SHUANGLIN VALVE | Compact Brass Static Balancing Valve, DN15–DN50

In any HVAC or heating system with multiple branches, water naturally takes the path of least resistance — flooding the nearest loops while starving the farthest ones. SHUANGLIN VALVE's static balancing valve corrects this by letting installers fine-tune flow resistance at each branch, so every zone receives the flow rate it was designed for.

What This Valve Does

The valve works by throttling flow through an adjustable orifice inside the body. Turning the handwheel narrows or widens this internal passage, changing the resistance at that point in the system. Two color-coded measuring ports — one red, one blue — sit on top of the valve body, allowing a differential pressure meter to be connected directly across the valve without shutting down the system. This lets technicians measure actual flow at each valve and adjust it to match the design value during commissioning.

Compact by Design

This version uses a low-profile plastic handwheel, keeping the overall footprint smaller than valves with full metal handles — a practical advantage in tight mechanical rooms, ceiling voids, or closely spaced manifolds where clearance is limited. SHUANGLIN VALVE produces this balancing valve in solid brass, rated to PN16, across the DN15 to DN50 size range, with female threaded connections to fit standard HVAC piping.

Key Capabilities

• Adjustable orifice for setting and locking a specific flow resistance at each branch

• Dual self-sealing measuring ports for connecting a pressure/flow meter without draining the system

• Compact handwheel design suited to space-constrained installations

• Flow direction arrow marked on the body for correct installation

• Solid brass construction for long-term reliability in closed-loop water systems

Where It's Used

• Multi-zone heating and chilled water systems

• HVAC branch piping requiring flow commissioning

• District heating networks with unequal pipe run lengths

• Fan coil units and air handling unit circuits

Ordering Information

• Payment: T/T (Bank Transfer)

• Stock Items: Ships within 7 days

• Custom Orders: 30 days production time

• Logistics: Sea or air freight, with customs clearance assistance

Warranty & Customization

SHUANGLIN VALVE backs every balancing valve with a 1-year warranty against manufacturing defects, including free repair or replacement where applicable. OEM/ODM services are available for custom thread types, sizing, and private-label packaging on bulk orders.

Frequently Asked Questions

What are the two colored ports on top of the valve for? They are self-sealing measuring ports used to connect a differential pressure meter across the valve, allowing technicians to check and adjust the actual flow rate without draining or shutting down the system.

Can the flow setting be locked after adjustment? Yes. Once the correct position is found during commissioning, the handwheel setting can be fixed so it isn't accidentally changed during routine operation.

Does this valve also function as a shut-off valve? Yes. Turning the handwheel fully closed stops flow through the valve entirely, so it can also serve as an isolation point during maintenance.

What sizes and thread options are available? SHUANGLIN VALVE produces this balancing valve from DN15 to DN50. Contact us with your specification for a tailored quotation.

Contact SHUANGLIN VALVE's sales team for a detailed quotation, technical drawings, or samples.