Product Overview

The ZX(RVHX) Concealed Rod Soft Seal Gate Valve is a high-performance valve featuring a non-rising stem design with resilient sealing. Its compact structure and excellent sealing performance make it ideal for water supply, drainage, and other fluid control systems where space is limited.

Key Features

• Concealed Rod Design– Compact structure saves installation space
• Soft Seal Technology– Bubble-tight shutoff with zero leakage
• Corrosion Resistance– Epoxy coated body and stainless steel components
• Low Operating Torque– Easy operation with minimal force
• Maintenance-Free– Durable construction for long service life
• Bidirectional Flow– Suitable for flow in either direction
• Visual Position Indicator– Clear open/close status display

Technical Specifications

Working Principle

The ZX(RVHX) valve operates through a non-rising stem mechanism. When the handwheel is rotated, the threaded stem moves the gate vertically while the stem itself remains at a fixed height. The resilient-seated gate provides tight shut-off against the valve body seat. The concealed stem design prevents external contamination and reduces required installation space.

Structural Features

• Non-Rising Stem– Saves vertical installation space
• Resilient Seated Gate– Ensures bubble-tight sealing
• O-Ring Stem Seal– Prevents leakage along the stem
• Integral Backseat– Allows packing replacement under pressure
• Blowout-Proof Stem– Safety design prevents stem ejection

Applications

• Potable water distribution systems
• Wastewater treatment plants
• Fire protection systems
• HVAC systems
• Industrial process piping
• Irrigation systems

Installation & Maintenance

Installation Requirements

• Install in accessible locations for operation and maintenance
• Ensure proper pipe alignment to avoid stress on valve body
• Support piping properly near valve installation points
• For buried installation, use protective valve boxes

Maintenance

• Exercise valve quarterly if not in regular use
• Inspect stem seal annually for leakage
• Lubricate stem threads every 2 years
• Check flange bolts torque annually