Precision Balancing Valve Solutions
Engineered for Optimal System Performance

Static balancing valves use equal percentage or linear valve cores with factory-calibrated Kv curves (±5% accuracy) for manual flow adjustment. Each valve features 1/4" measurement ports to ISO 7-1 or ISO 228 standards for flow verification using Q = Kv √ΔP formula. Dynamic balancing valves integrate spring-diaphragm differential pressure regulators within a single body, maintaining constant flow across 20-400 kPa pressure differentials with near-unity valve authority.

Standard bodies are manufactured from ductile iron EN-GJS-400-15 (DN 65-300 flanged) or brass CW617N (DN 15-50 threaded) with EPDM or PTFE sealing, rated for -10°C to 120°C operation at PN 16/25. For higher temperature applications up to 150°C, full stainless steel hard-seal construction is available. All materials meet drinking water standards with WRAS, ACS, or NSF-61 certified low-lead brass options for potable water systems.

Kv calculation uses the formula Q = Kv √ΔP, where Q is flow rate (m³/h), Kv is the valve coefficient, and ΔP is differential pressure (bar). Our engineering team provides detailed sizing calculations considering system pressure drop, fluid properties, and valve authority requirements. Static valves require proper pre-setting based on design flow, while dynamic valves automatically maintain set flow regardless of system pressure variations.

Dynamic balancing valves feature laboratory-tested response times typically under 1 second for opening/closing cycles. Flow setting capability covers 5:1 to 8:1 turndown ratios through graduated adjustment knobs on identical valve sizes. The self-flushing flow path and cone structure maintain stable operation in circulating water with suspended solids up to 500 ppm at 20°C, ensuring reliable performance in real-world system conditions.

All balancing valves are manufactured under ISO 9001 and ISO 14001 quality systems with complete valve testing per EN 12266-1 for shell and seat pressure testing. CE marking ensures compliance with EU PED 2014/68/EU directive and RoHS/REACH regulations. For digital-equipped versions, Modbus and BACnet protocol compatibility enables integration with building management systems per EN 15232, ASHRAE 135, and LEED/BREEAM energy efficiency standards.

Standard configurations in common sizes (DN 25-200) typically ship within 15-25 days from order confirmation. Custom specifications or larger diameters may require 20-35 days depending on material procurement and testing requirements. Emergency service provides 72-hour production start capability for critical applications. Consignment inventory arrangements are available for frequently used sizes to eliminate lead times for maintenance and expansion projects.

Standard warranty covers 12 months from shipment date for manufacturing defects in materials and workmanship. Performance guarantees include Kv accuracy within ±5% for static valves and differential pressure regulation within specified ranges for dynamic valves. Comprehensive technical documentation supports warranty claims with complete material traceability and test records. Extended warranty programs are available for critical HVAC and district heating applications.

Our technical team provides comprehensive application engineering including hydraulic calculations, valve selection based on system characteristics, and pump interaction analysis. Remote technical support covers valve sizing, system commissioning guidance, and troubleshooting assistance. Training materials include operation and maintenance procedures, with video conference support for installation teams. All recommendations are provided with supporting calculations and material compatibility assessments.

Complete documentation packages include dimensional drawings, material certificates with heat numbers, hydrostatic and pneumatic test reports, and Kv characteristic curves. Operating instructions cover measurement port usage, pre-setting procedures, and maintenance schedules. Digital flow module variants include communication protocol documentation and BMS integration guides. All documents are provided in English with technical drawings meeting international engineering standards for project compliance.

Volume pricing begins with quantities of 50+ identical specification valves, with additional discounts for multi-year framework agreements. Project-specific pricing considers total package value including associated accessories and measurement equipment. Long-term partnership agreements provide preferential pricing, priority production scheduling, and dedicated technical support for qualified contractors and system integrators. Stocking programs can be established for frequently used valve configurations to support ongoing maintenance requirements.