WellMate Corrosion-Resistant Pressure Tanks – Promotional Price and Ready Stock
PT Watermart Perkasa is an authorized Pentair WellMate agent in Indonesia, supplying composite pressure tanks for homes, buildings, commercial facilities, and industrial systems.
WellMate Pressure Tanks use a lightweight, durable composite construction that resists rust and corrosion. They help stabilize water pressure, reduce pump cycling, and improve water-distribution efficiency.
Contact Watermart for promotional pricing, official warranty, model-selection support, and delivery throughout Indonesia.
Promotions and availability may change. Contact Watermart for the latest price and stock information.
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Stable Water Pressure with WellMate
A pressure tank temporarily stores pressurized water before it reaches points of use. This reduces the need for the pump to start whenever a tap opens.
WellMate Pressure Tanks can:
- Maintain more stable water pressure.
- Reduce pump starts, stops, and short cycling.
- Extend pump service life.
- Provide a reserve of pressurized water.
- Reduce pressure surges in the system.
WellMate Models and Specifications
Capacity, Pressure, and Drawdown
| Model | Capacity gal/L | Maximum PSI/bar | Drawdown 30/50 gal/L |
|---|---|---|---|
| WM-4 | 14.5 / 55 | 125 / 8.5 | 4.4 / 16.5 |
| WM-6 | 19.8 / 75 | 125 / 8.5 | 5.9 / 22.5 |
| WM-9 | 29.5 / 112 | 125 / 8.5 | 8.9 / 33.5 |
| WM-12 | 40.3 / 153 | 125 / 8.5 | 12.1 / 45.8 |
| WM-14WB | 47.1 / 178 | 125 / 8.5 | 14.1 / 53.5 |
| WM-20WB | 60 / 227 | 125 / 8.5 | 18.0 / 68.1 |
| WM-25WB | 86.7 / 328 | 125 / 8.5 | 26.0 / 98.5 |
| WM-35WB | 119.7 / 453 | 125 / 8.5 | 35.9 / 135.9 |
Connections and Tank Dimensions
| Model | Connection | Diameter in/cm | Height in/cm |
|---|---|---|---|
| WM-4 | 1” MNPT | 16 / 41 | 26 / 66 |
| WM-6 | 1” MNPT | 16 / 41 | 32 / 81 |
| WM-9 | 1” MNPT | 16 / 41 | 44 / 112 |
| WM-12 | 1” MNPT | 16 / 41 | 57 / 145 |
| WM-14WB | 1.25” MNPT | 21 / 53 | 41.25 / 105 |
| WM-20WB | 1.25” MNPT | 24 / 61 | 41.5 / 105 |
| WM-25WB | 1.25” MNPT | 24 / 61 | 55.25 / 140 |
| WM-35WB | 1.25” MNPT | 24 / 61 | 74.25 / 189 |
Inlet Height and Units per Pallet
| Model | Inlet height in/cm | Units per pallet |
|---|---|---|
| WM-4 | 1.75 / 4.4 | 9 |
| WM-6 | 1.75 / 4.4 | 9 |
| WM-9 | 1.75 / 4.4 | 9 |
| WM-12 | 1.75 / 4.4 | 9 |
| WM-14WB | 2.25 / 5.7 | 4 |
| WM-20WB | 2.25 / 5.7 | 4 |
| WM-25WB | 2.25 / 5.7 | 4 |
| WM-35WB | 2.25 / 5.7 | N/A |
Note: Drawdown is the usable water volume between pump cut-in and cut-out pressure. Nominal tank capacity is not the same as effective usable water volume.
Ready Stock WellMate Pressure Tanks
Watermart supplies multiple Pentair WellMate models. Selection should consider pump flow, operating pressure, number of outlets, required reserve, and application.
Customers receive official products and warranty, technical selection assistance, nationwide delivery support, and options for individual or project orders.
