Flowserve Valtek Mark 14 User Manual
USER INSTRUCTIONS
Valtek Mark 14
Control Valves
FCD VLENIM0115-00 – 06/06
Installation
Operation
Maintenance
Experience In Motion
Valtek Mark 14 Control Valves FCD VLENIM0115-00 – 06/06
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Valtek Mark 14 Control Valves FCD VLENIM0115-00 – 06/06
Contents
1 General Information 4
1.1 Using
1.2 Applicability
1.3 Terms Concerning Safety
1.4 Protective Clothing
1.5 Qualified Personnel
1.6 Spare Parts
1.7 Service / Repair
1.8 Storage
2 Unpacking
3 Installation
4 Quick-check
5 Valve Maintenance
6 Disassembly and Inspection
7 Reassembly and Installation
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Figures
Figure 1 – Bonnet and Seat Retaining Rings 8
Figure 2 – Pressure Seal Assembly 11
Figure 3 – Bonnet Bolting 12
Figure 4 – Exploded View 13
Figure 5 – Cross Section
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Tables
Table 1 – Severe Service Trim Bolt Torque Values 10
Table 2 – Seat and Bonnet Torque Values 1
Table 3 – Plug Adjustment 1
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Valtek Mark 14 Control Valves FCD VLENIM0115-00 – 06/06
1 General Information
1.1 Using
The following instructions are designed to assist in unpacking, installing and performing
maintenance as required on Flowserve products. Product users and maintenance personnel
should thoroughly review this bulletin prior to unpacking, installing, operating, or performing
any maintenance. In most cases, Flowserve valves, actuators and accessories are designed for
specific applications (e.g. with regard to medium, pressure, and temperature). For this reason,
they should not be used in other applications without first contacting the manufacturer. The
product Installation, Operation, and Maintenance Instructions provides important additional
safety information.
1.2 Applicability
The following instructions are applicable to the maintenance and installation of Flowserve
Valtek Mark 14 control valves. These instructions cannot claim to cover all details of all
possible product variations, nor 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 using the product for is defined purpose. If
there are any uncertainties in this respect, particularly in the event of missing product-related
information, clarification must be obtained via the appropriate Flowserve sales office. All
Flowserve User Manuals are available at www.flowserve.com.
1.3 Terms Concerning Safety
1.3.1 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
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occur if proper precautions are not taken.
WARNING: Indicates that death, severe personal injury and/or substantial property damage can
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occur if proper precautions are not taken.
CAUTION: Indicates that minor personal injury and/or property damage can occur if proper
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precautions are not taken.
NOTE: Indicates and provides additional technical information, which may not be obvious, even to
qualified personnel.
1.3.2 Compliance with other notes, which may not be particularly emphasized, with regard to trans
port, assembly, operation and maintenance and with regard to technical documentation (e.g.
in the operating instructions, product documentation, or on the product itself) is essential, in
order to avoid faults, which can directly or indirectly cause severe personal injury or property
damage.
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Valtek Mark 14 Control Valves FCD VLENIM0115-00 – 06/06
1.4 Protective Clothing
Flowserve products are often used in problematic applications (e.g. under extremely high
pressures with dangerous, toxic or corrosive mediums). When performing service, inspection
or repair operations always ensure that the valve and actuator are depressurized and that the
valve has been cleaned and is free from harmful substances. In such cases, pay particular
attention to personal protection (e.g. protective clothing, gloves, glasses etc.).
1.5 Qualified Personnel
Qualified personnel are people who, on account of their training, experience and instruction
and their knowledge of relevant standards, specifications, accident prevention regulations and
operating conditions, have been authorized by those responsible for the safety of the plant to
perform the necessary work and who can recognize and avoid possible dangers.
1.6 Spare Parts
Use only Flowserve original spare parts. Flowserve cannot accept responsibility for any
damages that occur from using spare parts or fastening materials from other manufactures. If
Flowserve products (especially sealing materials) have been on store for long periods of time
check them for corrosion or deterioration before putting them into use.
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 non-factory parts, or using maintenance
procedures other than those outlined in these Installation, Operation, and Maintenance
Instructions could drastically affect performance, be hazardous to personnel and equipment,
and may void existing warranties. Between the actuator and the 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.
WARNING: Before products are returned to Flowserve for repair or service, Flowserve must be
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provided with a certificate that 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. Products not
manufactured from stainless steel are provided with an epoxy resin coating. This means that
Flowserve products are well protected from corrosion. Nevertheless, Flowserve products must
be stored adequately in a clean, dry environment. Plastic caps are fitted to protect the flange
faces and prevent the ingress of foreign materials. These caps should not be removed until the
valve is actually mounted into the system.
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