PURGEMASTER™

Bailey-Fischer & Porter PURGEMASTER Purge Meters are low capacity variable area flowmeters for both liquid and gas with an excellent selection of material and scale lengths in a single product family design.  They provide optimum flexibility with minimum component proliferation. The meter features a corrosion resistant, high strength stainless steel body, quick, easy snap-in tube construction and a safety tested operator protection shield.

Bailey-Fischer & Porter PURGEMASTERS are ideal for such applications as the purging of control lines and instrument enclosures. Their use is easily extended into fluid sampling, liquid specific gravity, and level measurement and similar services.
purgemaster.jpg (7046 bytes)
Design Features
  • HIGH STRENGTH STAINLESS STEEL BODY:  The body is corrosion resistant stainless steel rigidly constructed to maintain tube alignment and resist pipe strain.
  • "SNAP-IN" TUBE CONSTRUCTION: Minimizes the downtime needed to clean the meter tube or to change the meter range.
  • POLYCARBONATE OPERATOR PROTECTION SHIELD:  Safety tested shield will protect personnel from glass fragments in the rare event of accidental tube breakage.
  • COMPONENT FLEXIBILITY: All parts for the four scale lengths except bodies, tubes, and protector shields are interchangeable providing simplified maintenance and a reduced spare parts stocking requirement.
  • OPTIMUM VARIETY: The Bailey-Fischer & Porter PURGEMASTER is available in 1-1/2, 3, 5, and 10 inch scale lengths and end fitting materials of brass, KYNAR® and stainless steel.
  • INTERNAL BACKCHECK: Restricts back flow and draining of process fluid when metering tube is removed. (Not available with outlet control valve.)
  • CONTROL VALVE: The optional control valve provides a smooth fine degree of adjustment.
  • VERSATILE FLOW CONTROLLER: The optional 53R-2110 Differential Pressure Regulator is designed to give reliable flow control regardless of changes in upstream pressure.
  • ADJUSTABLE ALARMS: Single (mm. or max.) or Dual (mm. & max) alarm sensors are adjustable over the entire meter range.
  • CHOICE OF OPERATING POSITION: The meter can be inverted and its tube reversed to change the control valve position from the inlet to the outlet.   Internal backcheck is to be removed when control valve is positioned in the meter outlet.

Engineering Specifications

Repeatability: 
   0.5% of full scale.
Accuracy:   

ACCURACY STATEMENT
¡ÀPERCENT OF FULL SCALE

Scale Length Standard Accuracy

Optional Accuracy

1-1/2" (38 mm)
3" (75 mm)
5" (127 mm)
10" (250mm)
10%
10%
2%
2%
4%
4%

1%
1%

*Except tube number FP1/8-038-G-6 and FP1/8-041-G-6 which have ¡À5% standard accuracy and ¡À2% optional accuracy.

Rangeability:  10 to 1 or greater

Operational Limits:
Minimum Temperature : 32 F (0 C)
Minimum Pressure: Full vacuum. If vacuum conditions require a Control valve, it should be in the outlet fitting.
Maximum Process Temperature and Pressure:  Temperature and
pressure are interdependent but the listed combination limits must not be exceeded.
Ambient Temperature Limits: 32 F (0 C) to 140 F (60 C)

Materials of Construction:
Meter
Tube*:  Borosilicate glass
Floats*:  Refer to Capacity Tables (Table I, II, III, & IV)
End Fittings:  Brass, KYNAR® 316 stainless steel

