The LarsLap mechanically driven valve lapping system comprises a number of basic models covering virtually every type of valve from 1/2" to 47+" (1194+ mm) in diameter. The patented LarsLap technology utilizes a mechanically driven system whereby the rotating drive head incorporates individually driven grinding wheels to perform the actual work of the seat grinding. This unique valve lapping tool provides the desired crosshatch pattern on the valve seat considerably quicker than conventional methods of valve grinding. Our versatile accessories for all types of lapping work are the ideal complement to the basic portable valve grinders.

MODEL G	MODEL FL	MODEL SC
Lapping Tool for gate valves, gate valve wedges, globe valves, safety valves and control valves with flat seats, 6"-47+" (10-1194+mm) dependent on model chosen.	Valve Lapping tool for gate valves, gate valve wedges, globe valves, safety valves and control valves with flat seats, 2.5"-10" (65-300mm) and 2.5"-8" (65-200mm) with angle seats, dependent on model chosen.	Lapping Tool for gate valves and gate valve wedges with flat seats, 1"-4" (25-100mm) and OD of 3 degrees.
MODEL K	MODEL FL-H	MODEL D
Globe valves and safety valves with flat seats, 0.5"-4" (10-100mm) and angle seats, 0.5"-2.5" (10-65mm), dependent on model chosen.	For occasional light duty grinding. Globe valves, gate valves, and safety valves with flat and angle seats 2.5"-6 (10-150mm), dependent on model chosen.	Globe valves , control valves and safety valves with flat and/or angle seats, disks, flanges, plugs, 2.5"-32" (65-800mm), dependent on model chosen.
MODEL STC	MODEL STB TABLE	MODEL DS1 GASKET CUTTNG MACHINE
Model STC is a stationary machine for Grinding of Gate valve and wedges. Diameter capabilities of grinding 65 – 600mm / 2 1/2”-24” valves, dependent upon model chosen. The machine is available with air or electric drive unit.	The STB Table has a reinforced frame manufactured of steel and aluminium. One can easily make manual adjustments of the operating arm (laterally and vertically) over the table producing high precision results.	Gasket Cuting Machine is used for the cutting of commercially available gasket sheets
LarsLap Lapblock
For valves and cones - grinds valves and cuts costs

Grinding Technology: Mechanically Driven System
Our valve lapping equipment uses a patented mechanically driven system with all grinding wheels moving at the same rate of speed. This lapping technology produces a perfect crosshatch pattern because the inside and outside of the seat is being ground at the same time. The speed is at least five (5) times faster as a gear or o-ring is driving each grinding wheel. The driving plate pivots instead of the grinding wheels, which puts all the pressure in the middle of the driving plate. This results in a perfectly flat seat – without undesirable effects such as concave or convex seats. These results can return a concave or convex seat, damaged by improper grinding, to the desired flatness. The direction of the motor on the LarsLap valve lapping tools can be easily reversed (compressed air reversible motor drive).

Valve Type Capability: Versatile
Models of the LarsLap lapping equipment are capable of working on Gate Valves, Globe Valves, Check Valves, Safety Valves and Control Valves. One does not require an additional machine or accessory to work on each individual valve type of valve. Each Grinder Model for use with gate valves is equipped with a wedge plate.

Set Up/Mounting
The LarsLap valve lapping equipment may be set up prior to entering the valve requiring only fine adjustments once the machine is mounted in the valve. As the valve lapping equipment is mechanically driven, it is unnecessary to have the grinding wheels centered perfectly. The LarsLap wheels need only to cover the seat in order to work correctly. The valve grinder is quickly and easily mounted. The mounting frame does not need to be removed and reset when changing grinding paper on the grinding heads or grinding opposite side of seat. Mounting is versatile – the valve grinder can be mounted in any direction.

The LarsLap valve grinding equipment is supplied standard with a generous supply of grinding abrasive papers, in micron and micron alumina, 80-120-200 grit. Additional abrasive material and grit is available upon request.