Flowserve D Series User Manual
Experience In Motion
D Series
Balanced Pusher Seal
D, DP, DQ, DX, DZ
Installation
Instructions
1 Equipment Check
To first obstruction
SS
For hook sleeve designs
Face of seal housing to be square to the axis
of the shaft to within 0.013 mm per millimeter
(0.0005 inches) of seal chamber bore FIM and
have a √1.6 μm (63 μinch) R finish or better
Gland pilot can be at either of these
register locations, concentric to within
0.13 mm (0.005 inch) FIM of shaft or sleeve OD
Sleeve or shaft finish to be
0.8 μm (32 μinch) R or better
Shaft or sleeve OD
+0.000 mm (+0.000 inch)
-0.050 mm (-0.002 inch) ANSI
+0.000 mm (+0.000 inch) API 610/682
-0.025 mm (-0.001 inch) DIN/ISO
• Bearings must be in good condition
• Maximum lateral or axial movement of shaft (end play) = 0.25 mm (0.010 inch) FIM
• Maximum shaft runout at face of seal housing = 0.05 mm (0.002 inch) FIM
• Maximum dynamic shaft deflection at seal housing = 0.05 mm (0.002 inch) FIM
Seal housing bore to have √3.2 μm
(125
μ
inch) R finish or better
a
a
a
1.1 Follow plant safety regulations:
• lock out motor and valves.
• wear designated personal safety equipment.
• relieve any pressure in system.
• consult plant MSDS les for hazardous material regulations.
1.2 Adjust the bearings, coupling, and impeller so that the shaft is in its operating
axial position. Disassemble equipment to allow access to seal installation area.
1.3 Remove all burrs and sharp edges from the shaft, sleeve, seal housing bore and
face, keyways, and any other feature that may contact sealing gaskets.
Replace worn components. Clean all piping plans.
1.4 Check requirements for shaft, sleeve, and seal housing. See Figure 1.
Seal Chamber Requirements Figure 1
1.5 Check assembly drawing included with the seal for equipment dimensions, seal
design, materials of construction, and piping connections.
1.6 Measure all diameters and distances to ensure they are dimensionally the same
as shown on the seal assembly drawing.
1.7 Handle all seal parts with care, they are manufactured to precise tolerances. The
seal faces are of special importance and should be kept perfectly clean.
2 Mechanical Seal Installation
2.1 Review seal assembly drawing, seal assembly, and equipment prior to installation.
Read all notes on the seal assembly drawing. For hook sleeve designs, conrm the
seal setting length shown on the assembly drawing matches the equipment.
See Figure 1.
2.3 Lightly lubricate external gaskets with a lubricant compatible with both handled
2.4 Install the seal onto the shaft and locate it against the face of the seal chamber.
2
product and gasket material. Generally, silicon grease is suitable.
If applicable, ensure the sleeve is aligned with drive features on the shaft.
Loading...