Portable valve lapping machine,Grinding Machine for Gate valves

A Portable Valve Lapping Machine is a highly efficient tool designed for grinding and lapping the sealing surfaces of gate valves, globe valves, safety valves, and other types of valves. It ensures leak-free valve performance by restoring smooth, precise sealing surfaces, making it an essential tool for industries like oil & gas, power plants, petrochemicals, and water treatment.

Technical Specifications:

Parameter Specification
Valve Size Range 20mm to 1250mm (customizable)
Power Source Electric / Pneumatic / Battery Operated
Rotational Speed Adjustable (200 – 1500 RPM)
Grinding Materials Diamond, Silicon Carbide, Aluminum Oxide
Portable Weight 8kg – 30kg (depending on model)

 

Performance Introduction of Portable Gate Valve Lapping Machine

Application Scope of Portable Gate Valve Lapping Machine

  • It is applicable to the seats and spools of gate valves.


Model MZ – 150 MZ – 250 MZ – 600 MZ – 900 MZ – 1200
Grinding Range (mm) Φ60 – 175 Φ95 – 270 Φ220 – 630 Φ430 – 960
(Optional grinding disc)		 Φ630 – 1250
(Optional grinding disc)
Voltage (V) 220 220 220 220 220
Power (W) 1300 1300 1300 1050 1050 (American Milwaukee motor)
Frequency (HZ) 50 50 50 50 50
Distance between Valve Sealing Surfaces (mm) 38 45 70 160 150
Grinding Depth (mm) 420 600 900 1500 2400
Total Packed Weight (kg) 20 31.5 60 200 142

Main Features of Portable Valve Lapping Machine

  • The product has a combined structure, which is easy to disassemble and assemble, and simple to operate.
  • The fixed grinding disc is made of high – strength aluminum alloy. This type of material has high strength, light weight and is not easily deformed.
  • The standard configuration is a Metabo motor, and all bearings are of well – known brands.
  • The grinding consumables are abrasive cloth (paper), with low cost and convenient replacement.
  • It has a fast grinding speed and good quality. The grinding efficiency is higher than that of manual grinding.
  • The product is packed in an aluminum – plastic case, with small volume, light weight and easy to carry.

Applications of Portable Valve Lapping Machine for Overhaul:

✔ Power Plants – Ensures optimal performance of steam and gas valves.
✔ Oil & Gas Industry – Overhauls valves in refineries and pipelines.
✔ Marine & Shipbuilding – Restores valve function in ship engines and piping systems.
✔ Water Treatment & Chemical Processing – Prevents leaks and improves system efficiency.

FQA for Portable Valve Lapping Machine

Q: Can it lap bronze vs stainless steel seats?
A: Yes! Kit includes 3 abrasive grades (80/120/220 grit) for all metal combinations.

Q: Do you provide training?
A: Free 2-hour onsite training with purchase –

Q: What consumables are needed?
A: We include 500g lapping compound. Refill packs available (IDR 120,000 per 1kg tube).