KSB GIW MDX, Инструкция по установке и эксплуатации

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MDX [en-US]
41
10.3.1 Mounting the Shaft Sleeve
For Pumps with Impeller Release Ring
WARNING
The segmented release ring fasteners must be carefully inspected for damage or cracking and replaced if not
in good condition. Bolts are made from high grade A286 stainless steel and replacement parts should be
obtained from GIW to ensure quality. The use of alternate materials, including standard black or coated socket
head cap screws is not recommended, due to the possibility of corrosion and/or stress corrosion cracking, which
could lead to sudden failure of the release ring in service.
GIW Release Ring Bolt Mechanical Properties
Yield Strength: 120,000 psi (830 Mpa)
Elongation: 12% minimum in a 2” (50mm) specimen for all diameters
Reduction in Area: 45% minimum for all diameters
Tensile Strength: 160,000 psi (1,100 Mpa)
Material Specification: ASTM A286 (FF-S-86E) / AISI Type 660
CAUTION
If either the taper ring or segmented release ring show signs of damage, they should be replaced.

Clean the shaft with industrial degreaser.

Slide the taper ring in place by mating the radius of the taper ring to the radius of the shaft. The tapered side of the
taper ring should be facing the plug.

Slide the release ring onto the shaft making sure that the tapered surface on the release ring mates against the tapered
surface on the tapered ring so as to provide complete surface contact of the taper ring on the side facing the release
ring.

The angle on the release ring and taper ring must match.

Any fasteners installed in a release ring must be installed with Loc-tite thread locker 242.

A light coat of anti-seize can be applied inside the shaft sleeve.

Do not allow anti-seize from contacting the faces of the release ring, shaft sleeve, impeller contacting face, and the
shaft shoulder. Lubrication of the release ring, shaft sleeve, impeller contacting face, and the shaft shoulder may result
in overloading and breakage of the shaft.

When installing the shaft sleeve, stop when the release ring face and the shaft sleeve face are approximately 1" (25mm)
apart. Inspect the faces to be sure they are still clean and free from grease. If grease is present, the faces must be
cleaned before the sleeve is slid into place.

In many cases, there will be an o-ring which must be placed on the shaft first. As the shaft sleeve is pushed into position
the o-ring will be completely forced into the sleeve recess.
Torque Information is only for use with special high-strength
fasteners supplied by GIW
ENGLISH
Bolt Size Stress Area
Torque with Loctite
242 on Fastener
Hex Key
Size
3/8"-16NC 0.078
inch
² 40
ft-lbs
5/16
inch
1/2"-13NC
0.142
inch
² 105
ft-lbs
3/8
inch
5/8"-11NC
0.226
inch
² 210
ft-lbs
1/2
inch
3/4"-10NC
0.334
inch
² 375
ft-lbs
5/8
inch
1"- 8NC
0.606
inch
² 910
ft-lbs
3/4
inch
METRIC
M10 x 1.50
58
mm
² 70
N-m
5
mm
M12 x 1.75 84
mm
² 125
N-m
6
mm
M16 x 2.00 157
mm
² 310
N-m
8
mm
M20 x 2.50
245
mm
² 605
N-m
10
mm
Release Ring Location
1 Impeller Release Ring
2 Taper Ring
3 O-Ring
4 Shaft Sleeve
5 Shaft
1
2
4
5
3