Wet Drop Nipple Adjustable Figure #150 | Reliable Merit

The Reliable Merit Figure #150 Adjustable Wet Drop Nipple installs between the branch line and the sprinkler head in wet pipe fire sprinkler systems. It provides precise vertical adjustment to accommodate varying ceiling heights and construction tolerances without requiring custom pipe cuts. This fitting supports compliance with NFPA 13 installation requirements by ensuring exact sprinkler head alignment for flush or recessed finishes. It maintains optimal hydraulic performance and supports high-pressure water flow, delivering dependable life safety protection for commercial and residential facilities.

Key Features & Construction

• Adjustable Length Design: Allows technicians to fine-tune vertical alignment and head placement on-site, reducing labor time.
• Corrosion-Resistant Build: Manufactured from high-strength, durable materials to withstand demanding fire protection environments and prevent mechanical wear.
• Leak-Free Performance: Engineered for secure, reliable connections within standard wet pipe assemblies to maintain valve integrity.
• System Versatility: Compatible with multiple sprinkler models for both new construction builds and critical retrofit projects.

Technical Specifications & Compliance Table

Verify all local Authority Having Jurisdiction (AHJ) requirements before starting your installation. Consult the Reliable product catalog and list price book to confirm exact part numbers, technical data sheets, and system requirements.

Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)