Flowserve ZK 313 User Manual

ZK 313 GB

Installation Instructions 810702-00

Control Valve with ZK Radial Stage Nozzle

Contents

Page

Important Notes

Usage for the Intended Purpose.............................................................................................. 3

Safety Note.............................................................................................................................. 3

Warning ................................................................................................................................... 4

Ratings Pursuant to Article 9 of the Pressure Equipment Directive ......................................... 4

Explanatory Notes

Scope of Supply ...................................................................................................................... 5

Description............................................................................................................................... 5

Function................................................................................................................................... 6

Technical Data......................................................................................................................... 7

Pressure/Temperature Rating ................................................................................................. 7

Material.................................................................................................................................... 8

Corrosion Resistance .............................................................................................................. 8

Nominal Sizes.......................................................................................................................... 8

Connections............................................................................................................................. 8

Operation................................................................................................................................. 8

Capacity Charts ....................................................................................................................... 9

Kvs Values and Actuator Selection Data ................................................................................ 10

Operating Procedure

Installation ....................................................................................................................... 11, 12

Commissioning ...................................................................................................................... 12

Operation............................................................................................................................... 13

Maintenance .................................................................................................................... 13, 14

Repairs

Repair.................................................................................................................................... 15

Spare Parts............................................................................................................................ 15

Important Notes

Usage for the Intended Purpose

The control valve, series ZK 313, is intended solely for cutting off and/or regulating the flow of fluids consisting of water, steam, or steam condensate. Its use is permissible only within the allowable limits of pressure and temperature and only if the chemical and corrosive influences on the pressure equipment are taken into account. Before installation and operation, a check must be performed to ascertain that the valve is resistant to the medium in the operational conditions that will exist. Opening of the valve body and/or structural changes may be performed only if the manufacturer's written permission is obtained. Any type of use differing from the usage described above must be considered as improper. The resulting risk will have to be borne by the user alone. The manufacturer hereby expressly rejects any claims for any resulting damage.

Safety Note

The control valve ZK 313 must not be installed, removed, commissioned, operated or maintained by anyone other than qualified staff.

"Qualified staff" are persons who are familiar with the procedures for installation, removal, commissioning, operation and maintenance of the product, and who have qualifications appropriate for their work, for example staff who have received the following:

 Training as specialists.

 Training or instruction in the use of appropriate safety procedures in accordance with the

standards of safety engineering.

 Training or instruction in first aid and in accident prevention regulations.

For installation, removal, commissioning, operation and maintenance, every person who works with the control valve must have read and understood the complete installation instructions. Furthermore, responsibilities must have been defined clearly and unambiguously and must be adhered to.

In addition to these installation instructions, the documents issued by the manufacturers of the actuators, and in particular the safety information contained in these documents, must be observed.

Usage of the control valve ZK 313 for the intended purpose includes compliance with the rules and notes in these installation instructions for installation, removal, commissioning, operation and maintenance.

The operating company must ensure that, whenever the control valve ZK 313 is being operated, it is in perfect condition.

Working methods that jeopardise safety must not be used.

Important Notes

Warning

Danger

If the control valve is used in an inexpert or improper manner by unqualified staff, it can cause danger to life and limb for the user or for third parties, possibly resulting in death.

During operation, the control valve ZK 313 is under pressure. In this condition, screws, nuts or bolts must not be slackened. Hot water or steam could flow out and could cause severe scalding over the entire body.

During operation, the valve might be hot. If the valve is touched when in the operational condition, severe burns are possible. It must be ensured that, when handwheels are being operated, the operator wears gloves.

Any installation or removal work may only be performed when the equipment is at zero pressure and has cooled down. When such work is to be done, the pressure in the pipes upstream and downstream of the valve must have been reduced to zero and the valve must have cooled down sufficiently. It must be ensured that, during the work, the system section in which pressure has been reduced to zero cannot be accidentally put back into operation. The shut-off valves needed for this purpose must be separately secured and marked. In addition, it must be ensured that the actuators of the valve are not in the connected state. The connection to the energy supply (electric, pneumatic, hydraulic) must be disconnected and must be secured to prevent it from being operated accidentally. One or more warning notices, for example containing the text "DO NOT SWITCH ON", must be displayed in a clearly visible manner at each operating element.

(continued)

Ratings Pursuant to Article 9 of the Pressure Equipment Directive

Gaseous Liquid

Fluid

1212

Use