INDUSTRY COMPONENT

Plug Body

Precision-machined plug body for industrial valve systems controlling fluid flow.

View Specifications

Component Specifications

Definition
The plug body is a critical component in plug valves, serving as the rotating element that regulates fluid flow through the valve. It features a tapered or cylindrical design with a through-port that aligns with the valve body ports to allow flow or rotates to block it. Engineered for precise fit within the valve body, it ensures leak-tight sealing and smooth operation under various pressure and temperature conditions.
Working Principle
Operates by rotating 90 degrees within the valve body to open or close the flow path. The plug's port aligns with the inlet and outlet ports in the open position, allowing fluid passage. In the closed position, the solid section of the plug blocks the ports, stopping flow. Sealing is achieved through mechanical interference, lubricants, or elastomeric sleeves.
Materials
Carbon steel (ASTM A216 WCB), stainless steel (ASTM A351 CF8M), alloy steel, brass, or specialized alloys for corrosive environments. Surface treatments may include hardening, plating, or coating.
Technical Parameters
  • Port Size DN15 to DN600
  • Taper Ratio 1:6 or 1:8
  • Surface Finish Ra 0.8 μm max
  • Pressure Rating PN16 to PN100
  • Temperature Range -20°C to 400°C
Standards
ISO 17292, API 599, DIN 3356

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Plug Body.

plug body valve plug industrial valve component fluid control machining standards valve parts Plug Body in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Valve Plug

The movable component within a control valve that regulates fluid flow by adjusting the orifice opening.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Wear and tear from friction
  • Corrosion in harsh environments
  • Improper installation leading to leaks
FMEA Triads
Trigger: Abrasive particles in fluid
Failure: Surface scoring and increased leakage
Mitigation: Use hardened materials, install filters, and implement regular maintenance.
Trigger: Thermal expansion mismatch
Failure: Seizing or binding during operation
Mitigation: Select materials with compatible coefficients, design with clearances, and control operating temperatures.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05 mm on critical dimensions
Test Method
Hydrostatic testing per ISO 5208, helium leak testing for high-integrity applications

Buyer Feedback

★★★★☆ 4.5 / 5.0 (25 reviews)

"The Plug Body we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

"Found 55+ suppliers for Plug Body on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Plug Body is very thorough, especially regarding technical reliability."

Related Components

Inspection Frame
Structural support component in automated fabric inspection systems that holds cameras, sensors, and lighting for defect detection.
Machine Frame
The rigid structural foundation of a CNC wood router that provides stability, vibration damping, and precision alignment for cutting operations.
pH Sensor Assembly
Precision pH sensor assembly for automated monitoring and dosing systems in industrial applications
Load Cell Assembly
Precision load cell assembly for automated powder dispensing systems

Frequently Asked Questions

What is the primary function of a plug body in a valve?

To regulate fluid flow by rotating to align or block ports in the valve body.

How does a plug body achieve sealing?

Through tapered design, lubricants, or elastomeric sleeves that create a tight fit against the valve body.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Get Quote for Plug Body

Pleated Filter Media Pocket Inserts