Flowserve McCANNA CryoSeal Ball Valves User Manual
USER INSTRUCTIONS
McCANNA CryoSeal® Ball Valves
FCD MMENIM2007-01-AQ – 04/15
Installation
Operation
Maintenance
Experience In Motion
McCANNA CryoSeal® Ball Valves FCD MMENIM2007-01-AQ – 04/15
Contents
1 Introduction 3
1.1 Purpose 3
1.2 User Safety 3
2 Installation Instructions 4
2.1 General 4
2.2 Flanged End Valves 4
2.3 Weld End Valves 4
2.4 Valves with Vented Cavity Relief 5
3 Periodic Inspection and Adjustment 6
3.1 General 6
3.2 Stem Seal Adjustment 6
3.3 Bonnet Gasket Bolting Re-Tightening 7
3.4 Correcting Through Leakage –Soft Seated Valves 7
3.5 Other Specially Prepared Valves 7
4 Disassembly 8
4.1 Disassembly Instructions 8
4.2 Cleaning, Inspection, Lubrication Instructions 9
5 Reassembly 10
5.1 Reassembly Instructions 10
5.2 Standard Valves 10
6 Torque Charts 14
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McCANNA CryoSeal® Ball Valves FCD MMENIM2007-01-AQ – 04/15
Introduction
1.1 Purpose
This Installation, Operation and Maintenance Manual explains how to install and maintain McCANNA
CryoSeal
is provided.
®
ball valves. Information on installation, disassembly, reassembly, lubrication, and parts
1.2 User Safety
Safety notices in this manual detail precautions the user must take to reduce the risk of personal injury
and damage to the equipment. The user must read and be familiar with these instructions before
attempting installation, operation, or maintenance. Failure to observe these precautions could result in
serious bodily injury or death, damage to the equipment, warranty void, or operational difficulty.
Safety notices are presented in this manual in three forms:
a WARNING: Refers to personal safety. Alerts the user to potential danger. Failure to follow
warning notices could result in personal injury or death.
a CAUTION: Directs the user’s attention to general precautions that, if not followed, could result in
personal injury and/or equipment damage.
NOTE: Highlights information critical to the user’s understanding of the valve's installation and
operation.
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McCANNA CryoSeal® Ball Valves FCD MMENIM2007-01-AQ – 04/15
Installation
2.1 General
McCANNA Cryoseal valves may be installed up to 45° from the vertical position. These valves are
unidirectional due to the need for cavity relief and must be installed in the correct orientation.
Installation methods and procedures should follow good industry practice, such as contained in
MSS-SP-92, or similar document.
a CAUTION: Check adjuster nut and bonnet fastener torques prior to testing or installation, and
re-tighten as needed (see tables 2 & 3). These fasteners may loosen during shipment, which
could result in external leakage.
a WARNING: Do not attempt any maintenance of these valves while in operation or under
pressure. Actuated valve air and/or electrical power supplies must be locked off and isolated
prior to any maintenance work. Failure to do so may result in significant equipment damage,
hazardous material discharge, or serious personal injury.
2.2 Flanged End Valves:
Flanged end valves are to be bolted in line to companion flanges of the same pressure class and facing
as the valve flanges, using the proper size and pressure class flange gaskets. Flowserve does not
provide companion flanges or flange gaskets. Flange bolt torquing should follow proper tightening
sequence outlined in Figure 6 on Page 13.
2.3 Weld End Valves:
2.3.1 Before installing weld end valves in line, remove bonnet, ball, and seats. Protect parts from
dirt or damage while out of valve, especially the seating surfaces in the body. Be very careful
to avoid heat distortion of the valve body during welding. A spare bonnet gasket has been
provided and should replace the original gasket during reassembly.
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McCANNA CryoSeal® Ball Valves FCD MMENIM2007-01-AQ – 04/15
2.3.2 If necessary, valves may be welded in line without disassembly, however special precautions
must be taken. The valve should be in the open position during welding and remain open until
it cools to ambient temperature. Welding procedures should be followed by qualified personnel
and in accordance with Section IX of ASME Boiler Pressure Vessel Code. The critical temperature areas (shown in Figure 1) should not exceed 350° F.
a WARNING: Do not attempt any welding on in-line valves under pressure.
2.3.3 When more than one weld is required for each end, the weld passes should alternate from end
to end until the welds are completed.
After the valve has cooled, the bonnet fasteners must be re-torqued to the recommended torque
value (shown in Table 3). When possible, a final seat test should be performed before placing
the valve into service.
Figure 1. Critical Weld Areas
CRITICAL TEMPERATURE AREAS
2.4 Valves with Vented Cavity Relief:
2.4.1 Install vented valves with the arrow on the body pointed in the direction of normal flow. (Figure 2)
Figure 2. Cavity Relief
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