Product Overview

The MZ-250 is a portable chain-drive valve grinding machine designed for efficient repair of medium-size gate valve sealing surfaces.

With a grinding range of Φ95–270 mm, the machine is suitable for DN90–250 gate valves and provides an effective solution for restoring damaged valve seats and gate valve discs.

The chain-drive structure provides stable transmission and allows flexible operation for on-site valve maintenance.

Applications

• Gate valve seats

• Gate valve discs

• Valve sealing surface restoration

• On-site valve maintenance

Product Features

• Chain-drive structure for stable grinding operation

• Portable design for field maintenance

• Suitable for medium-size gate valves

• Adjustable grinding range for different valve sizes

• Extended working depth for various valve structures

• Efficient repair solution with reduced downtime

Technical Specifications

Model: MZ-250

Applications: Gate valve seats and gate valve discs

Grinding range: Φ95–270 mm

Valve size: DN90–250 (3.5″–10″)

Drive type: Chain drive

Power supply: AC 220 V / 50 Hz

Motor power: 1100 W

Maximum grinding depth: 600 mm

Minimum broaching size: 45 mm

Equipment weight: 45 kg

Advantages

The MZ-250 combines portability and stable transmission performance, making it suitable for industrial valve repair operations where valve removal is difficult or time-consuming.

It helps maintenance teams restore sealing performance quickly while reducing equipment downtime and maintenance costs.

Typical Industries

The MZ-250 is widely used in power generation, petroleum, petrochemical, chemical processing, metallurgy, shipbuilding, and other industrial valve maintenance applications.

Technical Support

We provide technical documentation, product selection support, operation guidance, and after-sales service.

Please provide your valve size, sealing surface dimensions, and working requirements for a suitable recommendation.