Tube Adaptor:  KYNAR® with brass and KYNAR® end fittings, 316 stainless steel or KYNAR® with stainless end fittings.
Tube Adaptor
Spring*:  316 stainless steel with brass and stainless steel end fittings, Hastelloy "C" with KYNAR® end fittings.
Float Stop*: 1-1/2 and 3 inch meters 316 stainless steel with brass and stainless steel end fittings, Hastelloy "C" with KYNAR® end fittings 5 and 10 inch meter - Teflon.
Tube Rest Gasket:  Teflon
0-Rings: Buna-N when brass end fittings are specified; Viton when stainless or KYNAR® end fittings are specified.
Optional: Butyl Rubber, Ethylene Propylene Rubber and Kalrez.®
Valve Stem*:  Stainless steel with brass and stainless fittings; KYNA® tip over stainless steel (non-process wetted) with KYNAR® fittings.
Internal Backcheck: Teflon
Body:    304 stainless steel
Shield:    Polycarbonate

Process wetted parts
Note:    KaIrez is a registered Trademark of E.I. DuPont Co.
KYNAR isa registered trademark of Atochem Inc.

Connections: 1/4 inch NPT, R1/4" (BSP plain) or 1/4" BSPtr internal threads. Inlet and outlet fillings are horizontal and face back.
Mounting: In-line; wall or front of panel through mounting holes in back of the body; or rear of panel mounting.
Scales: 
Scale Length: 1-1/2,3,5, and 10 inch.
Scales (on tube): As indicated in capacity tables.  (Optional metal scale for 5 and 10" rear panel mounting)

Differential Pressure Regulator1
Body:  316 stainless steel or brass
Diaphragm: Viton (with stainless body); Buna-N (with brass body).
Ball Valve:  316 stainless steel
Springs:  Type 316 stainless steel


Pipe Connection:    1/4" NPT internal threads
R 1/4" (ISSP plain)
1/4" (BSP tr.)
Max Pressure:  200 psig (l3BOkPa) at 100 F (38 C)
Maximum Differential Pressure: 100 psi (690 kPa)

NOTE 1: When combined with a 53R2110 differential Pressure Regulator, the PURGEMASTER can control a flow of liquid or gas that is subject to varying line pressure. However, due to gas compressibility, the true value of mass flow rate of a gas can be measured only if the downstream pressure remains constant.

Weight: (approximate)
Purge Meter only:

Scale Length

lb

Kg

1-1/2" (38 mm)
3"(75 mm)
5" (127 mm)
10" (250mm)
1.0
1.0
1.4
1.8
0.45
0.45

0.65
0.80

Purge Meter with Regulator: Add 2-1/2 lb (1.15kg) to weights listed above.

Alarms
Principle of operation
The ring sensors with a bistable switching action picks up the relay in the amplifier when the ball float reaches the trigger level and remains in that position, even if the
float continues to move towards the alarm zone, thus leaving the trigger level. The relay will drop out as soon as the float crosses the trigger level from the opposite
direction, and moves back from the alarm zone into the normal operating range. The actual float position - above or below the trigger level - is precisely indicated.

Explosion hazardous operation is feasible, since the ring sensor used is an intrinsically safe switch with intrinsically safe circuit. Due to the relatively short metering tube, type 10A6131/41 is suitable either as a minimum or a maximum alarm. Model 10A6132/42 is recommended if both alarm operations are designed.

Design Features

  • Sensor height 14 mm, therefore only small coverage of the scale.
  • Integrated clamp device directly to the meter body.  No automatically adjustability during operation possible.

Alarm specifications

Ring sensor
RJ1O-Bi-Y 20593 for 1/8 inch meter tubes, RJ1S-Bi-Y 
20594 for 1/4 inch meter tubes 
Bistable Switching Action
EEx ia IIC T6, EEx ib IIC T6
Certificate of Conformity Ex 83/2022X
FM Approved Nonincendive for Class I, Div 2 Groups A, B, C and D, and Class II, Div I Groups F, and G
Power supply requirements: approx. 1OV dc
Load Current (current range): <=2.9 mA =>4.8 mA
Repeatability:    ¡À 1 mm
Self Inductance: 60 µH
Self Capacitance: 100 nF
Ambient temp. limit: 50 F (10 C) to 104 F (40 C)
Cable:    6 1/2 feet (2m) standard (max. 9800 feet (3000 M) possible)
Housing:    Polycarbonate, black
Protective Class: acc. to DIN 40050 IP 67
Weight:    150 g (approximate)

