Armstrong 174033MF-043, Model S-35, Bronze In-Line Pump With 2" NPT Flanges, Series S, 1/6 HP, 115 Volts, 1 Phase, 72 GPM Max, Lead Free, Maintenance Free Design
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FEATURES
Armstrong Series S Maintenance Free Circulator Pump
This Armstrong In-Line circulator is suitable for domestic hot water systems. It is built using a standard three-piece design that features a radially-split body, oversized shaft, centrifugal impeller, positive mechanical seal and modular construction. This circulator has been used by HVAC professionals for decades because it is cost-effective, durable and easy to maintain.
Features
- Maintenance free design which has permanently lubricated ball bearings and requires no maintenance at all
- Radially-split body can be left in-line while servicing pump, eliminating disconnecting of pipes
- Oversized shaft made from stainless steel
- Balanced centrifugal impeller ensures maximum water delivery in the HVAC system
- Proven seal design made from strong and long-lasting materials for extended operating life
- Three piece modular construction and back pull-out design for easy replacement of wear components
- Certified ≤ 0.25 weighted average percent lead and complies with California Health and Safety Code Section 116875 (commonly known as ab1953)
PLEASE NOTE: The correct maximum fluid temperature for this pump is 225°F/107°C.
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| Mfg. Number | 174033MF-043 |
| Model | S-35 |
| Product Type | In-line circulator |
| Application | Domestic water systems |
| Series | S |
| Horsepower | 1/6 HP |
| Voltage | 115 Volts |
| Phase | 1 |
| Frequency | 60 Hz |
| Speed | 1800 RPM |
| Design | Three piece |
| Motor Type | ODP |
| Flanges | 2" NPT |
| Maximum Flow | 72 GPM |
| Maximum Head | 11 ft |
| Pump Body | Lead free bronze |
| Volute Material | Lead free bronze |
| Impeller Material | Non-ferrous |
| Thermal Overload Protection | Yes |
| Maximum Fluid Temperature | 107°F |
| Maximum Operating Conditions | 125 psi at 225°F |
The Armstrong S series of in-line circulator pumps is suitable for domestic hot water systems. This series is built using a standard three-piece design that features a radially-split body, oversized shaft, centrifugal impeller, positive mechanical seal and modular construction. The S series has been used by HVAC professionals for decades because it is cost-effective, durable and easy to maintain. Features
- Maintenance free design which has permanently lubricated ball bearings and requires no maintenance at all
- Radially-split body can be left in-line while servicing pump, eliminating disconnecting of pipes
- Oversized shaft made from stainless steel
- Balanced centrifugal impeller ensures maximum water delivery in the HVAC system
- Proven seal design made from strong and long-lasting materials for extended operating life
- Three piece modular construction and back pull-out design for easy replacement of wear components
- Certified ≤ 0.25 weighted average percent lead and complies with California Health and Safety Code Section 116875 (commonly known as ab1953)
| ARMSTRONG S SERIES CIRCULATOR PUMPS |
Armstrong S Series Circulator Pumps
Model Comparison Chart
| Model | Flanges (NPT) | HP | Voltage | Material of Construction | GPM | Max. Head |
| S-25 | Sold separately | 1/12 | 115 | Bronze | 31 | 6' |
| S-35 | 2" | 1/6 | 115 | Cast Iron | 72 | 11' |
| S-45 | Sold separately | 1/4 | 115 | Bronze | 109 | 16' |
| S-46 | 3" | 1/3 | 115 | Cast Iron | 112 | 19' |
| S-55-3 | 3" | 1/2 | 208-230/460 | Cast Iron | 121 | 24' |
| S-35 | 2" | 1/6 | 115 | Bronze | 72 | 11' |
| S-46 | 3" | 1/3 | 115 | Cast Iron | 112 | 19' |
| S-55-1 | 3" | 1/2 | 115/230 | Cast Iron | 121 | 24' |
| S-55-3 | 3" | 1/2 | 208-230/460 | Cast Iron | 121 | 24' |
| S-57-3 | 3" | 3/4 | 208-230/460 | Cast Iron | 139 | 29' |
| S-57-3 | 3" | 3/4 | 208-230/460 | Cast Iron | 139 | 29' |
| S-57-1 | 3" | 3/4 | 115/230 | Cast Iron | 139 | 29' |
| S-45 | Sold separately | 1/4 | 115 | Bronze | 109 | 16' |
| S-55-3 | 3" | 1/2 | 208-230/460 | Bronze | 121 | 24' |
| S-55-1 | 3" | 1/2 | 115/230 | Bronze | 121 | 24' |
| S-69-1 | 3" | 1 | 115/230 | Cast Iron | 160 | 34' |
| S-69-3 | 3" | 1 | 208-230/460 | Cast Iron | 160 | 34' |
| S-57-3 | 3" | 3/4 | 208-230/460 | Bronze | 139 | 29' |
| S-57-3 | 3" | 3/4 | 208-230/460 | Bronze | 139 | 29' |
| S-57-1 | 3" | 3/4 | 115/230 | Bronze | 139 | 29' |
| S-55-1 | 3" | 1/2 | 115/230 | Bronze | 121 | 24' |
| S-55-3 | 3" | 1/2 | 208-230/460 | Bronze | 121 | 24' |
| S-46 | 3" | 1/3 | 115 | Bronze | 112 | 19' |
| S-57-1 | 3" | 3/4 | 115/230 | Bronze | 139 | 29' |
| S-69-3 | 3" | Bronze | 1 | 208-230/460 | 160 | 34' |
| S-69-1 | 3" | 1 | 115/230 | Bronze | 160 | 34' |
| PERFORMANCE CURVES |
| DIMENSIONS |
| DESIGN INFORMATION |
| MATERIALS OF CONSTRUCTION |
| REPAIR PARTS |
*For a complete part listing please refer to the repair parts manual
| BROCHURE |
| Armstrong S Series Circulator Pump Brochure |
| INSTALLATION MANUAL |
| Armstrong S Series Circulator Pump Installation Manual |
| REPAIR PARTS |
| Armstrong S Series Circulator Pump Repair Parts |
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*Note: Picture is illustrative and may not reflect the actual product.*
