Our portable valve grinder tool deliver unrivaled performance and precision, ensuring optimal engine efficiency.
With pre-calibrated angles and dowel accuracy ofpin our state-of-the-art valve grinding machine, we guarantee consistent and accurate grinding.
Our cutting-edge equipment,
the PVG
(Portable Valve Grinder), is compatible with a wide range of engine types, offering flexibility for diverse applications.
Our equipment operates at minimal noise levels, creating a conducive and productive work environment for our technicians.
Backed by our extensive experience and expertise in the field, we offer reliable and high-quality portable valve grinder services you can trust.
We possess the capability to effectively restore valve surfaces, eliminating damage and improving engine performance and longevity.
| Our Method | Conventional Methods | ||
|---|---|---|---|
| Aspect | Portable Valve Grinding (PVG) | Lapping | Lathe |
| Recommended by OEMs | Recommended method | Barred by almost all OEMs | Commonly used |
| Purpose | Grinding for precise contact between valve and valve seat | Removal of pitting & surface damages | Grinding for surface finish and precision |
| Disadvantages | – May not match quality of other methods <br> – Time-saving (2-4 hours per valve seat) <br> – Single line contact for increased surface area | – Not recommended by OEMs <br> – Time-consuming <br> – Potential for user negligence affecting valve guides and stem life | – Thermal cracks possible <br> – Operator-dependent precision <br> – Aging machines may hamper quality |
| Precision | Precise | Less precise | Precise |
| Impact on Valve Life | Improves valve and valve seat contact for enhanced life | May compromise remaining salvage life due to pitting allowances | May impact salvage life due to thermal cracks |
| Contact Area | Single line contact for increased contact surface area | Diffused contact surface | Focused contact area |
| Time Efficiency | Time-saving, typically saves 2-4 hours per valve seat | Time-consuming, many hours per valve seat | Time-consuming, but varies |
| Safety and Quality | Improved quality, safety, and reliability | May compromise safety due to user negligence | Quality dependent on operator and machine condition |
| Machine Capacity | Stem diameter up to mm, Valve disc diameter up to 250 mm |
|---|---|
| Air Pressure | 0,6 – 0,8 MPa (6-8 BAR OR 85-130 psi) |
| Air Consumption | 700 l/min |
| Weight | Basic machine with case: 28 kgs, Accessories with case: 15-25 kgs |
| Max Dimensions | Cases (LxWxH): 415x400x250 mm |
| Air Hose Connection | 12,5 mm (1/2″) |
| Noise Level | 76 dB(A) / 75 dB(C) |
| Grinding Speed | 2 mm/min (along the valve face) |
Our advanced cylinder honing machines, such as the HON A, provide precise and consistent honing operations, ensuring optimal surface finish and cross-hatch patterns.
Our valve seat lathe services restore the valve seats to their original specifications, ensuring proper sealing and valve operation.
Neptunus Power Plant Services Pvt. Ltd.
India
Neptunus Main Office
A 554/555, TTC Industrial Area,
MIDC Mahape, Navi Mumbai,
Maharashtra 400710, India.
UAE
Neptunus Global Trading (NGT)
Ras Al Khaimah Economic Zone,
RAKEZ Al Mamourah Street,
Ras Al-Khaimah, UAE.
France
dataVIB Impédance
80 Dom. de Montvoisin,
91400 Gometz-la-Ville,
France.
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