This machine realizes automatic lapping of valve discs and valve seats with an automatic control unit. It improves lapping precision for safety valve sealing surfaces, avoids shortcomings of manual lapping, reduces labor intensity and boosts working efficiency. It can be matched with safety valve test benches.
Automatic Safety Valve Sealing Surface Lapping Machine
Description
一. Application Scope
- Lapping of valve seats and discs for all flat hard-seated safety valves
- Applicable lapping size: DN25 ~ DN150mm
二. Technical Parameters
- Rough lapping plate diameter: Φ300mm
- Fine lapping plate diameter: Φ300mm
- Lapping nominal diameter: DN25 ~ DN150mm
- Lapping station: Double stations; independent operation for valve seat and valve disc
- Applicable lapping compound: 280#, 400#, 600#, 800#, 2000#
- Power supply: AC220V, 50HZ
- Single lapping pressing depth: 1mm
- Workpiece flatness: 0.03mm
- Workpiece roughness after lapping: Ra0.8
- Workpiece thickness tolerance: ±0.05mm
- Adjustable motor speed for valve seat lapping: 1250 RPM
- Adjustable motor speed for valve disc lapping: 1450 RPM
- Lapping time setting: 1 ~ 1799 minutes
- Adjustable lapping pressure for valve seat: 0~0.6MPa
- Rotation direction for valve seat & disc lapping: Forward / Reverse rotation optional
- Mechanical arm for valve seat lapping: Stroke ≤345mm, adjustable angle ＜30°
- Lapping head lifting stroke: ＜35mm; cross universal joint guiding adopted
- Overall dimension: 1800×600×1600mm
三. Performance Features
- Double-station structure. Valve disc and valve seat can be lapped independently, supporting both rough lapping and fine lapping.
- Multiple valve discs can be processed simultaneously on the disc station to improve efficiency. Rough and fine lapping plates can be quickly exchanged on the same station.
- Supports simultaneous lapping of 3 pcs Φ110 valve discs.
- Valve seat lapping and valve disc lapping can operate independently.
