USER INSTRUCTIONS
Installation
Operation
Maintenance
McCANNA
™
Top-Entry Valve
MMENIM2007-10-4/16 A4
Experience In Motion
McCANNA™ User Instructions Top-Entry Valve – MMENIM2007-10-4/16 A4
Contents
1 INTRODUCTION
1.1 General ................................................................................3
1.2 Terms Concerning Safety .....................................................3
1.3 Protective Clothing ..............................................................3
1.4 Qualified Personnel ..............................................................3
1.5 Installation ...........................................................................3
1.6 Spare Parts ..........................................................................3
1.7 Service/Repair .....................................................................3
1.8 Storage ................................................................................4
1.9 Valve and Actuator Variations ..............................................4
2 INSTALLATION
2.1 General ................................................................................4
2.2 Flanged End Valves ..............................................................4
2.3 Weld End Valves ..................................................................4
Figures
Figure 1: Critical temperature area ...................................................4
Figure 2: Relief hole in body ............................................................5
Figure 3: Ball stop installation with tamper-resistant cover .............6
Figure 4: Exploded view ..................................................................7
Figure 5: Stem seal assemble for plastic materials
in McCANNA SEAL .............................................................8
Figure 6: Seat offering .....................................................................9
Tables
Table 1: Recommended Lubricants for Standard Service Valves .....9
Table 2: Typical Stem Seal Assembly Quantities ..............................9
2.4 Valves With Vented Cavity Relief .........................................4
3 PERIODIC INSPECTION AND ADJUSTMENT
3.1 General ................................................................................5
3.2 Stem Seal Adjustment .........................................................5
3.3 Bonnet Gasket Bolting Re-tightening ...................................5
3.4 Correcting Through Leakage — Soft-seated Valves
and TMBV Seats ..................................................................5
3.5 Correcting Through Leakage — Graphite, Metal or
Ceramic Seated Valves on McCANNA SEAL ........................5
3.6 Other Specially Prepared Valves ..........................................6
4 DISASSEMBLY
4.1 Disassembly Instructions ....................................................6
4.2 Cleaning, Inspection and Lubrication Instructions................6
5 REASSEMBLY
5.1 Standard Valves ...................................................................7
5.2 Hard Seated Valves, Metal, Carbon Graphite or Ceramic .....8
Table 3: Minimum Stem Nut Torque Requirements for Plastic
Seal Materials (ft.-lb.) .......................................................10
Table 4: Minimum Stem Nut Torque Requirements for Flexible
Graphite Seals (ft.-lb.) ......................................................11
Table 5: Minimum Stem Nut Torque Requirements for Flexible
Graphite Seals (ft.-lb.) ......................................................12
5.3 McCANNA SEAL Fireseal-type Valves —
2
Special Instructions .............................................................8
ADDENDUM 1............................................................11
1 INTRODUCTION
McCANNA™ User Instructions Top-Entry Valve – MMENIM2007-10-4/16 A4
1.1 General
The following instructions are designed to assist in unpa-
cking, installing and performing maintenance as required
on McCANNA products. Product users and maintenance
personnel should thoroughly review this bulletin prior to
installing, operating or performing any maintenance.
DANGER: In most cases Flowserve valves and actuators
are designed for specific applications (e.g., with regard
to medium, pressure, temperature). For this reason they
should not be used in other applications without first
con tacting the manufacturer.
1.2 Terms Concerning Safety
The safety terms DANGER, WARNING, CAUTION and NOTE
are used in these instructions to highlight particular dangers
and/or to provide additional information on aspects that
may not be readily apparent.
DANGER: indicates that death, severe personal injury and/or
substantial property damage will occur if proper precautions
are not taken.
WARNING: indicates that death, severe personal injury and/
STOP!
CAUTION: indicates that minor personal injury and/or prop-
or substantial property damage can occur if proper precautions are not taken.
erty damage can occur if proper precautions are not taken.
1.4 Qualified Personnel
Qualified personnel are people who, on account of their
training, experience and instruction and their knowledge
of relevant standards, specifications, accident prevention
regu lations and operating conditions, have been authorized
by those responsible for the safety of the plant to perform
the necessary work and can recognize and avoid possible
dangers.
1.5 Installation
DANGER: Before installation check the order-no., serial-no.
and/or the tag-no. to ensure that the valve/actuator is correct
for the intended application.
Do not insulate extensions that are provided for hot or cold
services.
Pipelines must be correctly aligned to ensure that the valve
is not fitted under tension.
1.6 Spare Parts
Use only McCANNA original spare parts. Flowserve cannot
accept responsibility for any damages that occur from using
spare parts or fastening materials from other manufacturers.