Check WellMate Stock and Pricing
Advantages of Pentair WellMate Pressure Tanks
Corrosion-Resistant Composite Tank
The composite body does not rust like conventional steel, making it suitable for humid pump rooms and corrosive environments.
Lightweight and Easy to Install
Its lower weight simplifies transport, handling, and installation.
Stable Water Pressure
Stored pressurized water helps reduce rapid pressure fluctuations and excessive pump cycling.
Efficient Drawdown and Low Maintenance
Correct drawdown reduces pump starts and stops. The composite body also does not require repainting like a metal tank.
Multiple Capacity Options
Models range from the 55-liter WM-4 to the 453-liter WM-35WB for homes, apartments, hotels, hospitals, factories, and water treatment installations.
Composite Construction for Modern Water Systems
Composite construction performs well in humid pump rooms, coastal areas, groundwater systems, high-rise buildings, and corrosive industrial environments.
WellMate WM-14WB
The WM-14WB has a nominal capacity of approximately 178 liters and a 1.25-inch MNPT connection. It suits medium-demand applications such as large homes, commercial buildings, public facilities, and booster-pump systems.
Before installation, verify pump cut-in and cut-out pressure, tank pre-charge, pump flow, connection size, required drawdown, and available installation space.
WellMate WM-25WB
The WM-25WB has a nominal capacity of approximately 328 liters and about 98.5 liters of drawdown at a 30/50 PSI setting. It suits systems that need a larger pressurized reserve and longer pump-running intervals.
WellMate Applications
WellMate tanks can be used in homes, buildings, apartments, hotels, commercial facilities, industrial plants, reverse-osmosis systems, well pumps, booster pumps, and irrigation systems. Tank capacity, material, and pressure rating must match the system design.
How to Select WellMate Capacity
Consider pump flow, cut-in and cut-out pressure, number of outlets, minimum pump runtime, installation space, and application. Provide Watermart with pump capacity, flow, pressure settings, and usage data for an initial recommendation.
Ask Watermart to Recommend a WellMate Model
Composite Pressure Tanks vs. Conventional Steel Tanks
| Factor | WellMate Composite | Conventional Steel Tank |
|---|---|---|
| Rust resistance | Does not readily rust | Can develop rust |
| Weight | Lighter | Generally heavier |
| Handling | Easier | May require additional labor or equipment |
| Body maintenance | Relatively low | May require repainting |
| Humid environments | Suitable | Requires more protection |
| External corrosion risk | Low | Higher |
| Installation | More practical | Can be more complex |
Why Buy WellMate from PT Watermart Perkasa?
Customers receive products through an official distribution channel, a one-year official warranty subject to terms, capacity-selection support, technical information, project assistance, and delivery to cities throughout Indonesia.
See other Pentair products in Indonesia and the Pentair WellMate product page.
Frequently Asked Questions
Can a WellMate Pressure Tank rust?
Its composite body does not readily rust like a conventional steel tank.
What does a WellMate Pressure Tank do?
It stores pressurized water, stabilizes pressure, and reduces pump starts and stops.
Is WellMate suitable for homes, buildings, and industrial systems?
Yes. WM-4 through WM-12 suit many residential uses, while WM-14WB through WM-35WB can serve building, commercial, and industrial systems when correctly selected.
What is the maximum pressure?
The models listed here have a maximum pressure rating of 125 PSI, approximately 8.5 bar.
What is the difference between nominal capacity and drawdown?
Nominal capacity is the tank’s total volume. Drawdown is the usable water volume between pump cut-in and cut-out pressure.
Product Information
- Product: Pentair WellMate Pressure Tank
- Type: Composite pressure tank
- Models: WM-4 through WM-35WB
- Maximum pressure: 125 PSI / 862 kPa / 8.5 bar
- Nominal capacity: 55–453 liters
- Applications: Homes, buildings, commercial and industrial systems, booster pumps, and water treatment
- Supplier: PT Watermart Perkasa
- Service area: Indonesia