Grooved Drain Cap With Concentric Hole
- Size: DN15-DN300
- Hole diameter range: Ø6-50 mm
- Material: carbon steel/stainless steel/PVC
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Grooved Drain Cap with Concentric Hole, a derivative of the Grooved Drain Cap, features a concentric hole in the center of the closed end for both end sealing and directional drainage/venting. The Grooved Drain Cap with Concentric Hole is a derivative of the Grooved Drain Cap that combines an end seal with directional drainage/venting, and is suitable for use in grooved piping systems that require periodic draining of fluids or pressure equalization, such as fire protection, industrial drainage, and HVAC applications
Grooved Drain Cap With Concentric Hole
Core Features and Benefits
- Quick maintenance: reusable. Drainage operation can be accomplished by simply passing an external valve without removing the entire pipe cap, reducing maintenance costs.
- Suitable for temporary or permanent installations.
Directional Drainage: Drain fluids (e.g. condensate, sediment) that accumulate at low points in the pipe through concentric holes to prevent corrosion or ice blockage. Used in fire protection systems to drain residual water after testing to avoid the risk of freezing and cracking in winter. - Pressure equalization: releases localized gas in closed piping systems (e.g., gas blockages in HVAC circulation lines) to maintain fluid transfer stability. Combined with a pressure gauge interface, it supports system pressure monitoring and commissioning.
Typical application scenarios
- Industrial drainage system: low-point liquid discharge of chemical pipelines to prevent long-term retention of corrosive media. Pressure relief and residual liquid discharge before overhaul of oil and gas transportation pipelines.
- Municipal engineering: reserving underground rainwater pipe network inspection wells for drainage to facilitate emergency pumping.
- Fire-fighting and HVAC systems: Regular drainage at the end of the sprinkler network to avoid deterioration of water quality or clogging of nozzles. Directional discharge of central air-conditioning condensate lines to minimize microbial growth.