Cross, Slip x Slip x Slip x Slip PVC Schedule 40 1" (420-010)

This 1" Schedule 40 PVC Cross Fitting provides four-way inline branching in solvent-cement PVC piping systems, allowing a single pipe run to split or intersect in two directions simultaneously from a common center body. Constructed in white Schedule 40 PVC, it offers reliable performance in commercial plumbing, irrigation, fire suppression, and light industrial applications where a compact, corrosion-resistant four-port junction is required at one of the most widely specified pipe diameters in PVC distribution systems.

All four ports — both inline run ends and both perpendicular branch outlets — accept 1" PVC pipe for permanent solvent-cement bonds, creating a rigid, leak-free assembly at each joint. The cross configuration is particularly well-suited for grid-layout irrigation headers, fire suppression branch line intersections, distribution manifolds, and any system layout where two perpendicular pipe runs must intersect at a single fitting rather than being constructed from multiple tees and nipples. At 1", this cross fitting is the highest-demand entry in the 420 series — appearing throughout residential and commercial irrigation systems, light commercial fire suppression grids, and process water distribution assemblies where 1" pipe serves as the primary branch header or lateral distribution diameter. Consolidating the four-way junction into a single fitting reduces overall fitting count, shortens assembly time, and minimizes potential leak points compared to a multi-tee assembly at the same intersection.

Rated to approximately 450 psi at 73°F, this cross fitting handles the pressure demands of standard commercial and light industrial water distribution service. Its PVC composition provides excellent resistance to corrosion, scale buildup, chlorinated water, and a broad range of chemical exposures, making it a long-lasting alternative to metal fittings in moisture-prone or chemically active environments. NSF/ANSI 61 listing confirms suitability for potable water contact.

Apply solvent cement to both the pipe end and fitting socket per ASTM D2564 procedures at each port, using a primer appropriate for the pipe and fitting schedule. Insert pipe fully into each socket and maintain a quarter-turn during assembly for even cement distribution across the joint surface. Work through all four joints systematically and allow adequate cure time before pressurizing the system. Derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Creates four-way junctions in grid-layout irrigation headers, lateral distribution manifolds, and zone supply lines in agricultural and municipal systems where 1" pipe is the standard branch header diameter and four-way intersections replace multi-tee assemblies at grid corner and mid-run intersection points
• Fire Suppression Systems — Branches 1" sprinkler supply lines at four-way grid intersections in light-hazard Schedule 40 PVC fire suppression installations where 1" is the dominant branch header diameter and grid-layout systems require frequent four-way junction fittings throughout the distribution network
• Commercial Plumbing — Distributes water to multiple branch lines from a single inline location in pressurized 1" supply systems, reducing fitting count versus multi-tee assemblies at four-way junction points in commercial building water distribution networks where 1" pipe serves dedicated service and branch supply runs
• Industrial Process Piping — Serves as a compact four-port junction in 1" process water, cooling water, and rinse station distribution lines in light-duty manufacturing and water treatment facility installations where grid-layout or manifold-style distribution requires four-way branching at a common intermediate service diameter
• Water Treatment & Aquaculture — Used in recirculating system manifolds, filter feed headers, and tank distribution grids at 1" line sizes where corrosion resistance, NSF/ANSI 61 compliance, and a compact four-way junction are required at distribution intersection points throughout the all-socket assembly
• HVAC & Mechanical Systems — Branches 1" chilled water or treated water distribution lines at four-way intersections in cooling tower and mechanical system installations where Schedule 40 PVC pressure ratings are appropriate and grid-layout distribution requires four-way junction fittings at regular intervals along the 1" distribution network