Switching amplifier
Type WE
77/Exl-Bi: for each sensor
Contact rating: 250 VA or 4A at 250 V
Power consumption: approx. 3.5 VA
Supply Voltage: 24 V ac, 42 V ac, 110 V ac, 220 V ac - 10% + 15%, 45 - 65Hz
Response Time: Energize approximately 20 ms, De-energizxe approximately 10 ms 
Output Type: Single Pole Double Throw (SPDT)
Ambient temp. limits: -13 F (-25 C) to + 140 F (+60 C)
Maximum Wire Size: (2) #16 AWG
Certificate of Conformity Ex - 79/2043X, BASEEFA approved to Ex 8024X
FM Approved for use with RJ1 0 - Bi - Y sensors.
WE77/Exl - Bi must be installed in a non-hazardous area. When RJ10 - RI -Y sensors are used with WE771 
ExI - Bi amplifiers, sensors can be installed in Class I, Div. 1 and 2, Groups A. B, C, D, E, F and S.
Housing:    Polyamid
Weight:    0.7 kg (approxirnate)

Ordering Information:
When ordering, please specify:
Part number or complete model number.
Materials of construction (end fittings, regulator body).
Maximum capacity and unit of flow.
Mounting.
Type of scale.
Accessories.
Operating conditions such as:
Fluid measured
Operating and maximum temperature
Operating and maximum pressure
Fluid density
Fluid viscosity

Caution
Glass tubes are not recommended for either hot or strong alkalies; fluorine. or hydrofluoric acid. Meter tubes should be periodically inspected for signs of
near. Erosion, stress cracks or nicks provide early naming for tube replacement. With certain fluids, the glass may erode unevenly so that wear is not visibly noticeable. If wear is suspected, the tube should be replaced.

Typical Specifications
The purge meter shall have 304 stainless steel body, (brass) (KYNAR®) (316 stainless steel) end fittings and (Buns-N) (Viton) 0-rings.
1

The metering tube shall be easily removable for range change or cleaning without removing the meter from the line or without the use of tools.

Meter scale length shall be (1 -1/2inches percent only), (3 inches) (5 inches) (10 inches) with (percent) (mm) (direct reading) scale etched directly on it.

Flow rate shall be (range and units) of (fluid) metered at (temperature and pressure). Maximum temperature and pressure shall be (specify).

When integral control valve is required,
2 Add: an integral (stainless steel) (KYNAR) control valve shall be provided.

When constant Differential Pressure Regulator is required, Add: A (brass) (stainless steel) constant Differential Pressure Regulator shall be provided to maintain a constant flow rate with varying line pressures.

1Buna-N 0-rings with brass end fittings, Viton 0-rings with stainless steel and KYNAR® end fitting.
2 Always required with Differential Pressure Regulator


1-1/2 INCH SCALE METER

Scales (On Tube)
Standard: Percentage, for all capacities    

Table I
l-1I2" SCALE LENGTH CAPACITIES (MAXIMUM FLOW RATES)

Liquid @ 1.0 sP.GR.& visc. 1 cps (1 mPas) Air @ 14.7 psia & 70 F  1013 mbar & 0 C Metering Tube Nomenclature Float1 delta P Inches of Water

