렉스틸 - Metal Valve Chamber - Product excellence

Product comparison

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Category	Metal Valve Chamber	Cast-in-place concrete Valve Chamber	FRP Valve Chamber
Shape
Manufacturing method	Factory production	Cast-in-place	Factory production + on-site top and bottom attachment
Material	Steel SS275 (SS400)	Concrete	Glassfiber (FRP)
Coating	Epoxy powder coating	on-site waterproofing	Gel coating
Connector	KP mechanical method or flange method	None	Connecting pipes and other separate products
Eco-friendly	Recyclable and reusable after endurance period expired	Recyclable and reusable after endurance period expired	Recyclable and reusable after endurance period expired
Procurement method	Unit price contracts for third parties with Public Procurement Service	None	Unit price contracts for third parties with Public Procurement Service
Construction period	Easy to reduce the on-site construction period as it is manufactured in the factory and delivered	Difficult to reduce the on-site construction period as it requires a period of	Top and bottom attachment process required on site Takes about 3 to 4 days
Durability	Excellent durability by reinforcing structure with lattice-pattern	Risk of breakage Average	Risk of breakage Average
Pros and Cons	Winter construction possible Reduced factory production period Effective in preventing safety accidents Possible to install a manhole with the height adjustment device so that the manhole and the road surface can be horizontal No shaking or separation after construction Height-adjustable for road resurfacing Blocks the inflow of water from the outside through the manhole cover	Excellent adaptability to changes in site conditions Can be installed regardless of piping location Lots of construction achievements Long-term construction period required due to on-site production Difficult to construct in a narrow working space Difficulty in winter and underwater construction Quality varies greatly depending on the skill level of workers Risk of safety accidents and civil complaints due to long-term traffic problems Lowest installation cost, incidental expenses	Light weight, easy to load and manage on site FRP made with anti-corrosive material. Waterproof, no anti-corrosion process required Possible to construct in a narrow working space Low risk of civil complaints and safety accidents Low external pressure strength due to single wall structure Hardening time required for FRP joining leading to construction delay Quality varies greatly depending on the skill level of workers Possible winter construction but underwater construction not allowed Slightly expensive compared to other products