- Flow measurement for air
- Tube material in PSU plastic
- Direct reading
- 2 set point indicators
- Alarm contacts in option
- Accuracy: Class 4
- Radial mounting: vertical, ascending flow
| Max pressure at 20°C: | 10 bar |
| Temperature limits: | 1) PVC: 0 to 50°C (water) 2) Polysulfon: 0 to 90°C (max 60°C with PVC fittings) |
| Float material: | PVDF |
| Float stopper: | PVDF |
| Float guiding rod: | DN50 & DN65 only, stainless steel with PVDF coating |
| Seals material: | EPDM (FPM on request) |
| Unions connection (standard model): | PVC, for solvent welding on site |
| Scales: | Nm3/h (1 to 10 bar ABS) |
Graduated Scales for Air in Nm3/h.
- Measuring tube in PSU
- 1 to 10 bar absolute pressure, temperature at 20°C
MEASURING RANGE
| DN | R | PDP Type | Code | 1 bar Abs Nm3/h | Code | 2 bar Abs Nm3/h |
| 10 | 3/8″ | 2.5 | 731 900 | 0.20 – 0.95 | 731 908 | 0.25 – 1.30 |
| 10 | 3/8″ | 5 | 731 901 | 0.5 – 1.9 | 731 909 | 0.7 – 2.7 |
| 10 | 3/8″ | 10 | 731 902 | 0.8 – 3.0 | 731 910 | 1 – 4.2 |
| 15 | 1/2″ | 15 | 731 903 | 1.4 – 5.6 | 731 911 | 2 – 8 |
| 15 | 1/2″ | 20 | 731 904 | 1.5 – 7.0 | 731 912 | 2 – 10 |
| 25 | 1″ | 30 | 731 905 | 1.5 – 11 | 731 913 | 2 -15 |
| 25 | 1″ | 50 | 731 906 | 3 – 18 | 731 914 | 4 – 25 |
| 25 | 1″ | 100 | 731 907 | 6 – 30 | 731 915 | 8 – 44 |
| DN | R | PDP Type | Code | 3 bar Abs Nm3/h | Code | 4 bar Abs Nm3/h |
| 10 | 3/8″ | 2.5 | 731 916 | 0.3 – 1.6 | 731 924 | 0.4 – 1.9 |
| 10 | 3/8″ | 5 | 731 917 | 0.8 – 3.4 | 731 925 | 1 – 3.8 |
| 10 | 3/8″ | 10 | 731 918 | 1.2 – 5.4 | 731 926 | 1.4 – 6.4 |
| 15 | 1/2″ | 15 | 731 919 | 2 – 10 | 731 927 | 3 – 12 |
| 15 | 1/2″ | 20 | 731 920 | 3 – 13 | 731 928 | 3 – 15 |
| 25 | 1″ | 30 | 731 921 | 2.5 – 18 | 731 929 | 3 -22 |
| 25 | 1″ | 50 | 731 922 | 5 – 30 | 731 930 | 5 – 35 |
| 25 | 1″ | 100 | 731 923 | 10 – 54 | 731 931 | 12 – 62 |
| DN | R | PDP Type | Code | 5 bar Abs Nm3/h | Code | 6 bar Abs Nm3/h |
| 10 | 3/8″ | 2.5 | 731 932 | 0.4 – 2.1 | 731 940 | 0.5 – 2.4 |
| 10 | 3/8″ | 5 | 731 933 | 1.2 – 4.2 | 731 941 | 1.2 – 4.6 |
| 10 | 3/8″ | 10 | 731 934 | 1.6 – 7 | 731 942 | 1.6 – 7.4 |
| 15 | 1/2″ | 15 | 731 935 | 3 – 13 | 731 943 | 3 – 14 |
| 15 | 1/2″ | 20 | 731 936 | 4 – 17 | 731 944 | 4 – 18 |
| 25 | 1″ | 30 | 731 937 | 3 – 24 | 731 945 | 4 – 26 |
| 25 | 1″ | 50 | 731 938 | 6 – 40 | 731 946 | 6 – 44 |
| 25 | 1″ | 100 | 731 939 | 12 – 70 | 731 947 | 15 – 75 |
| DN | R | PDP Type | Code | 7 bar Abs Nm3/h | Code | 8 bar Abs Nm3/h |
| 10 | 3/8″ | 2.5 | 731 948 | 0.5 – 2.5 | 731 956 | 0.5 – 2.7 |
| 10 | 3/8″ | 5 | 731 949 | 1.2 – 5 | 731 957 | 1.4 – 5.4 |
| 10 | 3/8″ | 10 | 731 950 | 2 – 8 | 731 958 | 2 – 8.8 |
| 15 | 1/2″ | 15 | 731 951 | 3.5 – 15 | 731 959 | 3.5 – 16.5 |
| 15 | 1/2″ | 20 | 731 952 | 4 – 20 | 731 960 | 5 – 21 |
| 25 | 1″ | 30 | 731 953 | 4 – 28 | 731 961 | 4 – 30 |
| 25 | 1″ | 50 | 731 954 | 8 – 48 | 731 962 | 8 – 50 |
| 25 | 1″ | 100 | 731 955 | 15 – 80 | 731 963 | 15 – 85 |
| DN | R | PDP Type | Code | 9 bar Abs Nm3/h | Code | 10 bar Abs Nm3/h |
| 10 | 3/8″ | 2.5 | 731 964 | 0.6 – 2.9 | 731 972 | 0.6 – 3.2 |
| 10 | 3/8″ | 5 | 731 965 | 1.4 – 5.8 | 731 973 | 1.6 – 6.4 |
| 10 | 3/8″ | 10 | 731 966 | 2 – 9 | 731 974 | 2 – 10 |
| 15 | 1/2″ | 15 | 731 967 | 4 – 17 | 731 975 | 4 – 18 |
| 15 | 1/2″ | 20 | 731 968 | 5 – 23 | 731 976 | 5 – 23 |
| 25 | 1″ | 30 | 731 969 | 4 – 33 | 731 977 | 5 – 34 |
| 25 | 1″ | 50 | 731 970 | 8 – 54 | 731 978 | 8 – 56 |
| 25 | 1″ | 100 | 731 971 | 20 – 90 | 731 979 | 20 – 95 |
PDP series flow-rate indicators are ideally suited for continuous monitoring of flow for air, with specific measuring scales in Nm3/h (1 to 10 bar ABS). The fluid flow raises a diver in a conical tube, expanding the cross section of the passage of fluid. The diver moves up proportionnaly to the flow-rate. The PDP rotameter must be installed vertically with rising fluid. It is recommended to have a length upstream of 10x DN and a length downstream of 5x DN.