Constant Pressure Water System Supplier in the Philippines for Commercial Buildings

JOHOB Hardware Trading supplies constant pressure water systems nationwide in the Philippines: vertical multistage pumps, VFD duplex control panels, hydropneumatic pressure tanks, and piping, quoted and delivered as one package. Equipment carries ISO 9001, TUV SUD, CE, and WRAS certification. Standard lead time is 21 to 35 days ex-stock or 45 to 90 days made-to-order, with RFQ response within 1 business day.

A JOHOB constant pressure system pairs four parts quoted and delivered together: a vertical multistage centrifugal pump, a VFD duplex control panel, a hydropneumatic pressure tank, and the connecting piping, fittings, and valves. The VFD (variable frequency drive) panel is what makes the system constant pressure rather than simple on and off cycling: it modulates pump speed continuously to hold outlet pressure steady as demand rises and falls across a building, instead of letting pressure spike and drop between pump starts. Duplex configuration means two pumps share the load and alternate duty, so the building keeps water pressure if one pump is down for maintenance. The hydropneumatic tank absorbs small demand swings so the pump does not short-cycle on every faucet or fixture opening. Piping, fittings, and accessories are supplied as SS flexible hose and ball or gate valves sized to the package, not sourced separately by the buyer. Every component in the package is quoted together so the pump curve, VFD panel rating, and tank size are matched to each other and to the building’s actual demand, rather than assembled from mismatched parts bought individually. This is the same four-part structure used across JOHOB’s commercial booster pump and hydropneumatic tank lines, so a buyer comparing a dedicated constant pressure package against a standalone pump or a standalone tank is comparing a matched system against parts that still need to be sized against each other separately.

Sizing a constant pressure system correctly requires five inputs from the building: peak simultaneous demand in liters per minute, required outlet pressure at the farthest or highest fixture, the number of floors or vertical lift, the incoming water supply pressure and flow, and whether the building needs duplex (two-pump) redundancy for continuous operation. These inputs determine which pump curve, VFD panel rating, and tank size go into the package. A VFD duplex panel is specified over a fixed-speed setup whenever demand fluctuates significantly through the day, which is the normal pattern for hotels, hospitals, commercial laundry facilities, and multi-tenant buildings; a fixed-speed pump with a hydropneumatic tank alone is adequate only where demand is comparatively steady. Underestimating peak demand or vertical lift results in a package that cycles too often or fails to maintain pressure at upper floors; oversizing wastes capital on a larger VFD panel and pump than the building will ever call on. JOHOB works from the five inputs above to quote pump, panel, and tank as one matched set rather than quoting a pump alone and leaving the buyer to size the panel and tank separately. Buyers who do not yet have flow and pressure figures on hand can supply floor count, building type, and fixture count instead, and JOHOB will work from standard PH commercial demand benchmarks to propose a package for confirmation before quotation is finalized.

Every JOHOB constant pressure system ships with documentation covering the certifications carried by its components. Pumps and electrical panels are sourced from an ISO 9001 certified partner factory, meaning the manufacturing process itself is quality-managed and audited, not just the finished product. VFD duplex panels and material handling components carry CE marking.

Pressure vessels are ASME rated where applicable to the vessel type. Equipment is TUV SUD tested. Where a system includes tank components, those tank panels are WRAS-certified, the UK water fitting standard used internationally as a benchmark for potable water contact safety. These certifications are supplied as documentation with the system, not just referenced on the page, so the buyer’s facilities or compliance team has paperwork to file rather than a marketing claim to verify independently. This matters most for institutional buyers (hospitals, food processing facilities, PEZA and SBMA locators) where procurement requires certification paperwork before a purchase order can be issued, and for buyers preparing a permit or accreditation file that references the equipment installed. JOHOB does not claim manufacturing of tank components in-house; tank content is sourced from a vetted overseas manufacturer under the ISO 9001 certified partner factory relationship described above, and JOHOB’s role is sourcing, quoting, local warranty, and after-sales support on the finished package.

Pricing for a constant pressure system is quote-based; JOHOB does not publish prices because pump, panel, and tank specifications vary by building demand, so no two systems are priced the same. RFQs receive a response within 1 business day. Once a system is specified and confirmed, standard lead time is 21 to 35 days for ex-stock configurations and 45 to 90 days for made-to-order configurations, depending on the pump, panel, and tank combination required. VAT-registered buyers are quoted with 12% VAT applied; PEZA and SBMA locators and qualifying exporters are quoted at zero-VAT, and this distinction is confirmed before the formal quotation is issued so the buyer’s finance team is not reconciling VAT treatment after the fact. Quotations do not include milestone billing schedules published on this page; payment terms are confirmed directly with the buyer as part of the quotation process. Buyers preparing a procurement file or purchase requisition can use the lead time and VAT figures above for planning purposes ahead of receiving a formal quote, and should account for the longer 45 to 90 day window if the required pump, panel, or tank combination is not held ex-stock.

JOHOB supplies constant pressure water systems nationwide, covering NCR, Luzon, Visayas, and Mindanao, including PEZA, SBMA, and Clark economic zone facilities. Facility types commonly specifying a constant pressure package include hotels and hospitality properties, hospitals and healthcare facilities, food processing plants, commercial laundry operations, and multi-tenant or high-rise commercial buildings, all of which see demand fluctuate sharply through the day and need pressure held steady rather than cycling with each fixture use. PEZA and SBMA locators and export-oriented facilities are a distinct segment JOHOB serves directly, since these buyers typically qualify for zero-VAT treatment on equipment purchases rather than the standard 12% VAT applied to VAT-registered domestic buyers, and this affects how the quotation is structured before it is issued. Coverage extends to vertical or multi-floor buildings where lift and demand at upper floors are the main sizing constraint, as well as single-story industrial and institutional facilities where the constraint is peak simultaneous demand rather than height. Regardless of facility type or location, every constant pressure system is quoted as one package covering pump, VFD panel, tank, and piping together, delivered with the certifications and lead times that apply nationwide, not adjusted informally by region.

Where a constant pressure system is paired with a water storage tank, the tank side of the package is supplied under TankSmith, JOHOB’s sister brand for modular FRP, GRP, HDG, and stainless steel bolted tanks. TankSmith and JOHOB quote the tank and pressure system together as one package rather than as two separate purchases from two separate vendors, so the pump curve, VFD panel, and tank draw-down volume are sized against each other from the start. This matters for buildings where the tank feeds the pump set directly, since an undersized tank draw-down volume causes the same short-cycling problem an undersized hydropneumatic tank causes on the pressure side. Buyers who already have a JOHOB or TankSmith quotation for water storage can reference that quotation when requesting a constant pressure system quote so the two are sized as one system rather than reconciled after both are already specified separately. For buyers evaluating water storage separately from the pressure system, TankSmith’s own product pages cover tank sizing, material selection (FRP, GRP, HDG, or stainless steel), and WRAS-certified panel specifications in more detail than this page addresses.

• 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