Series 504 HDPE Caps with Female NPT

Ensure secure, long-lasting connections between HDPE piping and threaded systems with the Series 504 HDPE Caps and Series 799 Poly-Cam Female Header Fittings. Designed for high-pressure applications, these corrosion-resistant fittings feature a barbed mechanical design and hydraulically compressed reinforcement to deliver unmatched reliability. Sizes range from 0.5" to 2" NPT, meeting ANSI/ASME B1.20.1 standards.

Key Features & Benefits

• Leak-Proof Design: Multi-level barbs create a pressure-activated seal—tightening under stress to prevent leaks even at zero internal pressure.
• 50-Year Performance: Built to handle HDPE pipe pressure ratings with a 2:1 safety factor at 73.4°F, ensuring decades of service.
• Certified Quality: Exceeds ASTM 1598, 1599, and ARRA requirements. Materials include 304/316 Stainless Steel (ASTM A249/A269) and lead-free C954 Bronze.
• Easy Installation: Compatible with standard HDPE butt fusion techniques. Includes compression ring reinforcement for added stability.

Technical Specifications

• HDPE Caps (Series 504): Sizes 0.5"–2" NPT. Meets ASTM D3350 (PE3408/PE4710), F714, and D3035. Density ≥0.955 g/cm³, tensile strength 3,200–3,500 psi.
• Header Fittings (Series 799): Barbed mechanical design fused to HDPE end caps. Includes corrosion-resistant compression rings.

Installation Guidelines

• Use smooth-jawed or Poly-Cam wrenches only—avoid pipe wrenches to prevent ovality.
• Apply pipe joint sealant/Teflon tape on threads.
• Pressure-test connections before backfilling. Compact soil carefully to avoid shifts.
• Follow Plastic Pipe Institute’s butt fusion welding procedures for field welds.

Material & Compliance

• Fittings: 304/316 Stainless Steel or C954 Aluminum Bronze.
• HDPE Pipe: ASTM-certified with ≥5,000 hrs ESCR (zero failures) and melt index ≤0.15 g/10 min.
• Certifications: Available upon request.

Warranty: 1 year from date of installation completion.

Upgrade your piping system with Poly-Cam’s engineered solutions—built for durability, safety, and compliance. Contact us for technical specs or certifications.

Order Guide