Indus Industrial Group supplies heavy-duty DIN 3352 F4 (EN 558 Series 14) Short Pattern Resilient Seated Gate Valves engineered across nominal diameters from DN50 to DN600 in pressure classes PN10, PN16, and PN25 according to EN 1074-1/2 and EN 1171. Constructed with high-strength ductile iron bodies (EN-GJS-500-7) and non-rising stainless steel stems, these valves feature fully vulcanized EPDM encapsulated ductile iron wedges that achieve 100% bubble-tight bi-directional shutoff without internal seat pockets where sand or grit can lodge. Finished with electrostatic fusion-bonded epoxy (min 250 µm, WRAS drinking water approved), they are designed for municipal water distribution grids, valve chambers, and pump stations across Iraq.
| Pricing Verification | Commercial Quote on Demand (RFQ) |
| Governing Standards | EN 1074-1/2 / EN 1171 / DIN 3352 Part 4 / ISO 7259 |
| Face-to-Face Standard | EN 558-1 Series 14 / DIN 3202 F4 (Short Pattern) |
| Nominal Diameter Range | DN50 to DN600 (Metric Flanged) |
| Pressure Ratings | PN10, PN16, PN25 (Bar) |
| Body & Bonnet Material | Ductile Iron EN-GJS-500-7 (min 420 MPa tensile strength) |
| Wedge Material | Ductile Iron fully vulcanized in EPDM Rubber (WRAS certified) |
| Stem Material | Stainless Steel AISI 420 / AISI 304 / AISI 316 (Non-Rising) |
| Stem Nut | High-Tensile Forged Brass / Aluminum Bronze |
| Flange Standard | EN 1092-2 / ISO 7005-2 (PN10 / PN16 / PN25 Drilled) |
| Leakage Rate | Rate A (Zero Allowable Leakage per ISO 5208) |
| Sector & Division | Water & Wastewater (Div 01) |
| Parent Category | Resilient Gate Valves |
Municipal potable drinking water distribution networks, pump station isolation headers, water treatment plant filter manifolds, reservoir intake and outlet chambers, and fire protection isolation lines across Baghdad, Erbil, Basra, Najaf, Karbala, and Kirkuk.
DIN 3352 F4 Short Pattern Resilient Seated Gate Valves represent the definitive municipal isolation valve standard across Federal Iraq and the Kurdistan Region. Governed by EN 1074-1/2, EN 1171, and ISO 7259 standards, these valves eliminate the fatal failure mode of traditional metal-seated gate valves: sediment and sand deposition in bottom body recesses that prevents complete valve closure. The F4 valve body features a smooth, unobstructed straight-through bore (full bore) without any bottom pocket. When closed, the precision ductile iron wedge, completely encapsulated in high-grade EPDM elastomer with vulcanized bonding per ISO 815, compresses seamlessly against the smooth interior floor of the body, guaranteeing zero-leakage (Rate A per ISO 5208) bi-directional shutoff.
The mechanical drivetrain features a cold-rolled, high-strength stainless steel stem (AISI 420 / 316) with rolled Acme trapezoidal threads, delivering low operational closing torque and exceptional cycle life. Multiple O-ring stem seals located inside a separate sealing collar isolate the internal pipeline pressure from the atmospheric environment, allowing stem seal replacement under full working pressure without de-energizing the main. The short face-to-face dimension (EN 558-1 Series 14) saves valuable space inside congested urban valve chambers in Baghdad, Erbil, and Basra.
Corrosion protection is achieved through electrostatic blue fusion-bonded epoxy (FBE) coating (minimum 250 microns, tested for zero holidays at 1.5 kV) inside and outside, ensuring total immunity to subsoil graphitization and highly aggressive groundwater. Staged across our Erbil Heavy Yard, Baghdad Logistics Hub, and Basra Port Corridor, Indus supplies F4 gate valves with handwheels, electric actuator top flanges (ISO 5211), and full EN 10204 3.1 inspection certification.
Traditional metal-seated gate valves have a recess at the bottom of the body where sand and silt accumulate, preventing the metal gate from fully closing. The DIN 3352 F4 resilient seated gate valve has a completely flat, smooth bore with no bottom recess; the flexible rubber wedge seals directly against the smooth floor, providing bubble-tight shutoff even in sediment-heavy Iraqi river water.
Yes. The valve incorporates a back-seat sealing mechanism on the stem shoulder. When the valve is fully open, the back-seat seals the upper stuffing box, allowing technicians to replace the stem O-rings safely under full working pressure without shutting down the pipeline.
Indus supplies F4 gate valves with cast iron handwheels, T-key operating caps for underground spindles, bevel/spur reduction gearboxes for large diameters (DN350+), and ISO 5211 top flanges for electric actuator mounting across all Iraqi governorates.
