CATEGORY LINE #11 5 Master B2B Products Division 01: Water & Wastewater

Non-Return Check Valves

Silent swing and tilting disc non-return check valves manufactured to BS EN 12334 standards with ductile iron body construction, stainless steel hinge pins, and resilient EPDM-to-bronze seating. Designed with short closure strokes to eliminate destructive water hammer during sudden pump trip events across PN16 to PN40 ratings. Installed downstream of high-lift vertical turbine and end-suction municipal water supply pumps.

Category Engineering Takeaways

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Portfolio Scope: Category portfolio comprises 5 active commercial lines (Governing Standards: EN 1074-3 / EN 12334 / BS 5153 / ISO 5208).
Standards & Authorizations: ISO 2531 / EN 545 - Ductile Iron Pipes & Fittings for Pressurized Potable Water Transmission (DN80–DN2600, C25–C100, Class K9/K12) | Ministry of Construction, Housing, Municipalities and Public Works (وزارة الإعمار والإسكان والبلديات والأشغال العامة)
Logistics & Dispatch: Staged inventory and multi-item turnkey dispatch supported across: Baghdad Central Logistics Depot (Abu Ghraib / Camp Sarah Industrial District, Baghdad); Erbil Heavy Infrastructure Staging Yard (Makhmur Road / Gwer Industrial Corridor, Erbil); Basra Port Gateway & Free Zone Terminal (Khor Al-Zubair & Umm Qasr Commercial Free Zone, Basra)

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Master B2B Product Specifications in Non-Return Check Valves

Review complete operational envelopes, engineering standards, and pre-staged inventory models ready for procurement across Iraq.

IND-PRD-000044 Active Staging Line

Resilient Swing Check Valves with Lever & Counterweight (DN50–DN1000, PN10 / PN16 / PN25, EN 1074-3)

                                ⚡ DN50–DN1000, PN10 / PN16 / PN25, EN 1074-3                            

✔ External lever and counterweight allowing field adjustment of disc closure dynamics.

✔ Ductile iron body and disc (EN-GJS-500-7) compliant with EN 1074-3 and EN 12334.

✔ Ductile iron disc fully encapsulated in EPDM or NBR elastomer delivering bubble-tight shutoff.

Technical Datasheet →

IND-PRD-000045 Active Staging Line

Non-Slam Nozzle Silent Check Valves (DN100–DN1200, PN16 / PN25 / PN40, EN 12334)

                                ⚡ DN100–DN1200, PN16 / PN25 / PN40, EN 12334                            

✔ Ultra-fast spring-assisted dynamic closure within milliseconds, completely eliminating valve slam.

✔ Streamlined aerodynamic annular nozzle waterway providing high flow capacity and low head loss.

✔ Heavy ductile iron body (EN-GJS-500-7) or WCB cast steel compliant with EN 12334 and ASME B16.34.

Technical Datasheet →

IND-PRD-000087 Active Staging Line

Dual Plate Wafer Check Valves (DN50–DN1200, PN16 / PN25, API 594 / EN 12334)

                                ⚡ DN50–DN1200, PN16 / PN25, API 594 / EN 12334                            

✔ Compact wafer design reducing valve weight by 80% and saving critical plant room space.

✔ Spring-loaded dual plates providing dynamic non-slam closure before flow reversal.

✔ Full compliance with API 594 and EN 12334 non-return check valve qualification standards.

Technical Datasheet →

IND-PRD-000088 Active Staging Line

Ball Check Valves for Sewage & Sludge (DN50–DN600, NBR Coated Steel Ball, PN10 / PN16, EN 12050)

                                ⚡ DN50–DN600, NBR Coated Steel Ball, PN10 / PN16, EN 12050                            

✔ Unobstructed full-bore flow path with ball rolling completely out of the fluid stream.

✔ 100% non-clogging performance in raw unscreened municipal sewage and thick primary sludge.

✔ Sinking metallic core ball fully encapsulated in vulcanized oil-resistant NBR elastomer.

Technical Datasheet →

IND-PRD-000089 Active Staging Line

Tilting Disc Check Valves with Hydraulic Dashpot Damper (DN200–DN1400, PN16 / PN25, EN 12334)

                                ⚡ DN200–DN1400, PN16 / PN25, EN 12334                            

✔ Inclined seat geometry (55°–70°) reducing disc travel distance and accelerating closure.

✔ External hydraulic oil dashpot cylinder cushioning the final 10% of stroke to prevent slam.

✔ Aerofoil disc profile minimizing flow turbulence and reducing pumping head losses.

Technical Datasheet →

Non-Return Check Valves

Master B2B Product Specifications in Non-Return Check Valves

Resilient Swing Check Valves with Lever & Counterweight (DN50–DN1000, PN10 / PN16 / PN25, EN 1074-3)

Non-Slam Nozzle Silent Check Valves (DN100–DN1200, PN16 / PN25 / PN40, EN 12334)

Dual Plate Wafer Check Valves (DN50–DN1200, PN16 / PN25, API 594 / EN 12334)

Ball Check Valves for Sewage & Sludge (DN50–DN600, NBR Coated Steel Ball, PN10 / PN16, EN 12050)

Tilting Disc Check Valves with Hydraulic Dashpot Damper (DN200–DN1400, PN16 / PN25, EN 12334)

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