Varem Bladder Tank Supplier in the Philippines: ISO 9001 Pressure Tanks

A Varem bladder tank is a hydropneumatic pressure vessel with a rubber diaphragm that holds a pre-charged air cushion to maintain constant water pressure in a booster pump system. JOHOB Hardware Trading supplies ISO 9001 certified, TUV SUD tested bladder-type pressure tanks as Varem-equivalent units nationwide across the Philippines, with RFQ responses within 1 business day and ex-stock lead times of 21 to 35 days.

A Varem bladder tank, more precisely called a bladder-type hydropneumatic pressure tank, holds a rubber diaphragm inside a steel shell. The diaphragm separates a pre-charged air cushion from the water, so the tank stores pressure instead of raw volume. In a booster pump system, this pressure cushion absorbs the pump's on and off cycling, holds line pressure steady between pump starts, and cuts down how often the pump motor starts and stops. Fewer starts per hour means less wear on the motor, the check valve, and the pressure switch, which matters most in buildings with intermittent demand such as hotels, hospitals, and multi-story residential towers. Buyers search the Varem name because Varem-brand tanks were common in older installations across the Philippines and are now due for replacement or expansion. JOHOB Hardware Trading supplies bladder-type pressure tanks built to the same working principle and rated for the same duty, sized to match an existing booster system's flow rate and shutoff pressure. The tank is quoted as part of a complete package: pump, VFD or star-delta control panel, piping, and the pressure tank sized to the panel's cut-in and cut-out settings, so the vessel and the pump curve match on delivery instead of being guessed on site.

Every bladder-type pressure tank JOHOB supplies is sourced from an ISO 9001 certified partner factory and is TUV SUD tested before it ships. ISO 9001 covers the factory's quality management system, meaning welds, pressure testing, and dimensional checks follow a documented process on every production run. TUV SUD testing verifies the vessel holds its rated working pressure without deformation or leak, which is the same standard buyers look for when specifying a Varem-equivalent tank for a hospital, hotel, or industrial site. Where the application calls for it, tanks are available built to ASME standards for pressure vessel design, on request at quote stage. These certifications apply to the pressure vessel itself: the steel shell, the internal bladder, and the connection fittings. They do not extend to a claim of Varem brand origin, and JOHOB states that distinction plainly so a buyer's procurement file has an accurate paper trail. For a PEZA, SBMA, or Clark-based buyer, the certification documents are also what accompanies the zero-VAT paperwork, since the equipment specification needs to match what customs and the locator's authority expect on the import or transfer documentation for the site.

JOHOB Hardware Trading is not a Varem distributor and carries no affiliation, partnership, or dealership agreement with the Varem brand. The reason buyers land on this page while searching for a Varem bladder tank is that Varem is a well-known name for hydropneumatic pressure tanks in the Philippine market, and the search is really for a bladder-type pressure tank that does the same job, whether or not it carries that specific badge. JOHOB supplies bladder-type pressure tanks sourced from a vetted, ISO 9001 certified partner factory as functional equivalents: same working principle, same pressure ratings, same fitting standards, sized to the same booster pump specifications a Varem unit would need to match. If a project genuinely requires a Varem-branded unit specifically, for example to match an existing installation's spare parts inventory or a specification that names the brand, JOHOB is not the right source and a buyer should say so directly on the RFQ so the quote is not built around the wrong product. Being upfront about this at the top of the buying process, rather than after a quote is issued, is what keeps the specification and the procurement paperwork consistent from RFQ to delivery.

Pricing for a bladder-type pressure tank is quote-based since the final number depends on tank capacity, connection size, pressure rating, and whether it ships alone or as part of a complete pump package. JOHOB does not publish a public price list for pressure vessels. What is fixed and quotable upfront is the process: an RFQ gets a response within 1 business day, so a buyer sizing a project timeline knows within a day whether the specification needs adjustment before it goes further. Standard, ex-stock tank sizes ship in 21 to 35 days from order confirmation. Made-to-order sizes, non-standard connection configurations, or units bundled into a custom panel package run 45 to 90 days. VAT-registered buyers pay the standard 12% VAT. Buyers registered with PEZA or SBMA, and exporters with the correct documentation, qualify for zero-VAT treatment on the purchase, handled at the quotation stage once the buyer's registration details are on file. None of these figures require negotiation to access. They are the standard terms quoted to every buyer regardless of order size, which is also why they can be stated here rather than left for a sales call to reveal.

JOHOB delivers bladder-type pressure tanks nationwide, covering Metro Manila, the rest of Luzon, Visayas, and Mindanao. This includes direct coverage of PEZA economic zones, the Subic Bay Freeport (SBMA), and Clark, where a large share of buyers are export manufacturers or logistics operators with zero-VAT purchasing requirements alongside a fixed installation timeline tied to a facility handover date. Delivery scheduling is coordinated against the same lead time bands used for quoting, 21 to 35 days ex-stock or 45 to 90 days made-to-order, so a buyer working against a construction or fit-out schedule can lock in a delivery window at the time of order rather than finding out the real timeline after payment. For sites outside Metro Manila, freight is arranged to the project address, and the same certification paperwork, ISO 9001 and TUV SUD test documentation, travels with the shipment so the receiving engineer has what is needed for commissioning and, where applicable, for the locator's customs or import file.

A bladder-type pressure tank only performs correctly when it is sized against the pump curve and control panel it is paired with. JOHOB's pumping and pressure systems line covers vertical multistage centrifugal pumps, VFD duplex control panels, and complete pump system packages built around Inovance or Chutian panel components, so the pressure tank can be quoted and sized alongside the pump rather than bought as an isolated part and hoped to fit. This matters most on a booster system replacement, where the existing pump's flow rate and the panel's cut-in and cut-out pressure settings determine the tank size, not the other way around. Buyers replacing an aging Varem-branded tank as part of a larger booster system upgrade can request the pump, panel, and tank quoted together as one package, with one delivery timeline and one set of certification documents, instead of coordinating separate vendors for each component. For sites that also need water storage ahead of the booster system, JOHOB's sister brand TankSmith supplies FRP modular tanks, so the storage side and the pressure side of the same water system can be scoped from compatible sources without a second, unrelated sourcing search.

• Hydropneumatic Bladder Pressure Tank
• Commercial Booster Pumps
• VFD Duplex Control Panel
• Guide: How to Size a Booster Pump
• 200L Diaphragm Pressure Tank Supplier
• TankSmith Water Storage Tanks

Reviewed: September 2026