Description
PN16 Cast Iron 3-Port Control Valve for Commercial HVAC & Hydronic Systems
The Crane D103B Cast Iron 3-Port Control Valve is a high-performance PN16 three-port control valve designed for precise flow control in commercial and industrial hydronic systems. Featuring a durable cast iron body, BSP female threaded connections, and compatibility with Crane’s range of electric actuators, the D103B offers an efficient solution for zone control, terminal bypass, and end-of-line bypass applications.
Designed for Building Management System (BMS) integration, the valve provides reliable modulation, compact installation, and excellent hydraulic performance in both heating and chilled water systems. It is suitable for water and water-glycol solutions containing up to 30% glycol.
Key Features
- Cast iron 3-port control valve
- Pressure rating: PN16
- Size range: DN20–DN50
- Operating temperature: 5°C to 95°C
- BSP Female Parallel thread (ISO 228)
- Class IV leakage up to 225 kPa
- Compact and lightweight construction
- Suitable for water and glycol solutions (up to 30%)
- Designed for variable flow and constant flow HVAC systems
- Easy installation in confined plant rooms and terminal units
- Manufactured for reliable long-term performance
- Compatible with Crane electric actuators for BMS integration.
Benefits
Accurate Hydronic Flow Control
The D103B provides precise modulation of heating and chilled water flow, ensuring stable room temperatures and improved comfort while optimizing overall HVAC system efficiency.
Ideal for Bypass Applications
The valve is specifically designed for:
- Zone control
- Terminal bypass
- End-of-line bypass
These applications improve water circulation throughout the system, helping maintain minimum pump flow and enhancing heating or cooling response.
Easy BMS Integration
The D103B Cast Iron valve is compatible with Crane actuators including:
- ACT993M – Modulating actuator
- ACT993TP – 3-Point actuator
- ACT993FS – Fail-safe actuator
These actuator options provide flexible control for modern Building Management Systems (BMS).
Reliable Isolation
The valve offers Class IV leakage performance up to 225 kPa, ensuring dependable shut-off and accurate control throughout its operating life.
Compact Installation
Its lightweight cast iron construction and threaded BSP connections make installation straightforward, even within compact mechanical rooms and terminal unit enclosures.
Typical Applications
The Crane D103B Cast Iron is suitable for:
- Air Handling Units (AHUs)
- Fan Coil Units (FCUs)
- Commercial HVAC systems
- Heating water systems
- Chilled water systems
- Variable flow systems
- Constant flow systems
- Terminal bypass applications
- End-of-line bypass systems
- Office buildings
- Hotels
- Hospitals
- Schools
- Industrial building services.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Crane Fluid Systems |
| Model | D103B Cast Iron |
| Product Type | 3-Port Control Valve |
| Body Material | Cast Iron |
| Valve Type | Three-Port Control Valve |
| Size Range | DN20–DN50 |
| Pressure Rating | PN16 |
| Operating Temperature | 5°C to 95°C |
| End Connection | BSP Female Parallel ISO 228 |
| Kvs Values | 6.3, 10, 14, 18, 25 m³/h |
| Leakage Class | Class IV (up to 225 kPa) |
| Medium | Water / Water-Glycol (up to 30%) |
| Applications | HVAC Heating & Chilled Water Systems |
Compatible Actuators
The D103B Cast Iron valve is designed for use with Crane electric actuators:
| Actuator | Control Type |
|---|---|
| ACT993M | Modulating |
| ACT993TP | 3-Point |
| ACT993FS | Fail-safe |
These actuator options provide accurate control and seamless integration into modern BMS installations.
Product Attributes
| Attribute | Value |
|---|---|
| Brand | Crane Fluid Systems |
| Model | D103B Cast Iron |
| Product Type | 3-Port Control Valve |
| Valve Function | Mixing / Diverting |
| Body Material | Cast Iron |
| Pressure Rating | PN16 |
| Valve Size | DN20–DN50 |
| Temperature Range | 5°C to 95°C |
| Kvs Range | 6.3–25 m³/h |
| End Connection | BSP Female Parallel ISO 228 |
| Leakage Class | Class IV |
| Compatible Actuators | ACT993M, ACT993TP, ACT993FS |
| Medium | Water / Water-Glycol (up to 30%) |
| Applications | HVAC, AHU, FCU, Zone Control, Terminal Bypass |
| Country of Brand | United Kingdom |
Why Choose the Crane D103B Cast Iron?
The Crane D103B Cast Iron 3-Port Control Valve combines robust construction, reliable hydraulic performance, and seamless actuator compatibility to deliver efficient control in modern HVAC systems. Its compact design, Class IV shut-off, PN16 pressure rating, and support for glycol-based systems make it an ideal choice for engineers and contractors seeking dependable three-port control valves for commercial and industrial building services. Integrated with Crane’s ACT993 actuator series, the D103B provides accurate flow regulation, simplified commissioning, and long-term operational reliability.
