Maintenance-Free Circulators
Cast Iron Wet Rotor/NRF
Description:
1.- DuraGlide™ Bearing System (blue areas in cutaway illustration) incorporates several components working together to eliminate seasonal freeze-up.
2.- Powerful motor provides years of trouble-free operation.
3.- One-piece, high-nickel stainless steel stator can isolates the stator from system fluid and maintains precision bearing alignment for longer bearing life.
4.- Carbon bearings, diamondlike ceramic shaft and generous clearances are more resistant to lime, chloride and oxide build-up.
5.- Face plate and rotor sleeve feature corrosion resistant stainless steel construction for longer life.
6.- Self-cleaning particle shield protects the shaft and bearings from system start-up debris.
7.- Stabilized, heat resistant, non-ferrous impeller, its closed design improves operating efficiency.
Operating Data:
Maximum working pressure . . . . . . . . . . . . . . .150 psi (10 bar)
Maximum operating temperature
NRF-22 & NRF-9F/LW. . . . . . . . . 240°F (115°C)
NRF-33. . . . . . . . . . . . . . . . . . . 225°F (107°C)
Curves:
Dimensions and Weights:
| Model Number |
Part Number |
Flange Size Inches - NPT |
Dimensions nches (mm) |
Standard 60Hz Motor Characteristics* |
Approx. Shpg. Wt. lbs (Kg) |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | Watts | Diam. | Voltage | F.L. Amps | RPM | ||||
| NRF-22 | 103251 | 3/4, 1, 1-1/4, 1-1/2 | 6-3/8 (162) | 5-9/16 (141) | 4-7/8 (124) | 92 | 1 | 115 | 0.8 | 2940 | 9.3 (4.2) |
| NRF-9F/LW | 103267 | 3/4, 1, 1-1/4, 1-1/2 | 6-3/8 (162) | 5-9/16 (141) | 4-7/8 (124) | 41 | 0.4 | 2800 | 9.3 (4.2) | ||
| NRF-33 | 103350 | 3/4, 1, 1-1/4, 1-1/2 | 6-1/8 (156) | 6-3/16 (157) | 5-1/8 (130) | 125 | 1.1 | 2950 | 10.4 (4.7) | ||
| NRF-36** | 103400 | 3/4, 1, 1-1/4, 1-1/2 | 6-3/8 (162) | 6-7/8 (175) | 5-3/4 (146) | 260 | 2.3 | 3200 | 12.9 (5.6) | ||
| NRF-45** | 103404 | 1, 1-1/4, 1-1/2 | 8-1/2 (216) | 7-3/8 (187) | 5-7/8 (149) | 260 | 2.3 | 3200 | 14.4 (6.5) | ||
*230/60/1 motor available upon request. Impedance protected.
Dimensions are approximate and subject to change. Consult factory for certified dimensions.
** NRF-36, NRF-45 are three-speed circulators, high speed performance curve shown.
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IDEMSA
Unión 27, Local P. B.
Col. Escandón
C. P. 11800, México, D. F.
Email: bygidemsa@prodigy.net.mx
Tel.: (55) 5272-0219
Fax: (55) 5516-1698