F-10 Flap Gates
Specifications
- Size Range
6" - 60" - Seating Head
Up to 10 feet - Seat Angle
5 degrees for 6" - 24"; 2.5 degrees for 30" and larger - Frame & Cover Materials
Cast Iron ASTM A-126 Class B - Mounting
Wall Mount, Spigot Back, or Taper Setting Collar - Seat Materials
Cast Iron ASTM A-126 Class B - Flange Drilling
Not applicable - Hinge Bushings
Seamless 85 Red Brass ASTM B-43; ALLOY 230 - Assembly Hardware
Stainless Steel ASTM F-593 & F-594 Type 316 - Hinge Bolt & Hinge Link
Link: Stainless Steel ASTM A-276, Type 316; Bolt: Stainless Steel ASTM F-593 & F-594 Type 316
Features & Benefits
Waterman F-10 drainage gates are designed for use with concrete pipe, head walls, and corrugated metal pipe with up to ten foot seating head. The frame and cover are constructed of heavy-duty cast iron. Steel angle links are used to absorb unbalanced side shock, and are balance-pivoted on bronze bushings. The quality design and construction assures years of maintenance-free operation. Waterman F-10 drainage gates are currently in extensive use on federal, state, and municipal projects for drainage, waste line, sewage treatment, flood control, and irrigation systems.
KEY FEATURES
1. Heavy-duty cast iron frame and cover
2. Durable hinge system for long-term operation
3. Reliable metal-to-metal sealing for gravity services
4. Optimized 5° / 2.5° seat angle geometry
WATERMAN EXCLUSIVES
• Specially-engineered seat design eliminates the need for special pipe cuts or sections
• Innovative cover design features built-in “Safety Bar” that prevents sticking and jamming
• Free outflow with practical sealing against back flow
• Maintenance-free operation
OPTIONS
• Flatback or spigotback configuration
• Taper setting collars (for mounting to concrete pipe) or other special pipe-mounting adapters
Not recommended for pump discharge or other applications where violent slamming may occur.

