Technical Specifications

ManualsBrandsGE ManualsOilfieldGE Valve Regulators Mooney_Flowgrid_iom

Table of Contents

Product Description ............................................................................1

Regulator Markings .............................................................................3

Nameplate Information ....................................................................3

Principles of Operation ......................................................................4

Hydrostatic Testing ............................................................................. 5

Installation ...............................................................................................6

Product Description

The Mooney Flowgrid regulator is an easy to maintain

regulator designed to be used primarily with a self

contained pilot system. The Flowgrid regulator has

several unique features that add to its versatility such as:

■

In line maintenance

■

Replaceable trim

■

Reversible trim parts

■

Non stretching fabric reinforced diaphragm for

stability and fast response at all temperatures

■

Positive spring shutoff

■

Two-stage pressure drop to minimize noise and

provide cavitation protection

Scope

This manual provides installation, operation, and maintenance

instructions for the Mooney Flowgrid regulator. Instructions for the

Mooney Series 20 Pilot will be found in a separate manual.

GE Oil & Gas

Mooney

Flowgrid

Regulator

Installation, Operation and Maintenance Manual

Piping Details .......................................................................................... 7

Start-up and Operation .................................................................. 11

Maintenance ....................................................................................... 13

Troubleshooting ................................................................................. 15

Warranty ................................................................................................ 16

Product Support ................................................................................. 16

GE Oil & Gas has secured global PED EN 334 certification

for its Mooney Flowgrid regulators demonstrating our

commitment to quality and safety. The certification was

awarded by DVGW (the German Technical and Scientific

Association for Gas and Water), one of the world’s most

recognized industry certification bodies and the largest

gas and water industry certification agency in Europe.

GE Oil & Gas has also secured the following verifications;

ISO 9901, ISO 14001, CRN along with others ensuring the

safety and quality of the Mooney regulator.

Summary of content (16 pages)

