GLAND PACKING MEASURING TOOL “ETALON”
ТУ 3925-015-93978201-2011
“ETALON” pack cutting straightedge is intended for cutting a small tool material when making soft gland seals. The straightedge is designed so as to cut a large tool to a required length without preliminary calculations and to provide a preset shear angle of a packing face.
The straightedge is in essence a П-shaped aluminum profile and a movable locking thrust plate located thereon.
To cut a large tool for armature piston-rods and pump shafts, the straightedge has two special scales with relevant names.
“ETALON” straightedge is made in two versions differing by geometry and cross-section of a work pack.
Etalon-1
5-19 mm
Packing cross-section (the difference between the diameter of the packing chamber and the shaft (rod)/2)
5 – 130 mm
Shaft diameter
650 mm
Ruler length
25 mm
Ruler width
0,3 kg
Ruler weight
Etalon-2
8-26 mm
Packing cross-section (the difference between the diameter of the packing chamber and the shaft (rod)/2)
60 – 250 mm
Shaft diameter
1200 mm
Ruler length
50 mm
Ruler width
1,7 kg
Ruler weight
Principle of operation
- To perform cutting, it is necessary to know the diameter of armature piston-rod (or pump shaft) and the required cross-section of packing, based on the actual size of the gland-packing chamber. On the straightedge, match the scale mark corresponding to the piston-rod diameter with the scale mark on the thrust plate, corresponding to the size of the packing cross-section.
- To lock the thrust plate, rotate the lock screw.
- Cut the end of packing with a knife to a required angle. In doing so, use a special guide slot located on the edge of the straightedge.
- Then push ahead the packing along the straightedge body until it contacts with the face of the thrust plate and cut it with the knife through the special guide slot.
