Type S402M
Fisher Controls Controls
Installation Manual
Type S402M Pressur Pressure e Reducing Meter Bar Regulator R
October 1994
Form 5356
Introduction Introduction
Installation
This installation manual covers the installation and startup procedures for the Type S402M pressure reducing meter bar regulator. If maintenance disassembly is required, refer to the S400 Series Instruction Manual (Form 5266). To receive a copy of the instruction manual, contact your Fisher sales office or sales representative.
1. Only personnel qualified through training and experience should install, operate, and maintain a regulator. Before installing a Type S402M regulator, check for damage which might have occurred in shipment. Also check for dirt or foreign materials which may have accumulated in the regulator body or in the pipeline.
The Type S402M is a self-operated, spring loaded meter bar regulator typically used on residential applications. The regulator can be used with gaseous fluids such as natural gas, or propane.
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 table 1. To avoid such injury or damage, provide pressure-relieving or pressure-limiting devices (as required by Title 49, Part 192, of the U.S. Code of Federal Regulations, by the National Fire Codes of the National Fire Protection Association, or by other applicable codes) to prevent service conditions from exceeding those limits. Additionally, physical damage to the regulator could result in personal injury or damage due to escaping gas. To avoid such injury and damage, install the regulator in a safe location.
eFisher Controls International, Inc. 1994; All Rights Reserved
2. Apply a good grade of pipe compound to the male threads (being sure not to apply pipe compound to flow path of the pipe) or the pipe and install the regulator so that the flow is in the direction of the arrow cast on the body. Use approved piping procedures when installing the regulator. The spring case can be rotated to any position relative to the body.
WARNING A regulator may vent some gas to the atmosphere. In hazardous or flammable gas service, vented gas may accumulate, and cause personal injury, death, or property damage due to fire 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 or indoors, escaping gas may accumulate and be an explosion hazard. In these cases, the Type S402M vent should be piped away from the regulator to a safe location outdoors. 3. On outdoor installations, regulators installed with vents in positions other than vertically down require additional vent protection from the elements. Such protection may be
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Type S402M Table 1. Specifications Body Size (Inlet x Outlet) And End Connection Style J 3/4 x 3/4 x 3/4 x3/4, J 3/4 x 3/4 x 3/4 x 1, J 3/4 x 1 x 1 x 1 or, J 1 x 1 x 1 x1 Maximum Operating Inlet Pressure(1)
Damage: 5 psig (0.34 bar) Outlet Pressure Range(1) 4-1/2 inches wc to 2-1/2 psi (11.2 to 172 mbar) Orifice Sizes and Color Code
125 psig (8.6 bar) Maximum Allowable Emergency Inlet Pressure(1) 175 psig (12.1 bar) Allowable Outlet Pressures (Casing)(1)
J 1/8-inch (blue) J 3/16-inch (green) J 1/4-inch (brown) Material Temperature Capabilities(1)
Emergency: 10 psig (0.69 bar) Maximum Operating to Avoid Internal Part
-20째F to 160째F (-29째C to 71째C)
1. The pressure/temperature limits in this manual and any applicable standard or code limitations, should not be exceeded.
with a separate hood, shield, or the Fisher Y602 Series vent. 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. With proper installation completed, slowly open the upstream shutoff valves. Check all connections for leaks. Check the downstream equipment for proper operation. 6. If outlet pressure adjustment is necessary, monitor downstream pressure with a gauge during the adjustment procedure. To increase the outlet pressure, the adjusting screw (key 12, figure 1) must be turned clockwise. This requires removal of the closing cap (key 11, figure 1). To reduce the outlet pressure setting, turn the adjusting screw counter-clockwise. Do not adjust the spring to produce an outlet pressure setting above the limit stamped on the regulator.
11
12
3
10D
6
10C
9
10A 10B
1B
T80346-A
1 18
8
7D 7A 7E 7B 7C 42 41
Parts Parts List Key
Description
Key
Description
1 3 4 5 6 7 7A 7B 7C 7D 7E 8 9
Body Spring Case Assembly Screen Vent (not shown) Retaining Ring (not shown) Spring Orifice Tube Assembly Orfice Tube Disk Holder Assembly End Cap OrificeTube Flange Pin O-Ring Orifice Tube Screw
10A 10B 10C 10D 11 12 13 36 38 39 41 42 43
Diaphragm Assembly Cam Stem Relief Valve Spring Relief Valve Spring Seat Closing Cap Adjusting Screw Spring Case Screw Nipple (optional) Swivel (optional) Swivel Nut (optional) Union Tailpiece (optional) Union Nut (optional) Union O-ring (optional)
While this information is presented in good faith and believed to be accurate, Fisher Controls does not guarantee satisfactory results from reliance upon such information. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding the performance, merchantability, fitness
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2 Printed in U.S.A.
Fisher Controls Controls
38
T80359-A
A6621
36
39
OFFSET SWIVEL CONFIGURATION
Figure 1. Type S402 Regulator Shown with Optional Meter Set Piping or any other matter with respect to the products, nor as a recommendation to use any product or process in conflict with any patent. Fisher Controls reserves the right, without notice, to alter or improve the designs or specifications of the products described herein.
For information, contact Fisher Controls: Marshalltown, Iowa 50158 USA Cernay 68700 France
Sao Paulo 05424 Brazil Singapore 2158