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Valve - Model 301

Product Catalog >> Valves >> Threaded Style >> Excess Flow Check Valve >> Model 301

Overview

Application

MGM Series 301 Excess Flow Check Valves are designed for use in threaded tank nozzles. They are made completely of carbon and stainless steel. Smaller valve bodies are machined from bar stock, the larger valve bodies from pipe and flat plate.

No. 301 MGM Excess Flow Check Valves have male pipe threads on the bottom ends. They are equipped with a 1/4 inch notch in the threaded end to ease installation.

No. 301 MGM Excess Flow Check Valves can be mounted in any orientation with negligible effect on flow rate.

As with all MGM excess flow check valves, the Series 301 is equipped with an orifice in the check mechanism to allow for pressure equalization and will reopen automatically after repairs are made.

Features

Valve is designed to be threaded into tank nozzle. A 1/4" notch is provided to ease installation.
Generous flow channels provide low pressure drops.
Heavy duty all steel construction will withstand extremely rough conditions.
Complete 304 or 316 stainless steel construction available for use in corrosive environments.
CRN # OC13500.5C
Other valve sizes may be available. Contact MGM for alternate sizes.

Tech Specs

Materials

Body - Carbon Steel
Poppet - Stainless Steel
Guide - Carbon Steel
Nut - Stainless Steel
Spring - Stainless Steel
Cotter Pin - Stainless Steel

Sizes and Dimensions

Series	Dimensions
Series	A-Open	B-MNPT	C	D	E
301:I 2"	3.44	2	.58	1.5	1.9
301:K 3"	4.17	3	.95	2.0	2.88
301:M 4"	5.11	4	1.09	2.5	3.75
301:P 6"	7.72	6	1.25	4.0	5.56
301:Q 8"	8.88	8	1.44	4.25	7.5

All Size Values are in Inches.

Flow Ratings

Series

Flow Data (click to expand)

301:I

Flow Ratings

Spring X592 Delta P (0.5) CV Value (14.1)	LFR	Water	Propane	NH3	Butane
	LFR	10	14.0	12.7	13.1
	VF	Air	NH3	Propane
	VF	107.1	139.6	86.8
Spring X591 Delta P (1.5) CV Value (16.3)	LFR	Water	Propane	NH3	Butane
	LFR	20	28.0	25.4	26.3
	VF	Air	NH3	Propane
	VF	214.2	279.3	173.6
Spring X863 Delta P (1.6) CV Value (17.4)	LFR	Water	Propane	NH3	Butane
	LFR	22	30.8	27.9	28.9
	VF	Air	NH3	Propane
	VF	235.6	307.2	190.9
Spring X742 Delta P (2.7) CV Value (16.4)	LFR	Water	Propane	NH3	Butane
	LFR	27	37.8	34.3	35.5
	VF	Air	NH3	Propane
	VF	289.1	377.0	234.3
Spring X371 Delta P (3) CV Value (17.9)	LFR	Water	Propane	NH3	Butane
	LFR	31	43.4	39.4	40.7
	VF	Air	NH3	Propane
	VF	332.0	432.9	269.0
Spring X521 Delta P (12.6) CV Value (16.9)	LFR	Water	Propane	NH3	Butane
	LFR	60	84.0	76.2	78.8
	VF	Air	NH3	Propane
	VF	642.5	837.9	520.7
Spring X1098 Delta P (14.6) CV Value (16.5)	LFR	Water	Propane	NH3	Butane
	LFR	63	88.2	80.0	82.7
	VF	Air	NH3	Propane
	VF	674.6	879.8	546.7

LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig

301:K

Flow Ratings

Spring X1013 Delta P (0.8) CV Value (16.8)	LFR	Water	Propane	NH3	Butane
	LFR	15	21.0	19.1	19.7
	VF	Air	NH3	Propane
	VF	160.6	209.5	130.2
Spring X1326 Delta P (1) CV Value (27.0)	LFR	Water	Propane	NH3	Butane
	LFR	27	37.8	34.3	35.5
	VF	Air	NH3	Propane
	VF	289.1	377.0	234.3
Spring X671 Delta P (1.6) CV Value (41.9)	LFR	Water	Propane	NH3	Butane
	LFR	53	74.2	67.3	69.6
	VF	Air	NH3	Propane
	VF	567.5	740.1	460.0
Spring X672 Delta P (2.3) CV Value (39.6)	LFR	Water	Propane	NH3	Butane
	LFR	60	84.0	76.2	78.8
	VF	Air	NH3	Propane
	VF	642.5	837.9	520.7
Spring X586 Delta P (2.7) CV Value (39.6)	LFR	Water	Propane	NH3	Butane
	LFR	65	91.0	82.6	85.3
	VF	Air	NH3	Propane
	VF	696.0	907.7	564.1
Spring X384 Delta P (5.2) CV Value (39.0)	LFR	Water	Propane	NH3	Butane
	LFR	89	124.6	113.0	116.9
	VF	Air	NH3	Propane
	VF	953.0	1,242.8	772.4
Spring X756 Delta P (5.5) CV Value (39.7)	LFR	Water	Propane	NH3	Butane
	LFR	93	130.2	118.1	122.1
	VF	Air	NH3	Propane
	VF	995.9	1,298.7	807.1
Spring X593 Delta P (9.1) CV Value (40.1)	LFR	Water	Propane	NH3	Butane
	LFR	121	169.4	153.7	158.9
	VF	Air	NH3	Propane
	VF	1,295.7	1,689.7	1,050.1
Spring X914 Delta P (9.6) CV Value (39.7)	LFR	Water	Propane	NH3	Butane
	LFR	123	172.2	156.2	161.5
	VF	Air	NH3	Propane
	VF	1,317.1	1,717.6	1,067.4
Spring X1086 Delta P (14.9) CV Value (37.0)	LFR	Water	Propane	NH3	Butane
	LFR	143	200.2	181.6	187.8
	VF	Air	NH3	Propane
	VF	1,531.3	1,996.9	1,241.0

LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig

301:M

Flow Ratings

Spring X733 Delta P (0.3) CV Value (87.6)	LFR	Water	Propane	NH3	Butane
	LFR	48	67.2	61.0	63.0
	VF	Air	NH3	Propane
	VF	514.0	670.3	416.6
Spring X723 Delta P (0.62) CV Value (82.6)	LFR	Water	Propane	NH3	Butane
	LFR	65	91.0	82.6	85.3
	VF	Air	NH3	Propane
	VF	696.0	907.7	564.1
Spring X743 Delta P (0.74) CV Value (82.5)	LFR	Water	Propane	NH3	Butane
	LFR	71	99.4	90.2	93.2
	VF	Air	NH3	Propane
	VF	760.3	991.5	616.2
Spring X596 Delta P (1.5) CV Value (84.1)	LFR	Water	Propane	NH3	Butane
	LFR	103	144.2	130.8	135.2
	VF	Air	NH3	Propane
	VF	1,102.9	1,438.3	893.9
Spring X673 Delta P (3.1) CV Value (76.1)	LFR	Water	Propane	NH3	Butane
	LFR	134	187.6	170.2	176.0
	VF	Air	NH3	Propane
	VF	1,434.9	1,871.2	1,162.9
Spring X395 Delta P (5) CV Value (66.2)	LFR	Water	Propane	NH3	Butane
	LFR	148	207.2	188.0	194.3
	VF	Air	NH3	Propane
	VF	1,584.8	2,066.7	1,284.4
Spring X520 Delta P (6.2) CV Value (76.3)	LFR	Water	Propane	NH3	Butane
	LFR	190	266.1	241.3	249.5
	VF	Air	NH3	Propane
	VF	2,034.5	2,653.3	1,648.9
Spring X590 Delta P (7.03) CV Value (77.3)	LFR	Water	Propane	NH3	Butane
	LFR	205	287.1	260.4	269.2
	VF	Air	NH3	Propane
	VF	2,195.2	2,862.7	1,779.1
Spring X589 Delta P (8.7) CV Value (74.9)	LFR	Water	Propane	NH3	Butane
	LFR	221	309.5	280.7	290.2
	VF	Air	NH3	Propane
	VF	2,366.5	3,086.2	1,917.9
Spring X561 Delta P (8.8) CV Value (76.2)	LFR	Water	Propane	NH3	Butane
	LFR	226	316.5	287.0	296.8
	VF	Air	NH3	Propane
	VF	2,420.0	3,156.0	1,961.3
Spring X588 Delta P (14.5) CV Value (72.7)	LFR	Water	Propane	NH3	Butane
	LFR	277	387.9	351.8	363.7
	VF	Air	NH3	Propane
	VF	2,966.2	3,868.2	2,403.9

LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig

301:P

Flow Ratings

Spring X562 Delta P (1.2) CV Value (144.2)	LFR	Water	Propane	NH3	Butane
	LFR	158	221.2	200.7	207.5
	VF	Air	NH3	Propane
	VF	1,691.9	2,206.4	1,371.2
Spring X656 Delta P (1.6) CV Value (152.6)	LFR	Water	Propane	NH3	Butane
	LFR	193	270.3	245.1	253.4
	VF	Air	NH3	Propane
	VF	2,066.7	2,695.1	1,674.9
Spring X722 Delta P (2.2) CV Value (152.4)	LFR	Water	Propane	NH3	Butane
	LFR	226	316.5	287.0	296.8
	VF	Air	NH3	Propane
	VF	2,420.0	3,156.0	1,961.3
Spring X372 Delta P (4) CV Value (165.5)	LFR	Water	Propane	NH3	Butane
	LFR	331	463.5	420.4	434.6
	VF	Air	NH3	Propane
	VF	3,544.4	4,622.3	2,872.5
Spring X1093 Delta P (4.7) CV Value (174.8)	LFR	Water	Propane	NH3	Butane
	LFR	379	530.7	481.3	497.7
	VF	Air	NH3	Propane
	VF	4,058.4	5,292.5	3,289.1
Spring X574 Delta P (6.1) CV Value (164.8)	LFR	Water	Propane	NH3	Butane
	LFR	407	569.9	516.9	534.4
	VF	Air	NH3	Propane
	VF	4,358.2	5,683.6	3,532.1
Spring X1014 Delta P (10.3) CV Value (166.7)	LFR	Water	Propane	NH3	Butane
	LFR	535	749.1	679.5	702.5
	VF	Air	NH3	Propane
	VF	5,728.9	7,471.0	4,642.9
Spring X1016 Delta P (11.9) CV Value (167.3)	LFR	Water	Propane	NH3	Butane
	LFR	577	808.0	732.8	757.6
	VF	Air	NH3	Propane
	VF	6,178.6	8,057.5	5,007.4
Spring X1101 Delta P (18) CV Value (162.9)	LFR	Water	Propane	NH3	Butane
	LFR	691	967.6	877.6	907.3
	VF	Air	NH3	Propane
	VF	7,399.3	9,649.5	5,996.7

LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig

301:Q

Flow Ratings

Spring X670 Delta P (1.1) CV Value (210.7)	LFR	Water	Propane	NH3	Butane
	LFR	221	309.5	280.7	290.2
	VF	Air	NH3	Propane
	VF	2,366.5	3,086.2	1,917.9
Spring X685-20% Delta P (1.3) CV Value (235.1)	LFR	Water	Propane	NH3	Butane
	LFR	268	375.3	340.4	351.9
	VF	Air	NH3	Propane
	VF	2,869.8	3,742.5	2,325.8
Spring X685-10% Delta P (1.4) CV Value (240.0)	LFR	Water	Propane	NH3	Butane
	LFR	284	397.7	360.7	372.9
	VF	Air	NH3	Propane
	VF	3,041.1	3,965.9	2,464.6
Spring X685 Delta P (1.6) CV Value (234.8)	LFR	Water	Propane	NH3	Butane
	LFR	297	415.9	377.2	390.0
	VF	Air	NH3	Propane
	VF	3,180.3	4,147.5	2,577.5
Spring X728 Delta P (2) CV Value (285.0)	LFR	Water	Propane	NH3	Butane
	LFR	403	564.3	511.8	529.2
	VF	Air	NH3	Propane
	VF	4,315.4	5,627.7	3,497.4
Spring X408 Delta P (3) CV Value (258.1)	LFR	Water	Propane	NH3	Butane
	LFR	447	625.9	567.7	586.9
	VF	Air	NH3	Propane
	VF	4,786.5	6,242.1	3,879.2
Spring X730 Delta P (4.9) CV Value (263.8)	LFR	Water	Propane	NH3	Butane
	LFR	584	817.8	741.7	766.8
	VF	Air	NH3	Propane
	VF	6,253.6	8,155.3	5,068.1
Spring X669 Delta P (5.5) CV Value (261.4)	LFR	Water	Propane	NH3	Butane
	LFR	613	858.4	778.5	804.9
	VF	Air	NH3	Propane
	VF	6,564.1	8,560.2	5,319.8
Spring X1351 Delta P (6.9) CV Value (272.2)	LFR	Water	Propane	NH3	Butane
	LFR	715	1,001.2	908.1	938.8
	VF	Air	NH3	Propane
	VF	7,656.3	9,984.6	6,205.0
Spring X1094 Delta P (13.7) CV Value (263.4)	LFR	Water	Propane	NH3	Butane
	LFR	975	1,365.3	1,238.3	1,280.2
	VF	Air	NH3	Propane
	VF	10,440.4	13,615.4	8,461.4

LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig

Contact MGM for additional flow data or assistance.

Metal Goods Manufacturing Company inc.

The Measure of QUALITY in Check Valves, Tank Gauges, and Laboratory Test Equipment

Valve - Model 301

Overview

Application

Features

Tech Specs

Materials

Sizes and Dimensions

Flow Ratings