ARMORED PURGEMETER

The Series 10A3220 "Armored Purgemeter" is especially designed for low flow measurements of most liquids and gases at high pressure and temperature.
purgemaster.jpg (7046 bytes)

Design Features
  • Suitable for most low flow applications. Measures even dirty and corrosive gases or liquids.
  • All stainless steel body suitable for high pressure and corrosive applications.
  • Measures ranges from 0.26 to 211 GPH water or 1.3 to 880 SCFH air.
  • Mm. and/or max. alarms
  • Analog output signal 4-20 mA
  • Differential pressure regulator

Engineering Specifications
Model 10A3220125

Rangeability:    10:1 (See also capacity table)
Accuracy:    + 6% of full scale
Scale Length:  60 mm
Scale Graduation: Percent standard; direct reading optional

Max. allowable operating pressure
Model 1 0A3225/55CA 1450 psi (100 bar)
Model 1 0A3220/5OCA 1450 psi (100 bar)
Model 10A3220/50C, N, M 580 psi (40 bar)

With differential pressure regulator
200 psi (14 bar) standard.

Max. allowable fluid temperature
3000F (150 C) (Viton), 248 F (120 C) (Buna N)

Ambient Temperature
-13 to 176 F (-25 to +800C)

Connection
1/4", 3/8" or 1/2" NPTI depending on meter.

Weight, approx.
without delta P regulator: .91b (0.4 kg)
with delta P regulator: 2.61b (1.2 kg)

Materials of Construction

Wetted Parts

Meter Tube
Stain. Steel, Type 316Ti (UNS S31635)

Float:    Stain. Steel, Type 316Ti (UNS S31635)
Needle valve: Stain. steel Type 316Ti (UNS S31635)

Packing:    TEFLON™ in valve stem.

0-Rings: Viton* (standard), others upon request Only in horizontal connections. No 0-rings in vertical connections.

Fittings:    Stainless steel Type 316-Ti (UNS 531635

Other Parts

Housing:    Polycarbonate (standard), stainless steel frame-glass-window optional.

Baseplate:    Aluminum anodized, stainless steel optional

Housing protection:   IP 64

Purgemeter with Alarm

Alarm Type
Slot initiator SJ2 (P&F), EEx ia IIC T6, EEx ib IIC T6 (max. 1 13 F (45 C))

Certificate of conformity
PTB No. Ex 83/2022x
Factory Mutual Approved. Non incentive Class I, Div. 2, Groups A, B, C, D, Suitable for Class II, Div. 1, Groups E, F, and G.

Switching Point
Low alarm 01060%, High alarm 40 to 100%, Double alarm mm. to max. Ca. 5%

Power supply (separately)
Transistor Type mini-relay (P&F), type WE 77/Ex 1; Type WE 77/Ex 2

CAPACITY TABLE 1
Float & Metering Tube

Vh

GPH

N 1/h

SCFH

cps

cps

psi

psia

psia

W.C.

1

0.26

35

1.30

4

4

10.20

14.50

--

3.2

1.60

0.42

54

2.00

4

4

10.20

14.50

--

3.2

2.50

0.66

100

3.70

6

6

10.20

14.50

--

3.2

4

1.06

160

5.9

6

6

10.20

14.50

--

3.2

6

1.60

230

8.40

18

18

10.20

14.50

--

3.2

10

2.60

350

13

18

18

10.20

14.50

--

3.2

16

4.20

540

20

18

18

10.20

14.50

--

3.2

25

6.60

850

31

18

18

10.20

14.50

--

3.60

40

10.60

1250

46

18

20

10.20

14.50

--

4.20

60

16

1900

70

18

22

10.20

14.50

--

5.00

100

26

3100

114

12

24

--

14.50

--

6.80

 

CAPACITY TABLE 2
Float & Orifice

Maximum Flow (3/8" NPT 100 to 300 I/h; 1/2" NPT 400 to 800 I/h; Vertical Connections

100

26

3200

117

8

50

--

58

4.40

24

160

42

5000

183

8

50

--

58

4.40

28

200

53

6200

227

8

50

--

58

4.40

32

250

66

7800

286

8

50

--

58

4.40

36

300

79

9200

337

8

50

--

58

4.40

40

400

105

12500

458

4

50

--

58

4.40

30

500

132

15000

550

4

50

--

58

4.40

34

600

159

18000

660

4

50

--

58

4.40

38

700

185

21000

770

4

50

--

58

4.40

46

800

211

24000

880

4

50

--

58

4.40

52

[1]    Vstd:    Allowable viscosity without calibration.
[2]    Vmax:    Max. allowable viscosity with calibration if other than Vstd [1].
[3]    Pditf:    Mm. required AP in psi it operating with differential pressure regulator. "-" not available.
[4]    Pstat:    Mm. required pressure in psia to eliminate float bounce, without using twisted guide rod float.
[5]    Pmin:    Mm. required pressure in psia with gas damping (twisted rod). "-" not available.
[6]    delta P:    Total pressure loss at maximum flow.


Power Supply
Refer to Model Number Designation

Approvals
Control circuit (Ex)iG5 intrinsic safety; Certificate of conformity: Ex PTB 79/2043X; Factory Mutual Approved: Intrinsically Safe Class I, II, Div. 1, Groups A, B, C, D, E, F, and G. The WE77 relay must be located in a non-hazardous area.

Contact rating
max. 250 V, max. 4A, 500 VA

Repeatability
<= 0.5% of full scale

Allowable ambient temperature
-13 to 212 F (-25 to + 100 C) for slot initiator (not Ex)

Purgemeter with Opto. Elec. Transmitter in Ex-Design

Supply voltage
max 30 V dc

Output signal
4-20 mA, 2-wire

Ex-Protection:
Ci, <1 nF, Li .360> µH per EN 50014 and EN50020
EEx iblIC T6

Conformity Certificate
DEMCO Nr. 90 c. 98014 x (Comparable to Intrinsic Safe Class I, Div. 2, Gps C&D)

Ambient temperature
-4 to 104 F (-20 to + 40 C)

Differential Pressure Regulator
Model 53RT2110

Differential pressure
Max. 100 psi

Connections
112M NPTI
*Viton must never be used for Ammonia service.  Delta P regulator of stn. steel and meter body can be equipped with diaphragm and 0-rings of Buna N.

Wetted parts
Body:    316 stainless steel
Diaphragm: Viton A*
Springs:    316 stainless steel
Valve seat and shaft: 316 stainless steel
Max. Pressure: 200 psig (1380K Pa) at 100 F (38 C)

Ordering information
Model number
Materials of construction
Scale graduation
Operating conditions
    Fluid to be metered
Max. flowrate
Fluid density and viscosity at operating
conditions
    Operating and max. temperature and pressure
Customer standard conditions
Options