cc/min

gph

scc/min

scfh

ncc/min

 -- -- --

0.8#*

0.013#*

65#*

0.14#*

65#*

FP-1/16-08-P-1 1/2

BO

1.20

1.0#*

0.016#*

95#*

0.20#*

90#*

FP-1/16-08-P-1 1/2

SA

1.30

4.0#

0.065#*

180#*

0.38#*

170#*

FP-1/16-08-P-1 1/2

SS

1.70

7.0#

0.11#

420#

0.90#

400#

FP-1/16-30-P-1 1/2

BG

1.50

13.0

0.21

560

1.20

550

FP-1/16-30-P-1 1/2

SA

1.70

22.0

0.34

900

1.90

850

FP-1/16-30-P-1 1/2

SS

2

38.0

0.60

2100

4.40

2000

FP-1/8-21-P-1 1/2

80

2

60.0

0.95

2600

5.50

2600

FP-1/8-21-P-1 1/2

SA

3.50

120.0

1.90

4000

8.50

3800

FP-1/8-21-P-1 1/2

SS

7.50

190.0

3

8000

17

8000

FP-5/32-40-P-1 1/2

BG

14

450.0

7

15000

32

15000

FP-5/32-40-P-1 1/2

SS

50

850*

13.5*

28000*

60*

28000*

FP-1/4-28-P-1 1/2

SS

100

1600*

25*

48000*

100*

45000*

FP-1/4-41-P-1 1/2

SS

210

2200##*

34##*

70000##*

150##*

70000##*

FP-1/4-41-P-1 1/2

CA

475

* Not available with 53RB/T 2110 regulator
# Specify low capacity valves for all stainless steel & brass end fittings. Specify standard capacity valves for KYNAR end fittings.
## Specify high capacity valves for alt stainless steel & brass end finings. Specify standard capacity valves for KYNAR end fittings.

3 INCH SCALE METER
Scales (On Tube)
Standard:    Percentage, for all capacities
Optional:    See Capacity Table II for available standard direct reading scales.
Optional direct reading-other than shown on Table II.

Table II
3" SCALE LENGTH CAPACITIES
(MAXIMUM FLOW RATES)

Liquid @ 1.0 sP.GR Maximum Capacities2
Air @ 14.7 psia & 70 F
10PSIG  @ 70 F  Pressure Drop Across Meter with Valve-Wide Open  Tube Float1

cc/mm

gph

sco/min

scfh

scfm

scfh

inches H20

kPa

   

4.6

0.07

380

0.8

-- --

1.4

0.35

FP-1/8-08-P-3

BG

20

0.32

900

1.9

--

2.5

2.2

0.55

FP-1/8-08-P-3

SS

29

0.46

1600

3.4

-- --

2.5

0.62

FP-1/8-20-P-3

BG

90

1.4

3200

7.0

-- --

5.0

1.2

FP-1/8-20-P-3

SS

150

2.4

7000

15

-- --

8.3

2.1

FP-l/4-15-P-3

BG

240

3.8

10500

22

-- --

18.0

4.5

FP-1/4-20-P-3

BG

400

6.5

13000

27

-- --

25.0

6.2

FP-1/4-15-P-3

SS

580

9.0

19000

40

-- --

55.0

13.7

FP-1/4-20-P-3

SS

1250*

20.0*

40000*

85*

-- --

220.0

54.7

FP-1/4-41-G-3

SS

1800*

29.00*

56000*

120*

2*

--

425.0

105.7

FP-1/4-41-C-3

CA

5 Inch Scale Meter
Scales (On Tube)
Standard:    Millimeter scales with standard air and water curves
Optional:    See Capacity Table Ill for available standard direct reading scales.
Optional direct reading - Other than shown on Table III. Percent scale considered as non-standard direct reading.

TABLE III- 5" SCALE LENGTH CAPACITIES
(MAXIMUM FLOW RATES)

LIQUID @ 1.0 SP.GR.

