-corrosive liquid applications

  • Requires no external power source for operation


Environmental Standards

Brass flange float ball valves are designed to meet modern environmental and safety standards, ensuring responsible and efficient operation:

1. Material Compliance

  • Manufactured from lead-free brass or low-lead alloys to meet drinking water and environmental regulations

  • Compliant with RoHS and NSF/ANSI 61 standards for potable water systems

2. Energy-Free Operation

  • The float mechanism operates mechanically without external electricity, reducing energy consumption and carbon footprint

3. Recyclability

  • Brass components are fully recyclable, supporting sustainable manufacturing and waste reduction

4. Safe for Water Systems

  • Non-toxic materials ensure safe use in potable water and food-grade applications

  • Reduces environmental hazards from leakage or corrosion

Environmental FeatureDescription
Lead-Free MaterialCompliant with NSF/ANSI 61 for safe drinking water
RoHS ComplianceFree from hazardous substances
Energy-Free OperationFloat mechanism requires no external power
Recyclable MaterialsBrass components are environmentally friendly
Non-ToxicSafe for potable water and industrial fluids

Brass flange float ball valve

Performance Testing

Performance testing ensures that brass flange float ball valves operate reliably under varying conditions.

1. Leak Testing

  • Valves are subjected to pressure testing to ensure zero leakage under maximum operating pressure

2. Float Mechanism Testing

  • The float is tested for smooth movement and precise valve operation

  • Ensures proper opening and closing at designated liquid levels

3. Pressure and Temperature Testing

  • Valves are tested for rated pressure (up to 16 bar) and temperature limits (up to 100°C–120°C)

  • Confirms durability and resistance to operational stress

4. Flow Rate Verification

  • Ensures the valve maintains proper flow control without causing turbulence or cavitation

Test TypePurpose
Leak TestVerify zero leakage under rated pressure
Float Mechanism TestEnsure smooth operation and accurate liquid-level control
Pressure & Temperature TestValidate durability and resistance to operational stress
Flow Rate VerificationConfirm proper flow without turbulence

Installation Guidelines

Proper installation ensures optimal performance and extended service life.

1. Pre-Installation Checks

  • Verify valve size, flange type, and flow direction

  • Inspect valve and float for shipping damage or debris

  • Ensure pipeline is clean and free from particles

2. Installation Steps

  1. Align valve flanges with pipeline flanges

  2. Insert gaskets between flanges to prevent leakage

  3. Secure with appropriate bolts and nuts, tightened evenly in a crisscross pattern

  4. Ensure the float has adequate vertical travel without obstruction

  5. Check that the valve orientation matches the designated flow direction

3. Post-Installation Testing

  • Fill the tank and observe the automatic operation of the float ball

  • Check for leaks at flange connections

  • Adjust float height if necessary for desired liquid-level set points

Tip: Avoid overtightening bolts to prevent flange distortion or valve body damage.


Troubleshooting and Maintenance

Even high-quality brass flange float ball valves may experience operational issues. Understanding common faults helps maintain system reliability.

ProblemPossible CauseSolution
Valve fails to open or closeFloat stuck or obstructedInspect and clean float; remove debris
Leakage at flange connectionsLoose bolts or damaged gasketTighten bolts evenly; replace gasket if necessary
Inaccurate liquid level controlFloat height misadjusted or float damagedAdjust float or replace if damaged
Corrosion or scalingPoor water quality or harsh fluidsClean valve internals; consider water treatment
Noise during operationHigh flow velocity or turbulenceReduce flow rate or install flow stabilizers

Maintenance Guidelines

  • Inspect valves every 6–12 months for wear or debris

  • Clean float and internal components as needed

  • Replace worn gaskets, seals, or float assemblies

  • Lubricate moving parts sparingly with manufacturer-approved materials


Advantages Over Traditional Float Valves

FeatureBrass Flange Float Ball ValveTraditional Float Valve
Material QualityDurable, corrosion-resistant brassOften lower-grade metals or plastics
Flange ConnectionSecure, leak-proof installationThreaded connections may loosen over time
Automatic OperationPrecise and reliable float mechanismLess precise; may require manual adjustment
Environmental ComplianceLead-free, RoHS, recyclableOften not compliant with modern standards
Maintenance RequirementLow-maintenance designMore frequent cleaning and adjustment

Insight: The brass flange float ball valve provides enhanced durability, environmental compliance, and precise liquid level control, making it suitable for demanding applications.


Conclusion

The brass flange float ball valve is an essential component for managing liquid levels efficiently, safely, and reliably in industrial, commercial, and municipal systems. With durable construction, flange connections, and a precise float-operated mechanism, it ensures automatic liquid-level regulation, leak-free performance, and minimal maintenance.

By following installation guidelines, performance testing procedures, and maintenance schedules, users can achieve long-lasting operation, compliance with environmental standards, and optimal system efficiency. The brass flange float ball valve represents a reliable, energy-free, and environmentally responsible solution for modern fluid management systems.

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