Jordan-valve Mark 70 Series – Sliding Gate Control Valve Manual de usuario descargar pdf

3170 Wasson Road • Cincinnati, OH 45209 USA

Phone 513-533-5600 • Fax 513-871-0105

[email protected] • www.jordanvalve.com

I & M Mark 70

Installation & Maintenance Instructions for

Mark 70 Control Valve with Multispring Actuator

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 qualied service person; continued operation may cause system failure or a

general hazard. Before servicing any valve, disconnect, shut off, or bypass all pressurized uid. Before disassembling

a valve, be sure to release all spring tension.

Please read these instructions carefully!

Your Jordan Valve product will provide you with long,

trouble-free service if it is correctly installed and main-

tained. Spending a few minutes now reading these in-

structions can save hours of trouble and downtime later.

When making repairs, use only genuine Jordan Valve

parts, available for immediate shipment from the factory.

Ideal Installation

To protect the valve from grit, scale, thread chips 1.

and other foreign matter, ALL pipelines and piping

components should be blown out and thoroughly

cleaned before the installation process begins.

Shutoff valves, pressure gauges and by-pass pip-2.

ing should be installed as indicated in the diagram

above to provide easier adjustment, operation, and

testing.

A line strainer should be installed on the inlet side 3.

of the valve to protect it from grit, scale and other

foreign matter. A 0.033 perforated screen is usually

suitable for this purpose. Line strainers are avail-

able from Jordan Valve.

For best control, 3’ 0” straight sections of pipe 4.

should be installed on either side of the valve.

In preparing threaded pipe connections, care 5.

should be exercised to prevent pipe-sealing com-

pound from getting into the pipelines. Pipe-sealing

compound should be used sparingly, leaving the

two end threads clean. Jordan uses, and recom-

mends, thread sealer Teon ribbon.

The ow arrow on the valve body must be pointed 6.

in the direction of ow. Ideally, the valve should be

installed in the highest horizontal line of piping to

provide drainage for inlet and outlet piping, to pre-

vent water hammer, and to obtain faster response.

If possible, install a relief valve downstream from 7.

the valve. Set at 15 psi above the control point of

the valve.

In hot vapor lines, upstream and downstream pip-8.

ing near the valve should be insulated to minimize

condensation.

In gas service, if the control pressure (downstream) 9.

is 25 percent of the inlet pressure or less, expand

the outlet piping at least one pipe size. A standard

tapered expander connected to the outlet of the

valve is recommended.

Where surges are severe, a piping accumulator is 10.

recommended.

On steam control applications, install a steam trap 11.

with sufcient capacity to drain the coil or condens-

er. Be sure to have a good fall to the trap, and no

backpressure. Best control is maintained if the coil

or condenser is kept dry.

Trouble Shooting

Erratic Control

Oversizing causes cycling and hunting and reduces 

the rangeability of the valve. Make certain that your

sizing is correct.

Steam traps downstream may need attention.

Excessive foreign matter on seats. Clean them. 

Valve stroke out of adjustment. Check and readjust 

if necessary.

Valve disc may not be moving freely.

Will Not Operate

Diaphragm ruptured. Replace.

Range springs broken. Replace.

Improper spring setting. Reset.

Main Line

Condensate Return Line

1. Shut off Valve

2. Pipe Union

3. Strainer and Drain Valve

4. Pressure Gauge

5. Jordan Mark 70 DCV

6. Relief Valve

Central Air

By-Pass Line

Steam Trap

PROTECT VALVES WITH LINE STRAINERS

1 2 3 4 5

Indice de contenidos

Pagina 1 - Ideal Installation

3170 Wasson Road • Cincinnati, OH 45209 USAPhone 513-533-5600 • Fax [email protected] • www.jordanvalve.comI & M Mark 70Ins

Pagina 2 - Maintenance

Valve SeatsDISASSEMBLYA. The valve seats in all Jordan regulators are lapped to light band atness. Maintaining such tolerances is of paramount import

Pagina 3 - Actuator

-3-are changing the valve action - see Changing Valve Action section.)Place the disc on the plate, engaging the disc pin. 2. If there is an arrow on t

Pagina 4 - Spring Adjustment

following the instructions below.Remove the air signal line from the actuator and 1. replace with a pressure gauge and an air regulator.Loosen, but do

Pagina 5 - Ordering Spare Parts

Illustration and Parts List (1/4” - 2”)3170 Wasson Road • Cincinnati, OH 45209 USAPhone 513-533-5600 • Fax [email protected] •

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Jordan-valve Mark 70 Series – Sliding Gate Control Valve Manual de usuario (7 paginas)

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Indice de contenidos

Modelos relacionados Mark 701 Series – Sliding Gate Control Valve | Mark 702 Series – Sliding Gate Control Valve | Mark 711 Series – Sliding Gate Control Valve | Mark 707 Series – Sliding Gate Control Valve |

Mas documentos para Panel De Control Jordan-valve Mark 70 Series – Sliding Gate Control Valve

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