166:RReturn to Excess Flow Check Valve - Model 166

Flow Rating

The table on the following page shows the range of flow rates available for common fluids. Each size valve has several different spring options that can be used to vary the closing flow rate. Please contact MGM for assistance in choosing the proper spring for your specific application.

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			LIQUID FLOW RATES (GALLONS PER MINUTE)				VAPOR FLOW RATES (SCFM*)
SPRING	Delta P	CV	WATER	NH3	PROPANE	BUTANE	AIR	NH3	PROPANE	BUTANE
X754	3.0	386.8	670	853	938	877	7,174	9,356	5,814	5,064	Get Quote
X414	4.0	479.0	958	1,219	1,341	1,254	10,258	13,378	8,314	7,241	Get Quote
X1085	6.0	422.1	1,034	1,316	1,448	1,353	11,072	14,439	8,973	7,816	Get Quote
X1169B	12.0	439.4	1,522	1,937	2,131	1,992	16,298	21,254	13,208	11,504	Get Quote
3004+15%	14.0	433.5	1,622	2,064	2,271	2,122	17,369	22,650	14,076	12,260	Get Quote
3004+24%	14.0	444.5	1,663	2,117	2,329	2,176	17,808	23,223	14,432	12,570	Get Quote

*Vapor flow rates are shown at 60 degrees F, 100 psig