Constant Pressure Water System Supplier in the Philippines

JOHOB Hardware Trading supplies complete constant pressure water systems to commercial and industrial buildings across the Philippines: VFD duplex control panels, vertical multistage pumps, hydropneumatic tanks, and piping accessories, quoted and delivered as one package. Standard lead times run 21 to 35 days ex-stock or 45 to 90 days made-to-order, with RFQ response within 1 business day and nationwide coverage including PEZA and SBMA zones.

A constant pressure water system from JOHOB is quoted and delivered as one coordinated package rather than separate components sourced from different suppliers. The core of the system is a VFD duplex control panel, which modulates pump speed to hold outlet pressure steady as demand rises and falls through the day, instead of cycling pumps on and off at fixed speed. Paired with the panel are booster, transfer, or submersible pumps sized to the building’s peak demand, along with hydropneumatic tanks that buffer short pressure swings between pump starts. Electrical panels in this category also cover SDE and star-delta configurations and MCC panels for larger installations, built around Inovance and Chutian VFD drives. On the piping side, the package includes stainless steel flexible hose and ball and gate valves so the mechanical room is fully specified in one RFQ rather than piecemeal. For buildings that also need water storage, the tank side of the package (FRP, GRP, HDG, or stainless steel modular tanks) is supplied under JOHOB’s sister brand TankSmith, so the full water supply chain, from storage tank to pressurized delivery, comes from a single quote and a single point of after-sales contact.

Sizing a constant pressure system starts with peak demand, not average demand: the panel and pumps have to hold pressure during the busiest minutes of the day, whether that is a hotel’s morning shower rush or a hospital’s simultaneous fixture use across multiple floors. JOHOB sizes systems to the fixture-unit and demand calculation methods set out in the Philippine National Plumbing Code (NSPC) and National Building Code (NBC), so the resulting pump curve and tank size are defensible against the code a facility’s engineer or contractor will be checking against, not just a rule-of-thumb multiplier. Because the VFD panel modulates speed rather than running pumps at a single fixed output, the system is sized around a duty point and a turndown range rather than a single worst-case number, which keeps energy draw down during the much larger share of the day when demand sits below peak. Building height, riser configuration, and whether the building draws from an elevated tank, ground tank, or direct line all change the required boost pressure and are factored into the quote. JOHOB’s RFQ process asks for basic building data (floors, fixture count, peak simultaneous demand estimate, and current or planned tank configuration) and returns a sized system quote within 1 business day.

Every constant pressure system JOHOB quotes is built from components carrying documented third-party certification, not just supplier claims. Electrical panels, including the VFD duplex control panels at the core of these systems, carry CE marking. Pump and panel manufacturing is done under an ISO 9001 certified quality management system, and components are TUV SUD tested. Where a system includes pressure vessels, those vessels are specified to ASME standards where applicable.

For projects that also draw on the TankSmith side of the package, tank-side panels carry WRAS certification. All of this documentation, test certificates, CE declarations, and ISO 9001 QMS references, is supplied with the system rather than available only on request, so the buyer’s own compliance or facilities team has what it needs for their internal records and for any regulatory or insurance review without having to chase paperwork after delivery.

JOHOB does not publish fixed prices for constant pressure water systems because system cost depends on pump count, panel sizing, tank configuration, and site-specific piping, so every system is quoted against the buyer’s actual building data. What is fixed is the process: RFQs get a response within 1 business day, and standard lead times run 21 to 35 days for ex-stock configurations or 45 to 90 days for made-to-order systems, so a buyer scoping a project timeline has a concrete window to plan against rather than an open-ended estimate. On tax treatment, standard VAT-registered buyers are charged the standard 12% VAT. Buyers operating as PEZA or SBMA locators, or as exporters, qualify for zero-VAT treatment on the purchase, which is a material cost difference for facilities inside those economic zones and should be flagged at RFQ stage rather than discovered at invoicing. Nationwide delivery is standard, covering NCR, the rest of Luzon, Visayas, and Mindanao, including PEZA, SBMA, and Clark zone facilities specifically.

JOHOB supplies constant pressure water systems nationwide across the Philippines: Metro Manila and the rest of Luzon, Visayas, Mindanao, and facilities operating inside PEZA, SBMA, or Clark economic zones, where the zero-VAT treatment described above applies. The systems described on this page serve commercial and institutional buildings broadly, spanning hospitality, healthcare, food and beverage processing, and multi-storey residential or mixed-use buildings, anywhere consistent water pressure across multiple floors or fixtures at once is the underlying requirement. Because pump, panel, and tank sizing all change with building type and demand pattern, JOHOB’s RFQ process is the same regardless of vertical: submit building and demand data, receive a sized quote within 1 business day, and confirm lead time based on whether the configuration is ex-stock or made-to-order. Buyers evaluating a system for a specific facility type (hotel, hospital, laundry, food plant, or industrial zone) can request sizing guidance specific to that vertical as part of the same RFQ rather than needing a separate inquiry.

A constant pressure system needs a water source to draw from, and that storage side is supplied through JOHOB’s sister brand TankSmith, which specializes in modular water tank turnkey installs. TankSmith supplies FRP, GRP, HDG, and stainless steel modular tanks sized to feed the pump and panel system described on this page, rather than requiring the buyer to source a tank separately and coordinate compatibility themselves. Because TankSmith and JOHOB operate as sister brands under the same sourcing and quality standard, a buyer can request a single combined quote covering the tank, pump, panel, and piping as one system with one delivery schedule and one warranty point of contact. For buyers who already have tank infrastructure in place and only need the pump and panel side, JOHOB quotes the pumping system independently as described in the sections above.

• Complete Booster Pump System
• VFD Duplex Control Panel
• Commercial Water Pressure Boosting Systems
• Variable Speed Booster Pump Quotation, Manila
• Guide: How to Size a Booster Pump

Reviewed: September 2026