Construction

Distribution Ring

Distribution Ring for Construction – Technical Specification

Attributes

Core Processing Technology: CNC plate rolling forming combined with welding, followed by finishing operations. Equipment includes CNC plate rolling machines and automatic CO₂ gas-shielded welding machines. Processing parameters: rolling spindle speed 25–45 r/min, rolling pressure 6–10 MPa (Q235B properties); CO₂ gas-shielded welding, welding current 100–140A, welding speed 6–9 mm/s, shielding gas CO₂+Ar (volume ratio 8:2, purity ≥99.99%), wall thickness 1.5mm with weld penetration ≥1.2mm.
Raw Material Pretreatment: Q235B carbon steel plates are degreased in alkali solution (50–60°C, 5–8% NaOH, 10–15min), neutralized and washed, dried at 70–90°C for 12–18 min, then flattened (flatness deviation ≤0.2 mm/m). Surface free of oil, rust, or scratches.
CNC Process Control: CNC plate rolling machine programmed with G-code for rolling path, real-time monitoring of diameter and height (sampling 10 times/sec), closed-loop control ensures Ø464mm ±0.4mm, H158mm ±0.3mm. End faces finished by CNC milling, perpendicularity error ≤0.1 mm/m.
Post-Processing: Mechanical deburring (spindle speed 3000 r/min, grinding wheel 1200#) of weld seams and edges, air blow cleaning, dimensional recheck, weld quality inspection.

Standards Compliance: ISO9001:2015 quality management system and GB/T 700-2006 carbon steel standards. Full coverage of raw material, processing, and finished product.
Raw Material Inspection: Spectrometer analysis (element deviation ≤±0.05%; C≤0.22%, Mn≤1.4%, S≤0.050%, P≤0.045%), tensile testing (yield ≥235MPa, tensile 370–500MPa), surface inspection via 20× magnifier—no cracks, inclusions, or dents.
Process QC:
1. Rolling inspection: template fit ≥97%
2. Weld inspection: ultrasonic testing (UT), compliance with JB/T 4730.3-2005 II level, no lack of fusion, porosity, or slag inclusion
3. Dimensional inspection: CMM (±0.005mm) for Ø464mm, H158mm, 1.5mm thickness
4. Edge inspection: burr-free, chamfer radius R≥1.2mm
Finished Product Inspection: Sampling per GB/T 2828.1-2012, AQL 2.5; checks include dimension, material, surface, appearance, and assembly fit; each product includes traceability code (raw material batch, equipment, inspection personnel).

Production Capacity: 4 CNC plate rolling machines, 5 CO₂ welding machines, 2 CNC milling machines; daily output 80 pcs per line (2 shifts, 8h/shift), max monthly output 4800 pcs; multi-line parallel production.
Lead Time: Small orders (10–50 pcs) 4–7 working days; large orders (≥100 pcs) 8–12 working days; urgent orders 2–4 working days (production schedule adjustment needed).
Packaging & Delivery: Anti-rust paper + pearl cotton + cardboard + wooden pallet, 60 pcs per pallet; domestic logistics door-to-door (Tier 1–2 cities 2–3 days, Tier 3–4/remote 3–6 days); supports on-site delivery with 3-day advance confirmation.
Customization: Sizes Ø200–800mm, H50–300mm; materials Q235A, Q355B, etc.; feasibility review 2 working days.

Core Applications: Used in building plumbing, fire sprinkler, and HVAC water systems as a critical fluid distribution component, installed at pipe branches or equipment inlets/outlets to ensure even distribution and system stability.
Operating Conditions: Temperature -20°C to 120°C (Q235B); compatible fluids: tap water, fire water, HVAC circulating water; applicable buildings: commercial complexes, offices, residential, industrial plants, hospitals, schools.
Interface Requirements: Interface must match Ø464mm × H158mm, supports customized connection per building pipe standards (diameter, flange); customer to provide dimensions and installation info.

Extended Scenarios: Heating systems, industrial cooling water systems, rainwater collection systems, municipal fluid transport.
Extended Application Description:
- Heating: distributes hot water evenly
- Industrial cooling: water distribution/collection component for industrial equipment
- Rainwater collection: water diversion and transport
- Municipal facilities: branch distribution for large fluid flow

Warranty: 18 months from acceptance; free repair or replacement for defects in size, material, weld, or assembly; supplier covers logistics and on-site repair costs.
Technical Support: Pre-sales selection consulting, installation manuals, dimensional drawings, phone/video guidance, on-site installation briefing; maintenance & anti-rust technical support during and after warranty.
Feedback Handling: Online, phone, email support within 24h; solution provided in 1–3 working days; dedicated follow-up for quality issues.
Post-Warranty Service: Paid repair, replacement, refurbishment (rust removal, weld repair); long-term maintenance contracts with periodic inspection (1–2 times/year).