Jordan-valve Mark DBAQ Series Angle Style Control Valve Manuel d'utilisateur télécharger pdf

IntroductIon

Contained in this manual are installation instructions,

maintenance and parts information for the Mark DBAQ

Series Control Valves. Refer to the appropriate manu-

als for instructions for the accompanying actuator,

positioner and additional accessories.

Only trained or experienced personnel should carry

out the operation and installation of all pressure equip-

ment. If you have any questions regarding the equip-

ment, contact your Jordan Valve Controls representa-

tive.

InstallatIon

Exceeding the recommended pressure and tem-

perature limits from Table 1, or those indicated on

the nameplates of your Control Valve, can result in

personal injury and property damage. Jordan Valve

recommends the installation of a relief valve to protect

against overpressure situations.

Mark DBAQ Series are designed to meet speciﬁc

conditions for ﬂuid control, temperature, pressure and

pressure drop. The limiting factor on these valves can

be the body/trim material combinations. Do not install

these valves in any other applications without ﬁrst con-

sulting with your Jordan Valve representative.

1. Inspect the valves for shipping damage and

foreign debris while uncrating.

2. Ensure the pipeline is free from welding slag,

chips and other debris by blowing out the line

before installation.

3. Position the valve on the line so the ﬂow direc-

tion indicator corresponds to the direction of

the ﬂow of the pipeline.

4. Jordan Valve recommends the installation of

a standard three-valve maintenance bypass.

This will allow the isolation of the control valve

without shutting down the pipeline system.

5. Install approved gaskets between the valve

body and the pipeline ﬂanges.

6. If the actuator has been shipped separately,

refer to the mounting procedure in the appli-

cable instruction manual.

7. If the valve body arrives without packing

installed in the packing box, it will be neces-

sary to install the packing before putting the

valve into service. To complete these proce-

dures, follow the instructions under packing

maintenance in this manual.

8. *Note: It may be necessary to adjust the pack-

ing to prevent leakage. Prior to shipping the

packing was tightened, and may require some

adjustment for speciﬁc conditions.

MaIntenance

Internal valve components are subject to normal

deterioration and must be inspected and replaced

as required. The necessity of inspections and

replacement of parts will depend on the severity of

service conditions. Inspections and maintenance must

be carried out on a regularly scheduled basis.

To ensure the safety of personnel and to protect

against property damage, the following steps should

be carried out before beginning disassembly.

1. To prevent the valve from opening suddenly,

disconnect any operating lines to the actuator.

This would include air pressure, electrical

power or control signal lines.

2. Isolate the valve by using the bypass valve, or

by shutting down the process completely.

Relieve the pressure and drain the process

ﬂuid from both sides of the valve.

3. Relieve the pressure contained in the actuator

by venting the actuator loading pressure

and relieving any power actuator

spring compression.

I & M Mark DBAQ Series

Installation & Maintenance Instructions for the

Mark DBAQ Angle Style Control Valves

3170 Wasson Road • Cincinnati, OH 45209

Phone 513.533.5600 • Fax 513.871.0105 (f)

[email protected] • www.jordanvalve.com

Warning: Jordan Valve Control Valves must only be used, installed and repaired in accordance with these Installa-

tion & Maintenance Instructions. Observe all applicable public and company codes and regulations. In the event

of leakage or other malfunction, call a qualiﬁed service person; continued operation may cause system failure or

a general hazard. Before servicing any valve, disconnect, shut off, or bypass all pressurized ﬂuid. Before disassem-

bling a valve, be sure to release all spring tension.

1 2 3 4 5 6 7 8

Résumé du contenu

Page 1 - MaIntenance

IntroductIonContained in this manual are installation instructions, maintenance and parts information for the Mark DBAQ Series Control Valves. Refer t

Page 2 - Packing Leakage

-2-4. Lock-out procedures should be strictly adhered to while the equipment is being serviced.5. To ensure a good gasket seal, the gasket

Page 3 - Replacing Packing

-3-Stem Diameter Valve Class RatingLbf•Ft N•MInch mm Min Max Min Max1/2 12.7 1500 11 16 15 222500 13 18 18 243/4 19.1 1500 25 37 34 502500 30 45 41 61

Page 4 - Replacing Packing Continued

-4-Mark DBaQ SerieS angle Style Control ValVeSReplacing Packing Continued,4. Unscrew hex nuts (key 8) and remove the bon- net off the valve stem.

Page 5

-5-Replacing Packing Continued,15. Install the packing follower, wiper and packing ﬂange. Lubricate the packing ﬂange studs (key 17) and

Page 6

-6-trIM MaIntenanceDisassembly1. Remove the actuator from the bonnet. Refer to steps 1 thru 5 of Replacing Packing procedure. Observe all wa

Page 7 - Parts orderIng

-7-Parts orderIngThe Mark DBAQ Series Valves are identiﬁed by a serial number located on the valve body. Please reference this number when contacting

Page 8

Parts Listing – 2“ Mark DBAQ Series – Table 3Item Description Part Number Quantity1 Body, Mark DBAQ Series, 2”, LCC, 900/1500# RF 2U967522012 12 Bonne

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Jordan-valve Mark DBAQ Series Angle Style Control Valve Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Panneau de contrôle Jordan-valve Mark DBAQ Series Angle Style Control Valve. Jordan Valve Mark DBAQ Series Angle Style Control Valve User Manual Manuel d'utilisatio

Résumé du contenu

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