background image

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 specifications 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.

©Emerson Process Management Regulator Technologies, Inc., 2004, 2009; All Rights Reserved

industrial Regulators

Emerson Process Management 
Regulator Technologies, inc.

USA - Headquarters
McKinney, Texas 75069-1872 USA
Tel: 1-800-558-5853
Outside U.S. 1-972-548-3574

Asia-Pacific

Shanghai, China 201206
Tel: +86 21 2892 9000 

Europe
Bologna, Italy 40013
Tel: +39 051 4190611

Middle East and Africa
Dubai, United Arab Emirates
Tel: +971 4811 8100

natural gas Technologies

Emerson Process Management
Regulator Technologies, inc.

USA - Headquarters
McKinney, Texas 75069-1872 USA
Tel: 1-800-558-5853
Outside U.S. 1-972-548-3574

Asia-Pacific

Singapore, Singapore 128461
Tel: +65 6777 8211

Europe
Bologna, Italy 40013
Tel: +39 051 4190611
Gallardon, France 28320
Tel: +33 (0)2 37 33 47 00

TESCOM

Emerson Process Management
Tescom Corporation

USA - Headquarters
Elk River, Minnesota 55330-2445 USA
Tel: 1-763-241-3238

Europe
Selmsdorf, Germany 23923
Tel: +49 (0) 38823 31 0

For further information visit www.emersonprocess.com/regulators

Type R622

Figure 5.  Type R622 Regulator Assembly (continued)

38

13

4

24

33

28

29

30

27

18

1

2

4

41

42

17

19

16

20

22

23

31

25

26

3

Summary of Contents for R622

Page 1: ...aving Jurisdiction The installation in most states must comply with NFPA 58 standard If the regulator vents gas or a leak develops in the system service to the unit may be required Failure to correct trouble could result in a hazardous condition Call a gas service person to service the unit Only a qualified person must install or service the regulator Introduction Scope of the Manual This manual p...

Page 2: ...Start to Discharge is 8 to 22 inches w c 20 to 55 mbar for setpoints from 1 8 to 20 inches w c 4 to 50 mbar Start to Discharge is 140 to 200 over setpoint from 20 inches w c to 2 2 psig 50 to 152 mbar Spring Case Vent Connection 3 4 NPT with removable screen Maximum Temperature Capabilities 1 20 to 160 F 29 to 71 C Approximate Weight 2 35 pounds 1 kg Table 1 Outlet Pressure Ranges outlet pressure ...

Page 3: ...eases Spring force pushes the pusher post assembly downward and the valve disk moves away from the orifice Type R622 regulators include an internal relief valve used to help minimize overpressure Any outlet pressure above the start to discharge point of the non adjustable relief spring moves the diaphragm off of the relief seat allowing excess pressure to discharge through the vent Installation Wa...

Page 4: ...if the piping obstructs the movement of the vent flapper On indoor installations the vent should be piped outside the building see Figure 3 Remove the screen from the regulator vent connection and connect vent piping from that connection to the outdoors Vent piping should be as large in diameter as practical be as short as possible and have a minimum number of bends and elbows Install a weather an...

Page 5: ...re condition on the regulator diaphragm Installation arrangements may vary but in any installation it is important that the valves be opened or closed slowly These steps apply to the typical installation 1 Slowly close the downstream shutoff valve 2 Slowly close the upstream shutoff valve 3 Open vent valves downstream of the regulator 4 Open vent valves upstream of the regulator Maintenance Warnin...

Page 6: ...293T0022 3 Inlet Fitting Aluminum T21176T0BK2 4 Machine Screw Carbon Steel 12 required T13526T0012 5 O Ring Nitrile NBR T14431T0012 13 Inlet Screen 18 8 Stainless steel T14436T0012 16 Relief Spring 302 Stainless steel T13612T0012 17 Diaphragm T21163T0012 18 Pusher Post Acetal T40653T0012 19 Lower Spring Seat Zinc plated steel T14396T0012 20 Relief Spring Retainer 18 8 Stainless steel T13613T0012 2...

Page 7: ...igure 4 Vent Location Position 1 Vent over inlet Position 2 Position 4 Position 3 Vent over outlet 38 13 4 24 33 28 29 30 27 18 1 4 17 19 16 20 22 23 31 25 26 5 3 Figure 5 Type R622 Regulator Assembly T80577 T80577 ...

Page 8: ...aser Emerson Process Management Regulator Technologies Inc 2004 2009 All Rights Reserved Industrial Regulators Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Shanghai China 201206 Tel 86 21 2892 9000 Europe Bologna Italy 40013 Tel 39 051 4190611 Middle East and Africa Dubai United Arab ...

Reviews: