flowtap

The information presented in this brochure is for informational purposes only. For actual designassistance please visit our website at www.mooneycontrols.com or see your local representative.

© 2005 Dresser, Inc.Mooney is a registered trademark of Dresser, Inc. FlowTap is a trademark of Dresser, Inc.Patent Pending.

Farm tap style regulators just took a technological leap forward with Mooney FlowTap™ Series Regulators. FlowTap™

Regulators feature more usable capacity, improved shut-offand full capacity relief. FlowTap™ Regulators can control pres-sure of natural gas, air and a variety of other gases for setpoints up to 250 psi, and flow rates up to 58000 scfh.

FlowTap™ Regulators are available in three different configurations:FlowTap™-Std. (Internal Sense): This is the standard designwhich internally senses outlet pressure to maintain an accuratecontrol set point.

FlowTap™-M (Monitor/Remote Sense): This design allows forremote sensing of the control pressure through an 1/4” NPTconnection and control line connected 8 to 10 pipe diametersdownstream of the regulator.

FlowTap™-R (Relief): This design incorporates a full capacityrelief* valve attached to the diaphragm case assembly to protect a downstream system from over-pressurization; eliminating the need for a separate relief valve. *Refer to inlet pressure limitations and relief capacity charts.

Applications• Farm Tap

• Well Head

• Industrial

• Small District Regulator

• Monitor Regulator

• Regulator with Built in Relief

regulators1

flowtap

Innovative Four-Bar Linkage AssemblyUnmatched performance is achieved because of an innovative variable rate linkage that maximizes valve stroke and allows theFlowTap to droop less and flow more than comparable devices at the same set point. A built in mechanical advantage for extraclosing force pushes the plug seal onto the orifice seat to assure bubble-tight shut-off.

• Less droop

• Extra shut-off force

• Robust SST Construction

Split Spring Case DesignChanging springs is easy and can be accomplished without depressurizing the regulator. Companies can stock fewer regulators and simply keep an assortment of springs for each application. Verifying the actual spring installed in the regulator is no longer a difficult task.

Larger DiaphragmA larger than average effective area aids sensitivity and increases shut-off force.

Robust Construction The diaphragm casing has a full 250 psig rating. A built-in hard stop limits diaphragm stroke preventing damage in case the outlet system is accidentally over-pressured.

Full Capacity ReliefFlowTap™ Relief Regulator incorporates a high capacity relief device designed to have enough capacity to prevent a system from being over-pressured.* * Refer to the relief capacities section of this brochure for details.

OrientationFlowTap™ Regulators may be installed in any position. Additionallythe actuator may be rotated in four positions relative to the valvebody to accommodate a variety of space constraints.** Refer to installation instructions and recommendations.

Vibration & Tamper Resistance A lock-nut on the adjusting screw prevents set point changes due to vibration and deters tampering.

Split Spring Case Design

Full Capacity Relief

Four-bar Linkage

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Principle of OperationFlowTap™ Regulators are self-operated pressure reducing regulators only (ie: they can onlycontrol downstream pressure). It is a force balanced device in that spring compression produces a force that directly opposes the force created by outlet pressure acting on the surface area of the diaphragm. FlowTap™ valve assemblies (plug, seal, and orifice) are connected to the spring and diaphragm assembly by a four-bar linkage designed to maxi-mize valve stroke for a small amount of diaphragm movement. When downstream demandincreases, outlet pressure drops and diaphragm force is reduced, allowing spring force tomove the valve plug away from the orifice resulting in an increased flow through the valve.When demand is satisfied, outlet pressure under the diaphragm increases and the resultingforce pushes the valve plug onto the orifice shutting off flow through the valve.

Closed Position Open Position

When outlet pressure exceeds the set-point of the reliefvalve, the force of outlet pressure on the seat exceedsthe spring force and the valve opens, to protect thedownstream system from over-pressurization. Therelief valve reseats and shuts off when the outlet pressure decreases to the relief valve reseat pressure.

Closed Position Open Position

Relief Option The relief assembly bolts onto the diaphragm case of the FlowTap™ - R Regulator. Spring compression produces a spring force that directly opposes the pressure force acting across the surface area of therelief valve plug. In the normally closed condition the spring force exceeds the pressure force on the seat and the relief valve is closed.

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Model Stock Number1” NPT FT-11” NPT with Type 40 Relief FT-1R1” NPT Monitor/Remote Sense FT-1M3/4” NPT FT-23/4” NPT with Type 40 Relief FT-2R3/4” NPT Monitor/Remote Sense FT-2M

FlowTap ModelsTable 1

FlowTap Spring Ranges

Spring Range Color

5-20 psig YELLOW

15-40 psig GREEN

30-80 psig RED

50-125 psig ORANGE

100-250 psig DARK BLUE

Table 2

*All springs adjust between 0 psi and the high published setpoint for each spring. The published range is to help users select the optimum spring for operational performance at thedesired set point.

Materials of ConstructionComponent Material

Body Ductile Iron A395

Diaphragm Housing Die Cast Aluminum

Spring Case Die Cast Aluminum

Diaphragm Nitrile/Aluminum

Seals Nitrile

Bolting ASTM A 193 B-7

Spring Music Wire

1/8” 1000 1000 1000 16000 Working: 3/16” 1000 1000 1000 354001/4” 900 250 psig 900 250 psig 250 psig 900 55500 3/8” 400 400 400 578001/2” 250 250 250 58100

FlowTap Pressure RatingsOrifice Max Max Outlet Max Outlet Max Max Max Max Temperature

Inlet (Standard & Body Sense/ Spring Diff. Flow(psig) Relief Models) FlowTap-Monitor/ Diaphragm Case (All Models) (scfh) @

Ext.Sense Model Only Casing (All Models) (psig) Max Diff.(psig) (All Models)

-20°F-150°F

Emergency:-40°F-175°F

FlowTap RRelief Spring Color

Range40-60 psig Stainless60-75 psig White

NOTE: The FlowTap™-R cannot be set to control at a pressure above the relief set point.

Table 5

Table 3

Table 4

4

flowtapQ = Flow Rate (SCFH)

Cg = Gas Sizing Coefficient

P1 = Inlet Pressure (psia)

P2 = Outlet Pressure (psia)

Universal Gas Sizing Equation

Q = P1 • • Cg • Sin Degrees[ ]520G • T

P1- P2

P1

3417C1

•

DroopFlowTap™Regulators are self-operated regulators that require a drop in outlet pressure in order to open. Expect a 5-13% drop in outlet pressure (droop) in order to achieve full capacity of the regulator, the actual percentage being dependent on the set point, spring range and orifice size selected.

C1 = Valve Recovery Coefficient (C1 = Cg / Cv)

Cv = Liquid Sizing Coefficient

G = Specific Gravity (0.6 for Natural Gas)

T = Temperature (∞Rankine) (T = 460 + °F)

Sizing software is available from your MOONEY® manufacturer’s representative.

SizingPublished capacities are based on the Universal Gas Sizing Equationand published flow coefficients for each orifice size (Table 6).

FlowTap CoefficientsOrifice 1/8” 3/16” 1/4” 3/8” 1/2” Relief Device

Table 6

Cg 12 27 47 108 170 660

C1 32 31 32 34 38 35*

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* Estimated value.

Monitor Capacity*

Table 7

Two Regulators in Series .707 (x SCFH)

* Special sizing consideration must be made for monitor regulator sets. An approximate 30% loss of capacity occurs when two equal size regulators are piped in series. Multiply the flow rate by a factor of .707 if two regulators with equal size orifices are used in series.

Over-Pressure ProtectionAll FlowTap™ Regulators have an outlet pressure rating(250 psi) that is less than the inlet pressure rating. If the inlet pressure exceeds the outlet pressure rating then some form of over pressure protectionis required to protect the FlowTap™ Regulator from being over-pressured.

Refer to United States Department of TransportationPipeline Safety Regulations, Research and SpecialPrograms Administration, Natural Gas Part 192 and/orother applicable local or governmental codes for specific overpressure protection relief requirements.

Sizing ChartsFlowTap Full Open Capacities (scfh). Natural Gas, Sp. Gravity 0.6 @ 60°F

10 5 285 656 1115 2444 351815 5 406 930 1591 3524 514920 5 506 1153 1981 4422 653630 5 682 1545 2670 6024 904740 5 845 1906 3308 7520 1141350 5 1002 2255 3926 9021 1420060 5 1157 2604 4533 10415 1639470 5 1312 2952 5139 11809 18589

100 5 1777 3998 6960 15992 25173150 5 2552 5741 9993 22964200 5 3326 7484 13027250 5 4101 9227 16061300 5 4875 10969 19095400 5 6424 14455500 5 7974 17941600 5 9523700 5 11072800 5 12621900 5 14170

1000 5 1572015 10 319 735 1248 2730 391320 10 452 1039 1772 3912 568430 10 656 1496 2571 5746 850940 10 832 1886 3259 7347 1101750 10 997 2251 3904 8856 1340260 10 1157 2604 4533 10415 1639470 10 1312 2952 5139 11809 18589

100 10 1777 3998 6960 15992 25173150 10 2552 5741 9993 22964 36146200 10 3326 7484 13027 29935 47120250 10 4101 9227 16061 36906300 10 4875 10969 19095 43878400 10 6424 14455 25163500 10 7974 17941 31230600 10 9523 21426 37298700 10 11072 24912 43366800 10 12621 28398900 10 14170 31883

1000 10 15720 35369

Orifice Size (inches)Inlet Outlet 1/8 3/16 1/4 3/8 1/2(P1) (P2)psig psig

Orifice Size (inches)Inlet Outlet 1/8 3/16 1/4 3/8 1/2(P1) (P2)psig psig

6

Select the spring range for optimum performance at each set point.

5-20 15-40 30-80

30 20 534 1230 2093 4598 663240 20 765 1751 2997 6656 975850 20 957 2179 3748 8389 1244760 20 1133 2569 4436 9988 1495470 20 1300 2940 5090 11517 17365

100 20 1777 3998 6960 15992 25173150 20 2552 5741 9993 22964 36146200 20 3326 7484 13027 29935 47120250 20 4101 9227 16061 36906 58093300 20 4875 10969 19095 43878400 20 6424 14455 25163 57820500 20 7974 17941 31230600 20 9523 21426 37298700 20 11072 24912 43366800 20 12621 28398 49433900 20 14170 31883 55501

1000 20 15720 3536940 30 606 1397 2374 5199 746550 30 862 1978 3378 7468 1087760 30 1070 2444 4193 9336 1374770 30 1257 2861 4925 11030 16382

100 30 1765 3989 6914 15672 23692150 30 2552 5741 9993 22964 36146200 30 3326 7484 13027 29935 47120250 30 4101 9227 16061 36906 58093300 30 4875 10969 19095 43878400 30 6424 14455 25163 57820500 30 7974 17941 31230600 30 9523 21426 37298700 30 11072 24912 43366800 30 12621 28398 49433900 30 14170 31883 55501

1000 30 15720 3536950 45 496 1149 1944 4226 600060 45 858 1977 3360 7369 1060270 45 1113 2554 4359 9626 13998

100 45 1708 3885 6688 14989 22281150 45 2543 5737 9959 22632 34338200 45 3326 7484 13027 29935 47120250 45 4101 9227 16061 36906 58093300 45 4875 10969 19095 43878400 45 6424 14455 25163 57820500 45 7974 17941 31230600 45 9523 21426 37298700 45 11072 24912 43366800 45 12621 28398 49433900 45 14170 31883 55501

1000 45 15720 35369

The sizing charts on pages 6 & 7 indicate the maximum flow rate through the valve under the given conditions. It is recommended that the maximum valve flowrate be 20% greater than the maximum required flow rate for the application.

Gas Air Nitrogen Propane Vapor Butane Helium Hydrogen Methane

Table 8

Correction Factor 0.775 0.789 0.628 0.548 2.07 2.93 1.04

NOTE: To convert flow rates using gases, multiply any flow valve on pages 6 and 7 by the appropriate correction factor.

Orifice Size (inches)Inlet Outlet 1/8 3/16 1/4 3/8 1/2(P1) (P2)psig psig

70 60 784 1813 3071 6694 9545100 60 1584 3626 6204 13758 20131150 60 2504 5678 9808 22106 33141200 60 3326 7484 13027 29935 47120250 60 4101 9227 16061 36906 58093300 60 4875 10969 19095 43878400 60 6424 14455 25163 57820500 60 7974 17941 31230600 60 9523 21426 37298700 60 11072 24912 43366800 60 12621 28398 49433900 60 14170 31883 55501

1000 60 15720 35369100 80 1247 2877 4886 10694 15341150 80 2392 5456 9368 20899 30860200 80 3374 7418 12823 28933 43446250 80 4101 9227 16061 36906 58093300 80 4875 10969 19095 43878400 80 6424 14455 25163 57820500 80 7974 17941 31230600 80 9523 21426 37298700 80 11072 24912 43366800 80 12621 28398 49433900 80 14170 31883 55501

1000 80 15720 35369150 100 2183 5008 8551 18896 27504200 100 3179 7236 12450 27869 41358250 100 4043 9157 15835 35756 53745300 100 4858 10962 19026 43227400 100 6424 14455 25163 57820500 100 7974 17941 31230600 100 9523 21426 37298700 100 11072 24912 43366800 100 12621 28398 49433900 100 14170 31883 55501

1000 100 15720 35369150 125 1694 3911 6635 14500 20750200 125 2967 6791 11619 25766 37704250 125 3929 8943 15390 34469 51194300 125 4796 10868 18783 42371400 125 6424 14455 25163 57820500 125 7974 17941 31230600 125 9523 21426 37298700 125 11072 24912 43366800 125 12621 28398 49433900 125 14170 31883 55501

1000 125 15720 35369

200 150 2604 5992 10200 22420 32372250 150 3735 8540 14630 32517 47743300 150 4680 10648 18329 41068400 150 6375 14412 24970 56563500 150 7974 17941 31230600 150 9523 21426 37298700 150 11072 24912 43366800 150 12621 28398 49433900 150 14170 31883 55501

1000 150 15720 35369200 175 1976 4568 7738 16867 24046250 175 3433 7881 13445 29666 43080300 175 4498 10273 17616 39213400 175 6299 14285 24671 55588500 175 7942 17925 31104600 175 9523 21426 37298700 175 11072 24912 43366800 175 12621 28398 49433900 175 14170 31883 55501

1000 175 15720 35369250 200 2970 6847 11633 25488 36623300 200 4230 9698 16569 36653 53438400 200 6180 14058 24207 54262500 200 7887 17847 30889 69846600 200 9523 21426 37298 85706700 200 11072 24912 43366800 200 12621 28398 49433900 200 14170 31883 55501

1000 200 15720 35369300 250 3298 7611 12916 28239 40443400 250 5785 13235 22658 50296500 250 7681 17468 30083600 250 9394 21275 36795700 250 11025 24888 43182800 250 12621 28398 49433900 250 14170 31883 55501

1000 250 15720 35369

Select the spring range for optimum performance at each set point.

Orifice Size (inches)Inlet Outlet 1/8 3/16 1/4 3/8 1/2(P1) (P2)psig psig

30-80 50-125 100-250

FlowTap Full Open Capacities (scfh). Natural Gas, Sp. Gravity 0.6 @ 60°F

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Table 9

Units (Flow) Nm3/h Sm3/h

Correction Factor 0.0268 0.0283

Table 10Units (Pressure) kPa Bar Kg/cm2

Correction Factor 6.895 0.0689 0.0703

NOTE: To convert the units of a value shown on pages 6 and 7, multiply thatvalue by the appropriate correction factor.

flowtap8

Relief Capacity FlowTap™-R Regulators incorporate a high capacityrelief valve that is designed to have enough capacity toprevent a system from being over-pressured.

The Maximum Fail Open Capacity of the regulator(pages 6 and 7) should be less than Maximum ReliefCapacity Available in order to protect the downstreamsystem from being over pressured.

Relief capacities may be calculated using the UniversalGas Sizing Equation and the sizing coefficients providedin Table 6.

See Graph 1 for Relief Valve sizing.

Relief Set PointExpect the relief valve to re-seat 5 psig below the reliefset point. The regulator set point should be set farenough below the relief set point to accommodate forre-seat pressure and regulator lock-up.

The FlowTap™ regulator relief valve requires a build-upof outlet pressure to achieve maximum capacity. Expecta 5 psig build-up of system pressure for maximumrelief capacity.

NOTE: For overpressure situations that do not requirefull capacity of the relief valve, the valve will only openas much as necessary to maintain its set pressure.

125

100

75

50

25

00 200 600 800 1000400

Minimum Relief Settings

Regulator Inlet Pressure P1 (psig)

Relie

f Set

Poi

nt (p

sig) 1/2 Orifice*

3/8 Orifice*

1/4 Orifice*

3/16 Orifice

1/8 Orifice

Graph 1: This graph indicates the lowest setting of the relief valve that can maintain full capacity relief with chokedflow across the selected FlowTap regulator orifice size. This graph represents calculated values, and can be appliedto all gases in Table 8. Contact a Mooney representative when using relief set points below 25 psig.* See table 8 for maximum pressure ratings of the Flowtap regulator.

regulators

FlowTap Models FT-1M and FT-2M

FlowTap Models FT-1 and FT-2

FlowTap Models FT-1R and FT-2R

External Sense Pressure (Monitor)Downstream Pressure (P2)

Inlet Pressure (P1)

Atmospheric Pressure (Vent)

Dresser Pressure Regulation Group2822 S. 1030 W

Salt Lake City, Utah 84119801.487.2225

www.mooneycontrols.comEmail: mail@mooneycontrols.com

730-114-02FLOWTAP_7/07