Does unit require external pressure reducer for eye wash?

The required water pressure for this eyewash station is within 0.2-0.4Mpa. If the water pressure exceed 0.4MPa, then a external pressure reducer is required, to make sure the water pressure is in the range of 0.2-0.4Mpa.

What size concrete bit do I need to secure the bolt in the floor?

The size of concrete bit need to be larger than the size of the hole on the fixed base

1 1/4 water line not available. Will this unit work with a 1/2 water line with 80 psi ???

The water line size is easy to solve, just buy a proper 1-2" to 1-1/4" adapters can be addressed. The only problem is that your water pressure may not reach the required minimum water pressure of 0.2MPa. Because 80PSI=0.55MPa, when the water pipe size change from 1/2" to 1-1/4", the inlet water pressure of the eyewash station may be lower than 0.2MPa. There is a risk that the water is unable sprayed out from the eyewash nozzles. And we always test our eye wash station with 1-1/4" water line, and make sure the water pressure of our water supply is within 0.2-0.4MPa. Thus sorry that we are unable to make sure if it can work under your 1/2" water line or not. And we recommend you purchase our wall mount eye wash station, its water inlet is 1/2" NPT thread, which can work with your water line: https://www.amazon.com/dp/B07FDV938L Any problem, please feel free to contact us again.

Manufacturer	CGOLDENWALL
Part Number	CNA 808
Package Dimensions	74.6 x 29.8 x 26 cm; 11.36 kg
Item model number	CNA 808
Colour	304 Stainless Steel With Abs Bowl
Material	ABS, SUS304 Stainless Steel
Item Package Quantity	1
Number of Pieces	1
Special Features	ANSI Z358.1 OSHA Approved Emergency Station, Advanced Filtration for Gentle Eye Rinsing, Dual-Function Eyewash & Shower Response, High-Efficiency Flow with Instant Activation, Premium SUS304 Stainless Steel Construction
Batteries included?	No
Batteries Required?	No
Item Weight	11.4 kg

Combination Eyewash Station

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