Valve - Model 189

Overview

Valve 189

Application

MGM Series 189 Excess Flow Check Valves are designed for use where flanged connections are required. They are made completely of carbon and/or stainless steel not castings for added durability.

No. 189 MGM Excess Flow Check Valves are double flanged and are equipped with either 150# or 300# raised face, forged flanges. Standard gaskets should be used on each end.

No.189 MGM Excess Flow Check Valves can be installed in any orientation with negligible effect on flow rate. Each valve has the proper flow direction indicated by an arrow stamped into the body.

As with all MGM excess flow check valves, the Series 189 is equipped with an orifice in the check mechanism to allow for pressure equalization and will reopen automatically after repairs are made.

Features

  • Designed to fit between 150 or 300 pound American Standard steel pipe flanges. Ring Groove flanges can be furnished if required.
  • A350 LF2 forged carbon steel flanges
  • Generous flow channels provide low pressure drops.
  • Heavy duty all steel construction will withstand extremely rough conditions.
  • Complete 304 or 316 stainless steel construction is available for use in corrosive or extreme environments.
  • UNDERWRITERS LABORATORIES INC. listed for propane, butane, and anhydrous ammonia.
  • 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
Valve 189 Diagram

Sizes and Dimensions

Series Dimensions
A
189:I
2"		4.5
189:K
3"		5.25
189:M
4"		6.0
189:P
6"		8.63
189:Q
8"		10.0
189:R
10"		13.13

All Size Values are in Inches.

