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SO Flange
SDFL
Engineered for rapid installation and corrosion resilience, this EN 1092-1 DN15 PN10 stainless steel slip-on flange excels in low-pressure systems across food, beverage, and pharmaceutical sectors. Its slip-on design (Type 11) allows quick alignment with metric pipes, while F304 stainless steel (1.4301)—a material with 18% chromium and 8% nickel—delivers long-term durability in mildly corrosive environments, meeting strict hygiene standards.
Parameter | Details |
Standard | EN 1092-1 Type 11 (Slip-On) |
Material | Stainless steel F304 (1.4301, 18Cr-8Ni, 515 MPa minimum tensile strength) |
Pressure Rating | PN10 (1.0 MPa, ideal for low-pressure hygienic systems) |
Dimensions | OD: 95mm, Bolt Circle: 65mm, Thickness: 12mm, Pipe ID: 22.8mm (for 21.3mm OD pipe) |
Bolt Holes | 4x M10 (pitch circle diameter 65mm, M10x1.5 thread) |
Seal Type | Raised Face (RF, 1.6mm height, Ra ≤ 1.6μm finish) |
Temperature Range | -20°C to 400°C (compatible with CIP cleaning at 80–95°C) |
Tool-Free Alignment: The slip-on design fits ISO 336 DN15 pipes (OD 21.3mm) with 1.5mm radial clearance, cutting installation time by 40% compared to weld-neck alternatives—critical for time-sensitive hygiene system startups.
Passive Corrosion Resistance: F304’s chromium oxide layer resists pH 4–8 environments, including dairy acids (lactic acid, pH 4.5) and brewery cleaning agents (caustic soda, pH 12), preventing pitting for 15+ years.
Hygienic Surface Finish: A Ra ≤ 1.6μm polished surface eliminates bacterial harborage points, meeting FDA 21 CFR 177.2600 and EU 10/2011 standards for food contact.
CE-Marked Compliance: Certified per EN 1092-1 and PED 2014/68/EU (Module B+D), ensuring safety in pressure equipment for pharmaceutical water systems.
Food Processing: Connects CIP (Clean-in-Place) spray lines in dairy plants, withstanding 85°C nitric acid cleaning cycles (1–2% concentration) without corrosion.
Pharmaceuticals: Integrates into sterile water for injection (WFI) loops, with optional electropolishing (Ra ≤ 0.8μm) to meet USP <85> particulate matter standards.
Chemical Dosing: Manages mild alkaline solutions (e.g., 5% sodium hydroxide) in wastewater pH adjustment systems, avoiding metal leaching into process streams.
Q: Does this flange require welding?
A: Yes. Perform single-sided fillet welds (3mm leg length) on both inner and outer edges using ER308L filler metal, per EN 1011-3 for stainless steel hygiene welding.
Q: Can it be used with ASME pipes?
A: Yes. Pair with DN15 to NPS 1/2" reducers (EN 1092-1 to ASME B16.5) featuring 21.3mm to 21.3mm OD transitions for mixed-standard systems.
Q: What torque should be applied to the bolts?
A: Torque M10 A2-70 stainless steel bolts to 35–40 N·m using a calibrated torque wrench, following a cross-tightening sequence to ensure even gasket compression.
Engineered for rapid installation and corrosion resilience, this EN 1092-1 DN15 PN10 stainless steel slip-on flange excels in low-pressure systems across food, beverage, and pharmaceutical sectors. Its slip-on design (Type 11) allows quick alignment with metric pipes, while F304 stainless steel (1.4301)—a material with 18% chromium and 8% nickel—delivers long-term durability in mildly corrosive environments, meeting strict hygiene standards.
Parameter | Details |
Standard | EN 1092-1 Type 11 (Slip-On) |
Material | Stainless steel F304 (1.4301, 18Cr-8Ni, 515 MPa minimum tensile strength) |
Pressure Rating | PN10 (1.0 MPa, ideal for low-pressure hygienic systems) |
Dimensions | OD: 95mm, Bolt Circle: 65mm, Thickness: 12mm, Pipe ID: 22.8mm (for 21.3mm OD pipe) |
Bolt Holes | 4x M10 (pitch circle diameter 65mm, M10x1.5 thread) |
Seal Type | Raised Face (RF, 1.6mm height, Ra ≤ 1.6μm finish) |
Temperature Range | -20°C to 400°C (compatible with CIP cleaning at 80–95°C) |
Tool-Free Alignment: The slip-on design fits ISO 336 DN15 pipes (OD 21.3mm) with 1.5mm radial clearance, cutting installation time by 40% compared to weld-neck alternatives—critical for time-sensitive hygiene system startups.
Passive Corrosion Resistance: F304’s chromium oxide layer resists pH 4–8 environments, including dairy acids (lactic acid, pH 4.5) and brewery cleaning agents (caustic soda, pH 12), preventing pitting for 15+ years.
Hygienic Surface Finish: A Ra ≤ 1.6μm polished surface eliminates bacterial harborage points, meeting FDA 21 CFR 177.2600 and EU 10/2011 standards for food contact.
CE-Marked Compliance: Certified per EN 1092-1 and PED 2014/68/EU (Module B+D), ensuring safety in pressure equipment for pharmaceutical water systems.
Food Processing: Connects CIP (Clean-in-Place) spray lines in dairy plants, withstanding 85°C nitric acid cleaning cycles (1–2% concentration) without corrosion.
Pharmaceuticals: Integrates into sterile water for injection (WFI) loops, with optional electropolishing (Ra ≤ 0.8μm) to meet USP <85> particulate matter standards.
Chemical Dosing: Manages mild alkaline solutions (e.g., 5% sodium hydroxide) in wastewater pH adjustment systems, avoiding metal leaching into process streams.
Q: Does this flange require welding?
A: Yes. Perform single-sided fillet welds (3mm leg length) on both inner and outer edges using ER308L filler metal, per EN 1011-3 for stainless steel hygiene welding.
Q: Can it be used with ASME pipes?
A: Yes. Pair with DN15 to NPS 1/2" reducers (EN 1092-1 to ASME B16.5) featuring 21.3mm to 21.3mm OD transitions for mixed-standard systems.
Q: What torque should be applied to the bolts?
A: Torque M10 A2-70 stainless steel bolts to 35–40 N·m using a calibrated torque wrench, following a cross-tightening sequence to ensure even gasket compression.
