Accessories

Limit switches, positioners, solenoid valves, and other valve automation accessories.

Limit Switch Box - Valve position limit switch box for feedback monitoring

Limit Switch Box

Visual and electrical position feedback for automated valves.

Technical Specifications
Solenoid Valve - Pilot solenoid valve for pneumatic actuator control

Solenoid Valve

Pilot solenoid valves for pneumatic actuator control.

Technical Specifications
Valve Positioner - Electro-pneumatic valve positioner for precise control

Valve Positioner

Pneumatic or electro-pneumatic positioner for precise valve positioning.

Technical Specifications
Manual Gear Operator (Gearbox) - Manual bevel gear operator for large valve operation

Manual Gear Operator (Gearbox)

Bevel or spur gear operator for manual operation of large-diameter ball, gate, butterfly, and plug valves.

Technical Specifications
Handwheel Override for Actuators - Declutchable handwheel override for actuated valves

Handwheel Override for Actuators

Declutchable manual override handwheel for pneumatic and electric actuators — allows manual operation during power/air failure.

Technical Specifications

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Technical Guides

Learn More About Accessories

Technical Guides · 8 min read

Valve Accessories Selection Guide: Positioners, Limit Switches, Solenoids, and Handwheels

Automated valves require a range of accessories to function reliably in industrial control systems. This guide covers valve positioners, limit switches, solenoid valves, air filter regulators, handwheel overrides, locking devices, and I/P converters — with selection criteria for each.

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Technical Guides · 10 min read

Fugitive Emissions from Industrial Valves: ISO 15848, API 641, and Low-E Stem Sealing

Valve stem and shaft seals are the leading source of process plant fugitive emissions of VOCs, methane, and toxic gases. ISO 15848, API 641, and EPA LDAR regulations define the test methods and acceptance criteria for low-emission (Low-E) valves now mandated across the oil, gas, and chemical industries.

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Maintenance & Operations · 10 min read

Valve Packing and Gland Maintenance: A Practical Engineering Guide

Valve packing is the primary stem seal that prevents process fluid from leaking to atmosphere along the valve stem. Selecting the right packing material, correctly loading the gland, and re-packing without taking the valve out of service are critical maintenance skills for safe and environmentally compliant plant operations. This guide covers packing types, fugitive emission standards, and step-by-step maintenance procedures.

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