Indus Industrial Group supplies heavy-duty Direct-Acting Spring-Loaded Diaphragm Pressure Reducing Valves engineered across nominal sizes from DN15 (1/2") to DN100 (4") in pressure classes PN16 and PN25 according to EN 1567 and DIN 1988 standards. Designed for commercial buildings, residential apartment complexes, water treatment dosing feeds, and industrial distribution branch lines across Iraq, these compact valves utilize high-rate stainless steel springs and fabric-reinforced EPDM diaphragms to step down high supply pressures directly without auxiliary pilot lines or external power.
| Pricing Verification | Commercial Quote on Demand (RFQ) |
| Governing Standards | EN 1567 / DIN 1988 / BS EN 1567 / ISO 5208 |
| Nominal Size Range | DN15 (1/2") to DN100 (4") Threaded BSP/NPT & Flanged |
| Inlet Pressure Rating | Up to 25.0 Bar (PN16 and PN25 classes) |
| Downstream Outlet Range | 1.0 Bar to 6.0 Bar (Standard adjustable spring) |
| Body Construction | Forged Brass DZR (CW602N) / Bronze / Ductile Iron EN-GJS-450 |
| Internal Diaphragm | Nylon-Reinforced EPDM (Drinking Water WRAS certified) |
| Internal Seat & Stem | Stainless Steel AISI 304/316 / Synthetic Polymer Cartridge |
| Strain Mesh Size | 0.16 mm to 0.25 mm Stainless Steel 316 Mesh |
| Pressure Gauge Ports | Dual 1/4" BSP Gauge Connections (Inlet & Outlet) |
| Operating Temperature | -10°C to +70°C continuous potable water duty |
| Sector & Division | Water & Wastewater (Div 01) |
| Parent Category | Pressure Reducing Valves |
Commercial high-rise building domestic water risers, hospital water pressure zoning, residential subdivision water meters, industrial cooling water branch reduction, and agricultural greenhouse irrigation across Baghdad, Erbil, Basra, Sulaymaniyah, and Najaf.
Direct-Acting Diaphragm Pressure Reducing Valves represent the essential compact pressure regulation technology for commercial building plumbing risers, residential apartment towers, hospital water systems, and industrial utility branches across Iraq. In multi-story buildings and municipal branch networks in Baghdad, Erbil, and Basra, excessive hydrostatic pressures exceeding 6 to 10 Bar cause water hammer, pipe joint leaks, fixture damage, and excessive water wastage. Indus direct-acting PRVs reduce high fluctuating inlet pressures to a steady, user-adjustable downstream pressure (typically 1.5 to 6.0 Bar).
The valve operates on a balanced direct-action principle: upstream pressure acts equally on opposing internal surfaces, ensuring that downstream delivery pressure remains constant regardless of major inlet pressure fluctuations. When downstream demand ceases, the valve closes bubble-tight (Rate A per ISO 5208), preventing downstream pressure creep. The regulating spring is manufactured from high-fatigue chrome-vanadium or stainless steel, isolated from the water flow inside a sealed spring bonnet. An integrated pressure gauge port allows direct connection of a glycerin pressure gauge for easy adjustment.
Available in dezincification-resistant (DZR) forged brass, bronze, or ductile iron bodies with threaded (BSP/NPT) or flanged (EN 1092-2) connections, the valve includes an integrated stainless steel mesh strainer that traps pipe scale and sand. Staged at our Erbil Heavy Yard, Baghdad Central Logistics Depot, and Basra Port Hub, Indus supplies direct-acting PRVs with calibration test certificates and full EN 10204 3.1 inspection documentation.
Direct-acting PRVs use a spring directly pushing against a diaphragm; they are compact, simple, and ideal for small to medium flow rates (DN15 to DN100) inside buildings. Pilot-operated PRVs use line hydraulic pressure and an external pilot circuit, designed for large municipal mains (DN50 to DN600) with massive flow variations.
Yes. Indus direct-acting PRVs feature balanced soft-seated cartridges that seal 100% bubble-tight under dead-end conditions, preventing pressure creep that bursts domestic water heaters and flexible hoses.
Yes. The bottom strainer bowl unscrews easily, allowing maintenance technicians to pull out and rinse the stainless steel mesh filter without disconnecting the valve body from the plumbing pipework.
