Description
Watson McDaniel HB Series — 3-Way Control Valve with Electric Actuator (Stainless Steel Body)
The HB Series 3-Way Control Valve is designed for mixing and diverting applications in water and other liquid systems. Built with a durable stainless-steel body and paired with an advanced electric actuator, this valve delivers precise flow control, high close-off pressures, and reliable performance in industrial fluid systems.
Product Overview
- 3-Way control valve for mixing or diverting applications
- High-quality stainless steel body for corrosion resistance
- Available with EC Electric Actuator (Super Capacitor Fail-Last) or ES Electric Actuator (Spring Return Fail-Safe)
- Designed for water and compatible liquids in process and HVAC systems
- Available in sizes from 1/2″ to 4″ with NPT or ANSI 150/300 flange connections
Technical Specifications
- Valve Type: 3-Way Mixing/Diverting Control Valve
- Body Material: Stainless Steel
- Connections: NPT, 150# FLG, 300# FLG (depending on size)
- Sizes: 1/2″ to 4″
- Cv Range: 3.4 to 134 (varies by model)
- Close-Off Pressure: Up to 720 PSIG with EC actuator (varies by size)
- Actuator Options: EC Series (Fail-Last) / ES Series (Spring Return)
- Applications: Water mixing, diverting, temperature control, industrial fluid regulation
Available Actuator Types
- EC Series Electric Actuator: Super-capacitor powered fail-last design for stable close-off even during power loss
- ES Series Electric Actuator: Spring-return fail-safe design for applications needing automatic return position
Model Options (Examples)
The HB Series includes many combinations depending on size, connection type, and actuator selection. Example full part codes:
- HB1300F-12N — 1/2″ NPT, Cv 3.4, EC actuator
- HB1300F-14N — 3/4″ NPT, Cv 6.5, EC/ES actuator options
- HB1300F-201 — 4″ 150# FLG, Cv 179, EC actuator
- HB1300F-203 — 4″ 300# FLG, Cv 179, EC actuator
Pricing Notes (Based on Catalog Data)
- EC actuator models include full-port valve + EC actuator pricing
- ES actuator models provide a lower cost option with spring-return safety
- Prices vary significantly by size (1/2″ vs 4″)
Options & Adders
- EC Actuator Only: Add $4,560
- ES Actuator Only: Add $2,160
- Heating Resistor for Outdoor Use: Add $125
- Actuator Communication Kit: Add $400 (Code: EC-COMM-KIT)
- Soft Trim (Teflon): Add 10%
- Graphite Packing: Add 5%
Application Notes
- This valve is ideal for water, glycol, and compatible liquids in industrial mixing and diverting service.
- Shutoff pressure depends on flange rating; consult factory for higher-pressure needs.
- Actuator selection (EC vs ES) should match system safety and fail-position requirements.
Note: The HB Series stainless steel body and precision electric actuators make these valves suitable for demanding fluid control environments, including HVAC, industrial processing, and temperature control systems.

