Fisher 6392 Installation Guide Manuals & Guides

Installation Guide
D103060X014

English – December 2012

Type 6392

Introduction

This installation guide provides instructions for installation, startup,
and adjustment. To receive a copy of the instruction manual, contact
your local Sales Office or view a copy at www.fisher.com. For further
information refer to: Type 92C Instruction Manual, D100255X012.

PED Categories

This product may be used as a safety accessory with pressure
equipment in the following Pressure Equipment Directive categories. It
may also be used outside of the Pressure Equipment Directive using
sound engineering practice (SEP) per table below. For information on
the current PED revision see Bulletin: D103053X012.

PRODUCT SIZE CATEGORIES FLUID TYPE

1/4 NPT SEP 1

Specifications

Maximum Inlet and Outlet Pressures

Cast Iron Construction: 17.2 bar / 250 psig
Steel Construction: 20.7 bar / 300 psig

Outlet Pressure Ranges

See Table 1

Proof Test Pressure

All Pressure Retaining Components have been proof tested
per Directive.

Temperature Capabilities

Cast Iron Construction: 208°C / 406°F
Steel and Stainless Steel Construction: 260°C / 500°F
Optional High Temperature Steel and Stainless Steel Body:

343°C / 650°F

(1)

(1)

(1)

Installation

WARNING

!

Only qualified personnel should install or service
a regulator. Regulators should be installed,
operated and maintained in accordance with
international and applicable codes and regulations
and Emerson Process Management Regulator
Technologies, Inc. instructions.

If the regulator vents fluid or a leak develops in the
system, it indicates that service is required. Failure
to take the regulator out of service immediately
may create a hazardous condition.

Personal injury, equipment damage or leakage
due to escaping fluid or bursting of pressure­containing parts may result if this regulator
is overpressured or is installed where service
conditions could exceed the limits given in the
Specifications section, or where conditions
exceed any ratings of the adjacent piping or
piping connections.

Table 1. Outlet Pressure Ranges

SPRING USAGE

Standard use up to 500°F / 260°C

High Pressure and/or High Temperature

over 500°F / 260°C

To avoid such injury or damage, provide pressure­relieving or pressure-limiting devices (as required
by the appropriate code, regulation or standard) to
prevent service conditions from exceeding limits.

Additionally, physical damage to the regulator
could result in personal injury and property
damage due to escaping fluid. To avoid such injury
and damage, install the regulator in a safe location.

Clean out all pipelines before installation of the regulator and check
to be sure the regulator has not been damaged or has collected
foreign material during shipping. For NPT bodies, apply pipe
compound to the external pipe threads. For flanged bodies, use
suitable line gaskets and approved piping and bolting practices.
Install the regulator in any position desired, unless otherwise
specified, but be sure flow through the body is in the direction
indicated by the arrow on the body.

It is important that the regulator be installed
so that the vent hole in the spring case
is unobstructed at all times. For outdoor
installations, the regulator should be located away
from vehicular traffic and positioned so that water,
ice and other foreign materials cannot enter the
spring case through the vent. Avoid placing the
regulator beneath eaves or downspouts, and be
sure it is above the probable snow level.

OUTLET PRESSURE RANGE

bar psig

0.34 to 4.8 5 to 70

1.4 to 10.3 20 to 150

1.0 to 6.9 15 to 100

5.5 to 17.2 80 to 250

Note

Overpressure Protection

The recommended pressure limitations are stamped on the
regulator nameplate. Some type of overpressure protection is
needed if the actual inlet pressure exceeds the maximum operating
outlet pressure rating. Overpressure protection should also be
provided if the regulator inlet pressure is greater than the safe
working pressure of the downstream equipment.

Regulator operation below the maximum pressure limitations does
not preclude the possibility of damage from external sources or
debris in the line. The regulator should be inspected for damage
after any overpressure condition.

Startup

The regulator is factory set at approximately the midpoint of the
spring range or the pressure requested, so an initial adjustment
may be required to give the desired results. With proper installation
completed and relief valves properly adjusted, slowly open the
upstream and downstream shutoff valves.

1. The pressure/temperature limits in this installation guide and any applicable standard or code limitation should not be exceeded.

Type 6392

Adjustment

To change the outlet pressure, remove the closing cap or loosen
the locknut and turn the adjusting screw clockwise to increase outlet
pressure or counterclockwise to decrease pressure. Monitor the
outlet pressure with a test gauge during the adjustment. Replace the
closing cap or tighten the locknut to maintain the desired setting.

Taking Out of Service (Shutdown)

WARNING

!

To avoid personal injury resulting from sudden
release of pressure, isolate the regulator from all
pressure before attempting disassembly.

Parts List

Type 6392

Key Description

1 Pilot Body
2 Spring Case

3 Orice

4 Valve Plug
5 Valve Plug Guide
6 Stem Assembly
7 Diaphragm
8* Diaphragm Gasket
9 Lower Spring Seat
10 Stem Guide Bushing
11 Valve Plug Spring
12 Strainer Screen
13 Control Spring
14 Upper Spring Seat
15 Jam Nut
16 Adjusting Screw
17 Cap Screw
18 Nameplate
19 Drive Screw
26 Valve Plug Cap

16

2

14

13

17

7

1

10

6

3

12

E0100
16A1520-B

APPLY LUBRICANT/SEALANT:
L = ANTI-SEIZE LUBRICANT
S = ANTI-SEIZE COMPOUND

15

L

18

19

9

8

L

26

4

S

11

5

Figure 1. Type 6392 Assembly

*Recommended spare part.

[e-mail]

Fisher.com

Emerson Automation Solutions

Americas
McKinney, Texas 75070 USA
T [phone]

[phone]

Europe
Bologna 40013, Italy
T [phone]

For further information on the current
PED revision see Bulletin: D103053X012
or scan the QR code.

Facebook.com/EmersonAutomationSolutions

LinkedIn.com/company/emerson-automation-solutions

Twitter.com/emr_automation

Asia Pacic

Singapore 128461, Singapore
T [phone]

Middle East and Africa

Dubai, United Arab Emirates
T [phone]

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Technologies, Inc. All rights reserved. 08/18.
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Emerson Process Management Regulator Technologies, Inc. product
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