Balancing Valve
As a Balancing Valve Supplier in Dubai, we provide manual and automatic balancing valves designed to regulate and maintain the correct flow in hydronic and process water networks. These valves allow engineers to measure differential pressure, adjust flow precisely, and lock the setting so every branch receives its design duty. The result is stable system performance, quieter operation, and improved pump efficiency across day-to-day operations.
How Balancing Valves Work
Balancing valves control flow using a calibrated passage and an adjustable seat. Their function depends on the design:
- Manual (Static) Balancing Valves: Operators adjust the handwheel to set flow while reading the differential pressure across built-in test ports. A memory stop locks the setting, ensuring future maintenance does not disturb commissioning.
- Pressure Independent Balancing Valves (PIBV): These include an internal regulator that automatically maintains constant flow, even when system pressures fluctuate as other valves open or close. This keeps circuits and coils at their target flow without manual recalibration.
Benefits
- Ensures each coil or branch receives the correct flow for steady temperatures
- Improves pump efficiency by eliminating overflow and unnecessary throttling
- Speeds commissioning with integrated pressure and temperature test ports
- Reduces noise and vibration linked to excessive velocity and flow imbalance
- Simplifies troubleshooting with indexed scales and repeatable settings
- Low maintenance design with service kits available for long-term reliability
Industries Served
Our experience as a Balancing Valve Supplier in Dubai includes:
- Chilled Water Networks: production and distribution circuits for district cooling
- Water & Desalination Plants: utility and product water headers
- Power Generation: condenser cooling water and auxiliary circuits
- Industrial Utilities: process water and closed-loop networks in manufacturing sites
- Petrochemical & Chemical Plants: unit utilities and secondary water services
- Marine & Offshore Utilities: seawater cooling and auxiliary service lines
Technical Specifications
- Size Range: DN 15 to DN 600 (½ in to 24 in)
- Pressure Ratings: PN 10, PN 16, PN 25; ASME Class 125 and 150 on request
- Temperature Range: −10 °C to +120 °C for water and glycol; higher available on special designs
- End Connections: threaded BSP or NPT; grooved ends to AWWA C606; flanged to EN 1092-1 or ASME B16.5
- Test Ports: paired pressure and temperature plugs for commissioning and verification
- Scale & Resolution: indexed handwheel with memory stop; repeatability within commissioning tolerance
- Flow Reference: supplied factory flow curves; certified bench calibration available on request
- Coatings: internal and external epoxy for water service; stainless options for corrosive or coastal applications
Design Standards
- ISO 5208 / EN 12266 – pressure and leakage testing
- EN 1092-1 or ASME B16.5 – flange dimensions
- ASME B1.20.1 or ISO 7 – threaded ends
- ASME B16.34 – pressure containing design where applicable
- AWWA C550 – epoxy coating inspection guidance
Inspection and Testing
- Hydrostatic shell and seat tests to ISO 5208 / EN 12266
- Dimensional and visual checks of body, bonnet, and trim
- Verification of test port sealing and smooth handwheel travel
- Optional flow bench calibration with recorded differential pressure and settings
- Material traceability with EN 10204 3.1 or 3.2 certification; third-party inspection on request
Body and Trim Material Compatibility
Category | Material / Grade | Standards / Grades | Typical Applications |
---|---|---|---|
Ductile Iron | EN-GJS-450-10 with epoxy lining | EN 1563 | Chilled water, district cooling mains |
Cast Carbon Steel | WCB, WCC with epoxy | ASTM A216 | Industrial water, cooling duties |
Low Temp Carbon Steel | LCB, LCC | ASTM A352 | Chilled water and low-temperature glycol |
Bronze / DZR Brass | C83600, CW602N | ASTM B62 / EN 12165 | Small bore hydronic circuits, clean water |
Cast Stainless Steel | CF8 (304), CF8M (316), CF3M | ASTM A351 | Corrosive or brackish water, RO product |
Forged Stainless | F316, F316L | ASTM A182 | Trim, stems, higher pressure duties |
Duplex / Super Duplex | F51 (2205), F55 (2507) | ASTM A182 / A890 | Seawater and chloride-rich environments |
Super Austenitic | F44 (254SMO) | ASTM A182 / A351 | Desalination and high chloride service |
Nickel Alloys | Monel 400, Inconel 625 | ASTM B564 | Aggressive brine, sour service, seawater |
Titanium | Grade 2, Grade 5 | ASTM B348 | Extreme chlorides, seawater, offshore plants |
Special Features
- Tamper-resistant memory stop to preserve commissioned settings
- Indexed and tagged scales with clear resolution for repeatable flow setting
- Removable venturi cartridge for cleaning or bench verification
- Integral test cocks positioned for fast differential pressure readings
- Insulation-friendly bonnet and optional jacket kits to prevent condensation
- Color-coded handwheels and flow markers for easy identification
- Customisation available for material selection, coatings, and calibration accessories
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