If McCANNA products (especially sealing materials) have been
stored for longer periods, check for corrosion or deterioration
before using these products. Fire protection for McCANNA
products must be provided by the end user.
NOTE: indicates and provides additional technical infor-
mation, which may not be very obvious, even to qualified
personnel. Compliance with other, not particularly
emphasised notes, with regard to transport, assembly,
operation and maintenance and with regard to technical
documentation (e.g., in the operating instruction, product
documentation or on the product itself) is essential, in
order to avoid faults, which might directly or indirectly
cause severe personal injury or property damage.
1.3 Protective Clothing
McCANNA products are often used in problematic appli-
cations (e.g., extremely high pressures, dangerous, toxic
or corrosive mediums). In particular, valves with bellows
seals point to such applications. When performing service,
inspection or repair operations, always ensure that the
valve and actuator are depressurized and the valve has
been cleaned and is free from harmful substances. In
such cases pay particular attention to personal protection
(protective clothing, gloves, glasses, etc.).
1.7 Service/Repair
To avoid possible injury to personnel or damage to products,
safety terms must be strictly adhered to. Modifying this
product, substituting nonfactory parts, or using maintenance
procedures other than outlined in this instruction could drastically affect performance and be hazardous to personnel
and equipment, and may void existing warranties. Between
actuator and valve there are moving parts. To avoid injury
Flowserve provides pinch-point protection in the form of
cover plates, especially where side-mounted positioners are
fitted. If these plates are removed for inspection, service or
repair, special attention is required. After completing work the
cover plates must be refitted.
Apart from the operating instructions and the obligatory
accident prevention directives valid in the country of use,
all recognized regulations for safety and good engineering
practices must be followed.
3
flowserve.com
McCANNA™ User Instructions Top-Entry Valve – MMENIM2007-10-4/16 A4
WARNING: Before products are returned to Flowserve for
STOP!
repair or service McCANNA must be provided with a certificate which confirms that the product has been decontaminated and is clean. Flowserve will not accept deliveries if
a certificate has not been provided (a form can be obtained
from Flowserve).
1.8 Storage
In most cases Flowserve products are manufactured from
stainless steel. Carbon steel products are provided with a
black oxide coating. This means that McCANNA products
are well-protected from corrosion. Nevertheless, McCANNA
products must be stored adequately in a clean, dry environment. Plastic caps are fitted to protect the flange faces to
prevent the ingress of foreign materials. These caps should
not be removed until the valve is actually mounted into the
system.
1.9 Valve and Actuator Variations
These instructions cannot claim to cover all details of all
possible product variations, nor in particular can they provide information for every possible example of installation,
operation or maintenance. This means that the instructions
normally include only the directions to be followed by
qualified personal where the product is being used for
its defined purpose. If there are any uncertainties in this
respect, particularly in the event of missing productrelated infor mation, clarification must be obtained via the
appropriate FLOWSERVE sales office.
These 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 furnish companion flanges or flange
gaskets. Flange bolt torquing should follow proper
tightening sequence.
2.3 Weld End Valves
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. Metal,
carbon-graphite or ceramic seats are lapped sets matched
to the valve, and must be re-installed exactly as removed.
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.
2.3.1 If necessary, valves supplied with graphite, metal or ceramic
seats, and certain plastic seats, 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.
2 INSTALLATION
2.1 General
McCANNA SEAL valves may be installed in any position
without affecting valve operation or performance.
McCANNA TMBV valves can be installed either vertically or
horizontally.
Pipeline flow may be in either direction, unless otherwise
in-dicated. Installation methods and procedures should
follow good industry practice, such as contained in MSS SP-92, or similar document.
CAUTION: Check stem nut or packing adjuster fasteners
and bonnet fastener torques prior to testing or installation,
and re-tighten as needed (see Tables 3, 4, 5 and 6). These
fasteners may loosen during shipment, which could result
in external leakage. For valves operating at temperatures
above 400°F (204°C), bonnet bolting and stem nut torques
should be re-checked and tightened as necessary after the
valve has been in operation 2–3 days.
WARNING: Do not attempt any maintenance of these valves
STOP!
4
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. To do otherwise may result
in significant equipment damage, hazardous material
discharge or serious personal injury.
Figure 1: Critical temperature area
2.3.2 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 retorqued to the recommended torque value (shown
in Tables 5 and 6). When possible, a final seat test should be
performed before placing the valve into service.
2.4 Valves With Vented Cavity Relief
Install vented valves with the arrow on the body pointed in
the direction of normal flow as (shown in Figure 2).
2.2 Flanged End Valves
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