Valves & Actuators

Valves & Actuators

Precision flow control solutions for HVAC, water, and steam systems with automated actuation.

Precision Flow Control Solutions

Tongfang valves and actuators provide reliable flow control for HVAC, chilled water, hot water, and steam systems with precise modulation and tight shut-off capabilities.

High Precision

0.1% resolution control valves with linear and equal percentage characteristics.

Spring Return

Fail-safe spring return actuators for safety-critical applications.

Product Range

Control Valves

2-Way & 3-Way Control Valves

Globe and ball valves for precise flow control in heating, cooling, and mixing applications.

Types
2-way, 3-way mixing & diverting
Sizes
DN15 to DN200 (½" to 8")
Body Materials
Bronze, cast iron, stainless steel
Pressure Rating
PN16 to PN40 (230 to 580 psi)
Electric Actuators

Modulating & On/Off Actuators

Spring return and non-spring return actuators with position feedback for precise control.

Torque Range
5 Nm to 200 Nm (44 to 1770 in-lb)
Control Signal
0-10V, 4-20mA, BACnet, Modbus
Travel Time
15s to 120s (90° rotation)
Fail-Safe
Spring return options available
Pressure Independent

Pressure Independent Control Valves (PICV)

Automatic flow regulation regardless of pressure fluctuations in the system.

Flow Range
0.1 to 50 m³/h (0.44 to 220 GPM)
ΔP Range
10 to 300 kPa (1.5 to 43.5 psi)
Accuracy
±5% of setpoint flow
Applications
Fan coil units, chilled beams, VAV
Steam Applications

Steam Control Valves

Specialized valves for steam heating and process applications with anti-cavitation trim.

Temperature Rating
Up to 220°C (428°F)
Pressure Class
PN16 to PN63
Trim Types
Cage, micro-port, anti-cavitation
Materials
Stainless steel, carbon steel

General Specifications

Control Signals
0-10V DC, 4-20mA, BACnet MS/TP, Modbus RTU
Power Supply
24V AC/DC, 110V AC, 230V AC
Position Feedback
0-10V or 4-20mA, potentiometer
Ingress Protection
IP54 standard, IP67 available
Operating Temperature
-20°C to +80°C (-4°F to 176°F)
Leakage Class
ANSI/FCI 70-2 Class IV, V, VI
Certifications
CE, UL, CSA, ISO 9001, ISO 5211

Product Gallery

Quick Info

Product Line
TF-VALVE Series
Valve Types
Control, Ball, Butterfly, Globe
Warranty
2 Years on Valves, 1 Year on Actuators
Lead Time
2-6 Weeks (standard), 8-12 (custom)
Support
Sizing & Selection Assistance

Downloads & Documentation

Product Catalog

Complete Valve & Actuator Range

Download
Installation Manual

Valve Installation & Commissioning

Download
Sizing Guide

Valve Sizing & Selection

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Valve Selection Guide

Choosing the Right Valve

Consider these factors for optimal valve selection:

  • Media type (water, steam, glycol)
  • Pressure & temperature range
  • Required flow characteristics
  • Fail-safe requirements
  • Control accuracy needs

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