Lowflow Mark 6800HP Series High Pressure Regulating Valve User Manual download pdf (Page 1)

3170 Wasson Road • Cincinnati, OH 45209 USA

Phone 513-533-5600 • Fax 513-871-0105

lowﬂ[email protected] • www.lowﬂowvalve.com

I & M 6800HP Series

Installation & Maintenance Instructions for

Mark 6800HP High Pressure Regulators

Warning: Low Flow Regulators must only be used, installed and repaired in accordance with these Installation &

Maintenance Instructions. Observe all applicable public and company codes and regulations. In the event of leak-

age 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 disassembling a

valve, be sure to release all spring tension.

Please read these instructions carefully!

Your LowFlow/Jordan product will provide you with long, trouble-

free service if it is correctly installed and maintained. Spending a few

minutes now reading these instructions can save hours of trouble and

downtime later. When making repairs, use only genuine LowFlow Valve

parts, available for immediate shipment from the factory.

Ideal Installation Schematic

Preferred Installation

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

and other foreign matter, ALL pipelines and piping

components should be blown out and thoroughly

cleaned before the installation process begins.

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

should be installed as indicated in the Ideal Instal-

lation Schematic to provide easier adjustment,

operation and testing.

3. When preparing threaded pipe connections, care

should be exercised to prevent pipe sealing com-

pound from getting into the pipe lines. Pipe sealing

compound should be used sparingly, leaving the

two lead threads clean. Jordan Valve uses, and

recommends, thread sealer Teﬂon ribbon.

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

of the regulator to protect it from grit, scale, and

other foreign matter. A 0.033 perforated screen is

usually suitable. Line strainers are available from

Jordan Valve.

5. The ﬂow arrow on the valve body must be pointed

in the direction of the ﬂow. The regulator may be

installed vertically or horizontally without affecting

its operation.

6. For best control, 3'0" straight sections of pipe

should be installed on either side of the regulator.

7. In hot vapor lines, upstream and downstream

piping near the regulator should be insulated to

minimize condensation.

8. If possible, install a relief valve downstream from

the regulator. Set at 15 psi above the control point

of the regulator.

9. In gas service, expand the outlet piping at least

one pipe size, if the control pressure (downstream)

is 25% of the inlet pressure or less. A standard

tapered expander connected to the outlet of the

valve is recommended.

10. Where surges are severe, a piping accumulator is

recommended.

11. Operate the regulator within its rated pressure and

temperature.

Start-Up

With inlet, outlet, and by-pass shutoff valves closed,

and no pressure the downstream line:

1. Fully open the outlet shutoff valve.

2. Slowly open the inlet shutoff valve.

3. Slowly open and close the outlet shutoff valve

Main Line

Bypass Line

1. Shut-off valve

2. Pipe union

3. Strainer/drainer valve

4. Pressure gauge

5. Jordan regulator

6. Relief valve

1 2 3 4

Summary of Contents

Page 1 - I & M 6800HP Series

3170 Wasson Road • Cincinnati, OH 45209 USAPhone 513-533-5600 • Fax 513-871-0105lowﬂ[email protected] • www.lowﬂowvalve.comI & M 6800HP S

Page 2 - Valve Assembly

several times. This fully strokes the valve to insure satisfactory operation.4. With the outlet shutoff valve open, slowly screw down the adjusting s

Page 3 - Torque Procedures

-3-TroubleshootingSymptom Possible Cause and Cure• Erratic Control1. Oversizing causes cycling and hunting and reduces the rageability of the val

Page 4 - Cross Section View

Cross Section View3170WassonRoad•Cincinnati,OH45209USAPhone513-533-5600•Fax513-871-0105low[email protected]•www.lowowvalve.com

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Lowflow Mark 6800HP Series High Pressure Regulating Valve User Manual Page 1

Browse online or download User Manual for Relay Lowflow Mark 6800HP Series High Pressure Regulating Valve. LowFlow Mark 6800HP Series High Pressure Regulating Valve User Manual

Summary of Contents

Comments to this Manuals

Lowflow Mark 6800HP Series High Pressure Regulating Valve User Manual Page 1

Browse online or download User Manual for Relay Lowflow Mark 6800HP Series High Pressure Regulating Valve. LowFlow Mark 6800HP Series High Pressure Regulating Valve User Manual

Summary of Contents

Comments to this Manuals

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