HDPE Butt Fusion S-Trap with Cleanout for Siphonic Drainage

A specialized S-trap fitting with a threaded cleanout port at the bottom or side, combining vertical drainage, water seal and convenient maintenance.

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Category: HDPE Siphonic Fittings

HDPE Siphonic Fittings

Product Overview

A specialized S-trap fitting with a threaded cleanout port at the bottom or side, combining vertical drainage, water seal and convenient maintenance. This HDPE S-trap with cleanout drops vertically into the stack while holding a 50 mm water seal, and its threaded port lets technicians clear blockages without cutting pipe. Built to ISO 8770 and EN 1519-1 for DN 50 to 315 mm drainage systems.

Quick Information

Diameter Range: DN 50 - 315 mm
Applicable Standards: ISO 8770, EN 1519-1
Stock: In stock

Specification Table

	Article	d1/d2	K	k1	k2	k3	k4	e	L
S Trap with access	S Sewage Trap	50	155.0	3.0				4.0
	S Sewage Trap	75	184.0	3.0				4.0
	S Sewage Trap	110	248.0	5.0				5.5

Key Features

Vertical Outlet Design: The HDPE S-trap with cleanout turns flow downward into the stack, suiting floor-drain-to-stack connections without extra elbows.
Reliable Water Seal: This siphonic drainage trap maintains a deep 50 mm water seal that blocks sewer gas and odors.
Threaded Cleanout Port: The HDPE S-trap with cleanout has a threaded bottom or side port for rodding and flushing without cutting pipe.
PE100 Material Strength: This siphonic drainage trap is molded from PE100 for high impact resistance and decades of service.
Leak-Free Fusion Joints: The HDPE S-trap with cleanout welds to HDPE pipe by butt or socket fusion, forming a homogeneous watertight unit.
Full Size Range: This siphonic drainage trap covers DN 50 to 315 mm for floor drains and vertical stack connections.

Production

Raw Material

Every HDPE S-trap with cleanout is molded from certified virgin PE100 resin with carbon black UV stabilizer, batch-tested for melt flow rate and density.

Molding Process

Each siphonic drainage trap is injection molded with precision cores that form the S-bend, seal weir and threaded cleanout seat in one cycle, holding dimensional tolerance within 0.1 mm.

Quality Control

Batches of HDPE S-traps with cleanout are sampled for water seal depth verification, hydrostatic pressure testing and fusion joint integrity per ISO 8770 and EN 1519-1.

Applications

Floor drains discharging downward into stacks use the HDPE S-trap with cleanout for compact vertical connections.
Siphonic drainage systems rely on this siphonic drainage trap where collectors turn down into vertical risers.
Commercial kitchens and laundries install the HDPE S-trap with cleanout for grease-resistant, roddable drainage.
Public facilities choose this siphonic drainage trap for odor control with fast maintenance access.