Emerson R622 Installation Instructions

Installation Sheet
Form 5785

March 2004

Type R622-LBW Regulator

Introduction

Type R622-LBW

This installation sheet covers the installation, startup, and
adjustment procedures for Type R622-LBW pressure reducing
regulator. These regulators have internal relief to help
minimize overpressurization of the downstream system.

Specications

Maximum Allowable Inlet Pressure

10 psig (0,69 bar)

Maximum Emergency Outlet Pressure

20 psig (1,4 bar)

Maximum Operating to Avoid Internal Part Damage

3 psid (0,21 bar d) above outlet pressure setting

Outlet Pressure Ranges

13 to 20-inches w.c. (32 to 50 mbar)

Material Temperature Capabilities

-40° to 160°F (-40° to 71°C)

(1)

Installation

WARNING

!

Personal injury, equipment damage, or leakage
due to escaping accumulated gas or bursting
of pressure-containing parts may result if this
regulator is overpressured or is installed where
service conditions could exceed the limits

given in the Specications. To avoid such

injury or damage, provide pressure-relieving
or pressure-limiting devices to prevent service
conditions from exceeding those limits. Also,
physical damage to the regulator can result
in personal injury or property damage due
to escaping gas. To avoid such injury and
damage, install the regulator in a safe location.

1. Only personnel qualied through training and

experience should install, operate, and maintain a

regulator. Before installing, check for damage
which may have occurred in shipment. Also
check the regulator and pipeline for debris.

2. The Type R622-LBW may be installed in any position.

Apply a good grade of pipe compound to the male
threads of the pipe (being sure not to apply pipe

compound to ow path of the pipe) and install the
regulator so that the ow is in the direction of the arrow

cast on the body. Use approved piping procedures
when installing the regulator.

WARNING

!

A regulator may vent some gas to the

atmosphere. In hazardous or ammable gas

service, vented gas may accumulate, and
cause personal injury, death, or property

damage due to re or explosion. Vent a

regulator in hazardous gas service to a
remote, safe location away from air intakes
or any hazardous location. The vent line or
stack opening must be protected against
condensation or clogging. Under enclosed
conditions, the vent should be piped away
from the regulator to a safe location.

3. On outdoor installations, regulators installed with

vents in positions other than vertically down require
additional vent protection from the elements.

4. Regulator operation within ratings does not preclude

the possibility of damage from debris in the lines or
from external sources. A regulator should be
inspected for damage periodically and after any
overpressure condition.

5. To adjust the regulator, monitor downstream
pressure with a gauge during the adjustment
procedure. To increase the outlet pressure,
the adjustment screw (key 23, Figure 1) must
be turned clockwise. This requires removal
of the closing cap (key 31, Figure 1). To reduce
the outlet pressure setting, turn the adjusting
screw counterclockwise. Do not adjust the
spring above the limit stamped on the regulator.

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

R

www.emersonprocess.com/regulators

D103098X012

Type R622-LBW

T80577

Parts List

Key Description

1 Body
2 Pipe Plug
3 Inlet Fitting
4 Machine Screw
5 O-ring
6 Closing Spring
7 Diaphragm
8 Diaphragm Head

9 Orice

26

25A

25C 25B

3

5

28B

13

4

38

24

25D

33

28A

31

29

30

23

16

27

22

19 17

18

20

4

1

Figure 1. Type R622 Regulator

Key Description

10 O-ring
11 Disc Assembly
13 Inlet Screen
15 Vent Screen
16 Relief Spring
17 Diaphragm
18 Pusher Post
19 Lower Spring Seat

Key Description

20 Relief Spring Retainer
22 Spring
23 Adjusting Screw

24 Orice

25 Spring Case Assembly
26 Vent Screen
27 Lever
28 Stem Assembly

Key Description

29 Pin Lever
30 Machine Screw
31 Closing Cap
33 Disc
38 O-ring
40 Set Spring
41 Information Label
43 Packaged Screws

Regulator Division
Industrial

USA - Headquarters
McKinney, Texas 75070 USA
Tel: [phone]
Outside U.S. 1-469-293-4201

Asia-Pacic

Shanghai, China 201206
Tel: [phone]

Europe
Bologna, Italy 40013
Tel: [phone]

For further information visit www.emersonprocess.com/regulators

The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls, Inc., a
business of Emerson Process Management.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or

guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specications of such

products at any time without notice.

Emerson Process Management does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson
Process Management product remains solely with the purchaser.

©Fisher Controls International, Inc., 2004; All Rights Reserved

Regulator Division
Natural Gas Technologies

USA - Headquarters
McKinney, Texas 75070
Tel: [phone]
Outside U.S. 1-469-293-4201

Asia-Pacic

Singapore, Singapore 128461
Tel: [phone]

Europe
Bologna, Italy 40013
Tel: [phone]
Gallardon, France 28320
Tel: [phone]

Regulator Division
Industrial/High Purity

TESCOM
Elk River, Minnesota 55330 USA
Tel: [phone]
Selmsdorf, Germany 23923
Tel: [phone]