AIRO 14.7 PSIA & 70 F

TUBE FLOAT

0.65#*cc/min

55#* scc/min

FP-1/8-038-G-6

BG

1.06#* cc/min

78#* scc/min

FP-1/8-041-G-6

BG

2.05#* cc/mm

128#* scc/min

FP-1/8-041-G-6

SA

3.3#* cc/min

185#* scc/min

FP-1/8-038-G-6

SS

4.7#* cc/min

250#* scc/min

FP-1/8-041-G-6

SS

6.0* cc/min

390* scc/min

FP-1/8-08-G-5

BG

10.8* cc/min

540* scc/min

FP-1/8-08-G-5

SA

14.0 cc/min

720 scc/min

FP-1/8-12-G-5

BG

22.5 cc/min

1080 scc/min

FP-1/8-16-G-5

BG

35.0 cc/min

1450 scc/min

FP-1/8-16-G-5

SA

43.0 cc/min

1950 scc/min

PP-i /8-25-G-5

BG

61 cc/min

2150 scc/min

FP-1/8-16-G-5

SS

82 cc/min

2900 scc/min

FP-1/8-20-G-5

SS

88 cc/min

4100 scc/min

FP-1/4-10-G-5

BG

110 cc/min

3800 scc/min

FP-1/8-25-G-5

SS

170 cc/min

7400 scc/min

FP-1/4-16-G-5

BG

225 cc/min

9600 scc/min

FP-1/4-20-S-S

BG

300 cc/min

12600 scc/min

FP-1/4-25-G-5

BG

420 cc/min

14500 scc/min

FP-1/4-16-G-5

SS

550 cc/min

39 scfh

FP-1/4-20-G-5

SS

570 cc/min

49 scfh

FP-1/4-40-0-6

BG

720 cc/min

50 scfh

FP-1/4-25-G-5

SS

1060* cc/min

70 scfh

FP-1/4-25-G-5

CA

1340* cc/min

96 scfh

FP-1/4-40-G-6

SS

2000*## cc/min

135 scfh*##

FP-1/4-40-G-6

CA

10 Inch Scale Meter
Scales (On Tube)
Standard:    Millimeter scales with standard air and water curves
Optional:    See Capacity Table IV for available standard direct reading scales.
Optional direct reading - Other than shown on Table IV. Percent scale considered as non-standard direct reading.

*  Not available with 53RB/T 2110 regulator
# Specify low capacity valves for all stainless steel & brass end fittings. Specify standard capacity valves for KYNAR end fittings.
##    Specify high capacity valves for all stainless steel & brass end fittings. Specify standard capacity valves for KYNAR end fittings.

TABLE IV    - 10" SCALE LENGTH CAPACITIES
(MAXIMUM FLOW RATES)
Standard Scale 250mm

LIQUID @ 1.0 SP.GR.

AIR 14.7 PSIA & 70 F

TUBE FLOAT

6.0# cc/min

365# scc/min

FP-1/8-077-G-10

BG

10.4# cc/min

510# scc/mn

FP-1/8-077-G-10

SA

15.4 cc/min

1.8 scfh

FP-1/8-13.3-G-10

BG

21.2 cc/min

1.7 scfh

FP-1/8-077-G-10

SS

28.0 cc/min

2.4 scfh

FP-1/8-13.3-G-10

SA

44 cc/min

3.7 scfh

FP-1/8-13.3-G-10

SS

48.5 cc/min

4.6 scfh

FP-1/8-32-G-10

BG

73.0 cc/min

6.0 scfh

FP-1/8-32-G-10

SA

91.0 cc/min

9.2 scfh

FP-1/4-10-G-10

BG

122 cc/min

9.3 scfh

FP-1/8-32-G-10

SS

184 cc/min

13.8 scfh

FP-l/8-32-G-10

CA

224 cc/min

20 scfh

FP-1 /4-19-G-10

BG

365 cc/min

25 scfh

FP-1/4-10-G-10

CA

535 cc/min

37.5 scfh

FP-1/4-19-G-10

SS

590 cc/min

52.2 scfh

FP-1/4-40-G-10

BG

800 *cc/min

53.5* scfh

FP-1/4-19-G-10

CA

1300 cc/min

92* scfh

FP-1/4-40-G-10

SS

1880* ##cc/min

132## scfh

FP-1/4-40-G-10

CA