Topworx TV-Series Rotary Valve Position Monitor Switchbox
The Topworx TV-Series Switchbox is an industrial valve position monitor manufactured by Emerson under the Topworx discrete automation platform.
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- 1 YearWarranty
Product Overview
The Topworx TV-Series Switchbox is an industrial valve position monitor manufactured by Emerson under the Topworx discrete automation platform. Engineered for quarter-turn rotary pneumatic actuators, automated ball valves, butterfly valves, and plug valves, the TV-Series delivers dependable discrete electrical position feedback alongside high-visibility local visual indication. It provides process plants with a compact, cost-effective, and versatile solution for valve open and closed status signaling to distributed control systems (DCS) and programmable logic controllers (PLCs).
Designed with robust enclosure options including industrial-grade tropicalized aluminium or engineered non-corrosive resin, the TV-Series features a standardized NAMUR drive shaft that conforms to VDI/VDE 3845 dimensions for direct actuator coupling. The unit incorporates quick-set, color-coded cams that permit rapid, tool-free field adjustment and calibration of switch trip points. Available with mechanical microswitches, proximity sensors, or intrinsically safe options, the TV-Series operates reliably across water treatment facilities, chemical processing lines, food and beverage plants, power utilities, and general factory automation circuits.
Technical Specifications
| Specification | Value |
| Product Name | Rotary Valve Position Monitor / Limit Switchbox |
| Manufacturer / Brand | Topworx / Emerson |
| Product Series | TV-Series (including TVF and TVL Platforms) |
| Device Type | Discrete Quarter-Turn Valve Position Switchbox |
| Enclosure Material Options | Tropicalized Cast Aluminium Alloy or Engineered Resin |
| Switch / Sensor Options | Mechanical SPDT Microswitches, DPDT Switches, Inductive Proximity Sensors |
| Electrical Contact Rating | Up to 10A at 125/250 VAC, 0.5A at 125 VDC (Mechanical Variants) |
| Visual Indicator | High-Visibility Impact-Resistant Red / Green Rotary Beacon |
| Actuator Interface Standard | NAMUR VDI/VDE 3845 Standard Rotary Drive Shaft |
| Drive Shaft Material | 304 or 316 Stainless Steel |
| Electrical Conduit Entries | 2 × M20 × 1.5 or 2 × 1/2 Inch NPT Female Entries |
| Ingress Protection Rating | IP66 / IP67 / NEMA 4, 4X Weatherproof |
| Hazardous Location Options | Intrinsically Safe (ATEX, IECEx, CSA) or General Purpose |
| Terminal Strip Configuration | Multi-Point Screw Terminal Block with Pre-Wired Ground |
| Target Valve Motion | 90-Degree Quarter-Turn Rotary Actuators |
| Operating Temperature Range | -20°C to +80°C (-4°F to +176°F) |
| Optional Extreme Temp Limit | Down to -40°C with Low-Temperature Seals |
| Mounting Bracket Pattern | Standard NAMUR Bracket Footprint (80×30 mm / 130×30 mm) |
| Approximate Net Weight | 0.85 kg to 1.30 kg (Material Dependent) |
| Condition | New |
| Warranty | 1 Year |
Key Features
Compact and lightweight design provides reliable valve monitoring in space-restricted installations
High-visibility continuous red and green rotary beacon delivers clear 360-degree local status viewing
Quick-set color-coded cams enable fast, tool-free on-site calibration of open and closed switch points
Dual conduit entries provide ample clearance and flexible wiring routing for field cabling
Standardized NAMUR VDI/VDE 3845 interface ensures seamless mounting on rotary pneumatic actuators
Weatherproof IP66 and IP67 construction protects internal electrical switches from moisture and dust
Offered in durable cast aluminium or engineered polymer enclosures to resist corrosive atmospheres
Versatile internal electrical configurations supporting mechanical switches and inductive sensors
High vibration immunity prevents false tripping and keeps contact setpoints securely locked
Typical Applications
Position monitoring for quarter-turn ball, butterfly, and eccentric plug valves
Discrete valve status feedback to DCS and PLC automation systems
Water and wastewater treatment filtration skids, pump stations, and chemical dosing manifolds
Chemical, specialty petrochemical, and solvent storage facility block valves
Food, dairy, and beverage sanitary process lines and utility water routing
Power generation cooling water loops, auxiliary steam, and condensate isolation lines
General manufacturing machinery, pneumatic packaging lines, and industrial conveyor gates
Shipping & Support
Fast dispatch: Australia & Worldwide Shipping
Technical assistance available
1-year warranty
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