PAGE 1
GE Oil & Gas Mooney* Flowgrid* Regulator Installation, Operation and Maintenance Manual Scope This manual provides installation, operation, and maintenance instructions for the Mooney Flowgrid regulator. Instructions for the Mooney Series 20 Pilot will be found in a separate manual. Table of Contents Product Description ............................................................................ 1 Piping Details ..........................................................................................
PAGE 2
Table 1 Table 2 Materials of Construction Specifications Body & Spring Case ASTM A 216 WCB Carbon Steel Sizes 1” - 12” (DN 25 - DN300) Spacer ASTM A 216 WCB Carbon Steel Body Style Throttle Plate 17-4PH Stainless Steel Single Port 10 inch and 12 inch Dual Ports Diaphragm Nitrile/Nylon (Optional - Viton/Nylon) End Connections O-Ring & Seals Nitrile (Optional - Viton) Screwed, Socket Weld Flanged, Flangeless & Buttweld Bolting ASTM 193 GR B-7 or Equal Temperature -20°F to 150°F (-29°C t
PAGE 3
Regulator Markings Front View Top View Back View Figure 2 - Regulator Markings 1. 2. 3. 4. 5. 6. 7. American National Standards Institute (ANSI) pressure class rating of the regulator. Line size of body. ANSI pressure class rating of the flange. Indication that the regulator has been hydrostatically tested according to code requirements. The serial number is stamped on the spring case, spacer1, and body. The Nameplate location. The flow direction is marked on the spring case (“INLET” or “OUTLET”).
PAGE 4
Principles of Operation Pilot Supply Pilot Supply Pilot Sense Connection Restrictor Restrictor Pilot Loading Connection Pilot Loading Connection Pilot Outlet Connection Pilot Outlet Connection Inlet Outlet INLET Inlet Outlet Figure 4 - Pressure Reducing Conﬁguration Fully Closed Figure 5 - Pressure Reducing Conﬁguration Partially Open At no flow, when the outlet pressure is greater than the set point of the pilot regulator, the pilot is closed and full inlet pressure loads the spring case thr
PAGE 5
A back pressure regulator or relief regulator controls upstream pressure instead of downstream pressure. The control action in the pilot is the reverse of a pilot for a pressure reducing regulator (increasing pressure in the sense chamber opens the pilot regulator). At no flow, when the inlet pressure is less than the set point of the pilot regulator, the pilot is closed and full inlet pressure loads the spring case through the pilot loading connection.
PAGE 6
Installation 1. PERSONNEL: Installation of the Flowgrid regulator should be made by qualified personnel familiar with high pressure piping and pilot operated regulators.
PAGE 7
Table 5 - Outlet Pressure Outlet Pressure Pilot Regulator with: Less than 2 psi (0.14 bar) 2 – 5 psi (0.14 – 0.35 bar) Greater than 5 psi (0.35 bar) Static Sense Line (No Flow)1 1/2” Pipe minimum 1/2” Tubing 3/8” Tubing Sense Line w/Flow2 3/4” – 1” Pipe 1/2” Pipe 1/2” Tubing 1 ® The Flowgrid Series 20 Pilot has a static sense line.
PAGE 8
Piping Schematics (cont.) 3. Dual Port/Single Pilot (Pressure Reducing Regulator) 5. Dual Port/Dual Pilot (Pressure Reducing Regulator) NOTE: The dual port regulator offers redundant control with two separate control loops. Ports #1 & #2 are piped identically. 4. Dual Port/Single Pilot (Back Pressure Regulator) 6. Dual Port/Dual Pilot (Back Pressure Regulator) 1. Filter supply connected from inlet connection on regulator body to Type 30 Filter inlet. 2.
PAGE 9
Piping Schematics (cont.) 7. Standby Monitor with Differential Pressure Greater than 60 psi (4.13 bar) Operating Regulator Monitor Regulator 8. Standby Monitor with Differential Pressure Less than 60 psi (4.13 bar) Operating Regulator Monitor Regulator 1. Filter supply connected from inlet connection on regulator body to Type 30 Filter inlet. 2. Pilot supply from outlet connection on Type 30 Filter to Type 24 Restrictor inlet. 3. Type 24 Restrictor mounted to Inlet port of Series 20 Pilot. 4.
PAGE 10
Piping Schematics (cont.) 9. Working Monitor (Refer to schematic on page 13) General recommendations: To reduce the adverse effects on the sense signal due to high gas velocity and turbulence: ■ Pipeline diameters may need to be increased in pipe sections containing sense connections. ■ Gas velocity should be less than 100 ft/sec (30m/sec).
PAGE 11
Start up and Operation The following procedures are suggested for start up of the Flowgrid regulator Start up of the Flowgrid regulator should be made by qualified personnel familiar with high pressure systems and pilot operated regulators. WARNING The instruction manual for the PILOT(S) being used should be consulted to ensure that the installation and start up instructions for the pilot are followed. Some pilots can be damaged if not installed and put into operation correctly.
PAGE 12
Standby Monitor NOTE: This procedure is based on the 1st Regulator being the operating regulator and the 2nd regulator being the monitor regulator. 1. Set operating pilot (#1) spring at the MAXIMUM setting. 2. Set monitor pilot (#2) spring to the MINIMUM (zero) setting. 3. Purge station and open outlet regulator or vent to allow flow through the station 4. Slowly open inlet block regulator. Full inlet pressure should be present at the Monitor Regulator and the Monitor Regulator should be closed. 5.
PAGE 13
Standby Monitor Working Monitor 1. Purge station and open outlet regulator or vent to allow flow through the station. 2. Set pilot (#3) to a high setting above desired setpoint. 3. Set pilot (#1) to a high setting above desired setpoint. 4. Set the Monitor pilot (#2) at a zero setting. 5. Set restrictor on Pilot (#1) at an intermediate opening (a “4” setting on the Mooney Type 24 Restrictor). 6. Slowly open the inlet block regulator to station.
PAGE 14
Maintenance (cont’d) Assembly 1. Disconnect control lines(s) and pilot supply line from pilot system. 2. Loosen main spring case nuts in a crisscross pattern. The main spring will lift the spring case as the nuts are removed. 3. Remove spring, diaphragm/throttling element, spacer, throttle plate and O-rings in that order. 4. Inspect all parts for wear and damage. Replace as necessary.
PAGE 15
Troubleshooting First Steps Instability & Speed of response issues. 1. Verify the regulator specifications fit the application conditions. Min/max inlet pressure, control pressure range & min/max operating differentials should be checked to make sure the regulator and pilot are designed to operate in the present conditions. 2. Verify the regulator is piped correctly. Even though the regulator may have operated in the past, check that current piping connections match recommendations on pages 7-10. 3.
PAGE 16
Limited Warranty Seller warrants that Products shall be delivered free from defects in material, workmanship and title and that Services shall be performed in a competent, diligent manner in accordance with any mutually agreed specifications. The warranty for Products shall expire one (1) year from first use or eighteen (18) months from delivery, whichever occurs first, except that software is warranted for ninety (90) days from delivery.