Monarch Industries ACE-S100SD Centrifugal Pump & Repair Parts
Monarch Industries ACE-S100SD (1 HP) Square Flange Centrifugal Pump
The Monarch Industries ACE-S100SD is a rugged 1 HP End Suction Centrifugal Pump designed for high-efficiency water transfer and booster applications. As part of the ACE-S Series, this model utilizes a Square Flange motor design, offering distinct maintenance advantages and a compact footprint for residential and commercial installations.
Built for longevity, the ACE-S100SD features a thick-wall cast gray iron casing that dampens vibration and withstands harsh environments. Inside, it houses an enclosed glass-filled Noryl impeller reinforced with a stainless steel hub. This smooth-surface impeller design maximizes hydraulic efficiency, allowing the pump to deliver up to 60 GPM while resisting corrosion and mineral buildup better than standard cast iron impellers.
Key Features of the ACE-S100SD
- 1 HP Performance: Powered by a 3600 RPM, single-phase, Square Flange motor (Dual Voltage 115/230V) with thermal overload protection.
- Engineered Impeller: The glass-filled Noryl impeller provides a smooth waterway for high efficiency and is reinforced with a stainless steel hub for durability.
- Square Flange Mounting: Designed for Square Flange motors, ensuring easy replacement and secure alignment.
- Moisture Protection: A shaft flinger and large drain hole in the adapter bracket actively prevent moisture from reaching the motor bearings.
- Quality Seals: Comes standard with a Buna/Carbon-Ceramic mechanical seal for reliable, leak-free performance.
- Maintenance Friendly: Features accessible drain plugs to prevent frost damage and facilitate air bleeding during priming.
Common Applications
The ACE-S100SD is a versatile workhorse suitable for:
- Lawn Sprinkling: Perfect for boosting pressure in medium-to-large irrigation zones.
- Water Transfer: Moving water from lakes, ponds, or cisterns to storage tanks.
- Pressure Boosting: Increasing line pressure for residential or light commercial water systems.
- General Duty: Reliable operation for non-solids water removal and circulation.
Technical Specifications & Performance
Performance Chart
| HP | Model | 20 ft | 30 ft | 40 ft | 50 ft | 60 ft | 70 ft | 80 ft | 100 ft |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ACE-S100SD | 60 | 57 | 54 | 49 | 44 | 39 | 32 | 12 |
ACE-S100SD Model Specifications
| Model No. | Order No. | HP | Suct. NPT | Disch. NPT | Electrical Characteristics | Ship Wt. (lbs.) |
|---|---|---|---|---|---|---|
| ACE-S100SD | 614563 | 1 | 1-1/4″ | 1″ | 1/60/115/230V | 37 |
Description: Single phase motors have built-in thermal overload protection. Stainless steel shaft or replaceable sleeve.
Dimensions (Inches)
| Model | Suction | Discharge | CP | D | E | F | H | L | M | N | OP | X | Y |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ACE-S100SD | 1-1/4″ | 1″ | 15.57 | 4.00 | 4.88 | 3.00 | 7/16×15/16 | 5.53 | 3.69 | 4.00 | 8.90 | 4.90 | 2.63 |
Repair Parts
| Ref. | Code # | Qty. | Description |
|---|---|---|---|
| 1 | 437842 | 1 | Casing (Fits 1/2 HP – 1 HP) |
| 2 | 433125 | 1 | Impeller (Glass Filled Noryl) |
| 3 | 437890 | 1 | Seal Plate |
| 4 | 438245 | 1 | Bracket |
| 5 | 246801 | 1 | End Cap |
| 15 | 164651 | 2 | Stud 3/8″ x 2″ |
| 16 | 164641 | 2 | Stud 3/8″ x 1 3/4″ Zn Pl. |
| 17 | 227830 | 4 | Nut Hex. 3/8 UNC Zn. Pl. |
| 18 | 227830 | 4 | Nut Hex. 3/8″ Zn. Pl. |
| 23 | 176230 | 4 | Spring Washer 3/8″ Zn Pl. |
| 25 | 185620 | 2 | Pipe Plug 1/4″ NPT Zinc Plated |
| 26* | 193914 | 1 | Gasket (Fits 1/2 HP – 1 HP) |
| 27* | 191790 | 1 | Flinger |
| 31* | 240250 | 1 | Mech. Seal MS-25 |
| 34 | 204154 | 1 | Motor 1 HP 1Ø 115/230V |
Frequently Asked Questions
Does the ACE-S100SD use the same casing as the 1.5 HP model?
No. The ACE-S100SD (1 HP) uses casing part #437842. The larger 1.5 HP and 2 HP models use a different casing (#437865).
What is the difference between this and the standard ACE-100?
The “S” in ACE-S100SD stands for “Square Flange” motor mount and “SD” indicates Side Discharge. The standard ACE-100 typically uses a C-Face motor and a cast iron impeller, while this S-Series uses a Square Flange motor and a Noryl impeller.
Is the ACE-S100SD motor dual voltage?
Yes, the 1 HP motor supplied with the ACE-S100SD is dual voltage and can be wired for either 115V or 230V single-phase power.
Which gasket do I need for the ACE-S100SD?
You need Gasket part #193914. This gasket fits models from 1/2 HP up to 1 HP.