Fiberglass Reinforced Plastic (FRP) Manways

FRP manways provide convenient top and side access to fiberglass reinforced plastic tanks. These hand-laid fiberglass accessways are manufactured to exacting requirements, producing a void-free laminate with a resin-rich liner.

Features & Construction

Hand-laid fiberglass reinforced plastic construction.
Designed for top and side access to fiberglass tanks.
Void-free laminate with a resin-rich liner.
Continuous reinforcement throughout the flange face and hub.
Bolt holes are drilled, spot-faced, and resin-coated.
150-lb. drilling pattern across all pressure ratings.

Available Specifications

Available configurations vary by resin system, inside diameter, wall thickness, and flange thickness. Refer to the table below for the manufacturer's listed specifications.

Resin System	Inside Diameter	Outside Diameter	Wall Thickness	Flange Thickness
Hetron 922 - MEKP	30 in.	38-3/4 in.	1/2 in.	1-1/2 in.
Hetron 922 - MEKP	24 in.	32-1/2 in.	3/8 in.	1-1/4 in.
Hetron 922 - BPO-DMA	24 in.	32-1/2 in.	3/8 in.	1-1/4 in.
Derakane 411 - MEKP	24 in.	32-1/2 in.	3/8 in.	1-1/4 in.
Derakane 470 - MEKP	24 in.	32-1/2 in.	3/8 in.	1-1/4 in.
Hetron 922 - MEKP	24 in.	32-1/2 in.	1/4 in.	1-1/8 in.
Hetron 922 - MEKP	24 in.	32-1/2 in.	3/8 in.	3/4 in.
Hetron 922 - BPO-DMA	24 in.	32-1/2 in.	3/8 in.	3/4 in.
Hetron 922 - MEKP	24 in.	32-1/2 in.	1/4 in.	3/8 in.
Hetron 922 - BPO-DMA	24 in.	32-1/2 in.	1/4 in.	3/8 in.
Derakane 411 - MEKP	24 in.	32-1/2 in.	1/4 in.	3/8 in.
Derakane 470 - MEKP	24 in.	32-1/2 in.	1/4 in.	3/8 in.

Note: Specifications are based on information supplied by the manufacturer.