PVC-KG Double Socket Elbow 87° SN8

PVC-KG double socket elbow SN8 SDR 34 is an injection-molded unplasticized polyvinyl chloride fitting engineered for precise directional changes in non-pressure underground gravity sewer networks and stormwater drainage systems installed outside building structures. Manufactured with an SDR 34 wall geometry delivering a nominal ring stiffness of 8 kN/m2 (SN8), the fitting exhibits outstanding structural resistance against static overburden and dynamic surface traffic loads, making it suitable for deep trench installations down to 6 meters under medium and heavy traffic corridors. Both connection ends feature integral profiled sockets pre-fitted with high-durability elastomeric EPDM lip gaskets that provide a watertight push-fit seal, accommodating minor ground movements, reversible soil settlement, and thermal axial fluctuations without loss of sealing integrity. Designed in standard directional diversion configurations spanning 15 degrees, 30 degrees, 45 degrees, and 87 degrees across nominal diameters from 110 mm to 315 mm, the smooth interior hydraulic profile features an absolute surface roughness coefficient below 0.01 mm, drastically lowering friction losses, preventing particulate sedimentation, and facilitating laminar sewage discharge. The chemically inert PVC-KG material compound offers superior resilience against aggressive wastewater matrices, dissolved mineral salts, dilute acids, and caustic solutions spanning a pH range from 2 to 12, sustaining continuous operating fluid temperatures up to 60 degrees in smaller diameters and 40 degrees in larger infrastructure lines. Produced in standard municipal orange RAL 8023, the robust socket geometry allows rapid on-site assembly when coupled with suitable pipe lubricant, ensuring a minimum 50-year service life in municipal, industrial, and residential civil drainage networks.