Flow Ratings

Series Flow Data (click to expand)
189:IFlow Ratings
Spring
X592
Delta P
(0.5)
CV Value
(14.1)		LFR Water Propane NH3 Butane
10 14.0 12.7 13.1
VF Air NH3 Propane
107.1 139.6 86.8
Spring
X591
Delta P
(1.5)
CV Value
(16.3)		LFR Water Propane NH3 Butane
20 28.0 25.4 26.3
VF Air NH3 Propane
214.2 279.3 173.6
Spring
X863
Delta P
(1.6)
CV Value
(17.4)		LFR Water Propane NH3 Butane
22 30.8 27.9 28.9
VF Air NH3 Propane
235.6 307.2 190.9
Spring
X742
Delta P
(2.7)
CV Value
(16.4)		LFR Water Propane NH3 Butane
27 37.8 34.3 35.5
VF Air NH3 Propane
289.1 377.0 234.3
Spring
X371
Delta P
(3)
CV Value
(17.9)		LFR Water Propane NH3 Butane
31 43.4 39.4 40.7
VF Air NH3 Propane
332.0 432.9 269.0
Spring
X521
Delta P
(12.6)
CV Value
(16.9)		LFR Water Propane NH3 Butane
60 84.0 76.2 78.8
VF Air NH3 Propane
642.5 837.9 520.7
Spring
X1098
Delta P
(14.6)
CV Value
(16.5)		LFR Water Propane NH3 Butane
63 88.2 80.0 82.7
VF Air NH3 Propane
674.6 879.8 546.7
LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig
189:KFlow Ratings
Spring
X1013
Delta P
(0.8)
CV Value
(16.8)		LFR Water Propane NH3 Butane
15 21.0 19.1 19.7
VF Air NH3 Propane
160.6 209.5 130.2
Spring
X1326
Delta P
(1)
CV Value
(27.0)		LFR Water Propane NH3 Butane
27 37.8 34.3 35.5
VF Air NH3 Propane
289.1 377.0 234.3
Spring
X671
Delta P
(1.6)
CV Value
(41.9)		LFR Water Propane NH3 Butane
53 74.2 67.3 69.6
VF Air NH3 Propane
567.5 740.1 460.0
Spring
X672
Delta P
(2.3)
CV Value
(39.6)		LFR Water Propane NH3 Butane
60 84.0 76.2 78.8
VF Air NH3 Propane
642.5 837.9 520.7
Spring
X586
Delta P
(2.7)
CV Value
(39.6)		LFR Water Propane NH3 Butane
65 91.0 82.6 85.3
VF Air NH3 Propane
696.0 907.7 564.1
Spring
X384
Delta P
(5.2)
CV Value
(39.0)		LFR Water Propane NH3 Butane
89 124.6 113.0 116.9
VF Air NH3 Propane
953.0 1,242.8 772.4
Spring
X756
Delta P
(5.5)
CV Value
(39.7)		LFR Water Propane NH3 Butane
93 130.2 118.1 122.1
VF Air NH3 Propane
995.9 1,298.7 807.1
Spring
X593
Delta P
(9.1)
CV Value
(40.1)		LFR Water Propane NH3 Butane
121 169.4 153.7 158.9
VF Air NH3 Propane
1,295.7 1,689.7 1,050.1
Spring
X914
Delta P
(9.6)
CV Value
(39.7)		LFR Water Propane NH3 Butane
123 172.2 156.2 161.5
VF Air NH3 Propane
1,317.1 1,717.6 1,067.4
Spring
X1086
Delta P
(14.9)
CV Value
(37.0)		LFR Water Propane NH3 Butane
143 200.2 181.6 187.8
VF Air NH3 Propane
1,531.3 1,996.9 1,241.0
LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig
189:MFlow Ratings
Spring
X733
Delta P
(0.3)
CV Value
(87.6)		LFR Water Propane NH3 Butane
48 67.2 61.0 63.0
VF Air NH3 Propane
514.0 670.3 416.6
Spring
X723
Delta P
(0.62)
CV Value
(82.6)		LFR Water Propane NH3 Butane
65 91.0 82.6 85.3
VF Air NH3 Propane
696.0 907.7 564.1
Spring
X743
Delta P
(0.74)
CV Value
(82.5)		LFR Water Propane NH3 Butane
71 99.4 90.2 93.2
VF Air NH3 Propane
760.3 991.5 616.2
Spring
X596
Delta P
(1.5)
CV Value
(84.1)		LFR Water Propane NH3 Butane
103 144.2 130.8 135.2
VF Air NH3 Propane
1,102.9 1,438.3 893.9
Spring
X673
Delta P
(3.1)
CV Value
(76.1)		LFR Water Propane NH3 Butane
134 187.6 170.2 176.0
VF Air NH3 Propane
1,434.9 1,871.2 1,162.9
Spring
X395
Delta P
(5)
CV Value
(66.2)		LFR Water Propane NH3 Butane
148 207.2 188.0 194.3
VF Air NH3 Propane
1,584.8 2,066.7 1,284.4
Spring
X520
Delta P
(6.2)
CV Value
(76.3)		LFR Water Propane NH3 Butane
190 266.1 241.3 249.5
VF Air NH3 Propane
2,034.5 2,653.3 1,648.9
Spring
X590
Delta P
(7.03)
CV Value
(77.3)		LFR Water Propane NH3 Butane
205 287.1 260.4 269.2
VF Air NH3 Propane
2,195.2 2,862.7 1,779.1
Spring
X589
Delta P
(8.7)
CV Value
(74.9)		LFR Water Propane NH3 Butane
221 309.5 280.7 290.2
VF Air NH3 Propane
2,366.5 3,086.2 1,917.9
Spring
X561
Delta P
(8.8)
CV Value
(76.2)		LFR Water Propane NH3 Butane
226 316.5 287.0 296.8
VF Air NH3 Propane
2,420.0 3,156.0 1,961.3
Spring
X588
Delta P
(14.5)
CV Value
(72.7)		LFR Water Propane NH3 Butane
277 387.9 351.8 363.7
VF Air NH3 Propane
2,966.2 3,868.2 2,403.9
LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig
189:PFlow Ratings
Spring
X562
Delta P
(1.2)
CV Value
(144.2)		LFR Water Propane NH3 Butane
158 221.2 200.7 207.5
VF Air NH3 Propane
1,691.9 2,206.4 1,371.2
Spring
X656
Delta P
(1.6)
CV Value
(152.6)		LFR Water Propane NH3 Butane
193 270.3 245.1 253.4
VF Air NH3 Propane
2,066.7 2,695.1 1,674.9
Spring
X722
Delta P
(2.2)
CV Value
(152.4)		LFR Water Propane NH3 Butane
226 316.5 287.0 296.8
VF Air NH3 Propane
2,420.0 3,156.0 1,961.3
Spring
X372
Delta P
(4)
CV Value
(165.5)		LFR Water Propane NH3 Butane
331 463.5 420.4 434.6
VF Air NH3 Propane
3,544.4 4,622.3 2,872.5
Spring
X1093
Delta P
(4.7)
CV Value
(174.8)		LFR Water Propane NH3 Butane
379 530.7 481.3 497.7
VF Air NH3 Propane
4,058.4 5,292.5 3,289.1
Spring
X574
Delta P
(6.1)
CV Value
(164.8)		LFR Water Propane NH3 Butane
407 569.9 516.9 534.4
VF Air NH3 Propane
4,358.2 5,683.6 3,532.1
Spring
X1014
Delta P
(10.3)
CV Value
(166.7)		LFR Water Propane NH3 Butane
535 749.1 679.5 702.5
VF Air NH3 Propane
5,728.9 7,471.0 4,642.9
Spring
X1016
Delta P
(11.9)
CV Value
(167.3)		LFR Water Propane NH3 Butane
577 808.0 732.8 757.6
VF Air NH3 Propane
6,178.6 8,057.5 5,007.4
Spring
X1101
Delta P
(18)
CV Value
(162.9)		LFR Water Propane NH3 Butane
691 967.6 877.6 907.3
VF Air NH3 Propane
7,399.3 9,649.5 5,996.7
LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig
189:QFlow Ratings
Spring
X670
Delta P
(1.1)
CV Value
(210.7)		LFR Water Propane NH3 Butane
221 309.5 280.7 290.2
VF Air NH3 Propane
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
268 375.3 340.4 351.9
VF Air NH3 Propane
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
284 397.7 360.7 372.9
VF Air NH3 Propane
3,041.1 3,965.9 2,464.6
Spring
X685
Delta P
(1.6)
CV Value
(234.8)		LFR Water Propane NH3 Butane
297 415.9 377.2 390.0
VF Air NH3 Propane
3,180.3 4,147.5 2,577.5
Spring
X728
Delta P
(2)
CV Value
(285.0)		LFR Water Propane NH3 Butane
403 564.3 511.8 529.2
VF Air NH3 Propane
4,315.4 5,627.7 3,497.4
Spring
X408
Delta P
(3)
CV Value
(258.1)		LFR Water Propane NH3 Butane
447 625.9 567.7 586.9
VF Air NH3 Propane
4,786.5 6,242.1 3,879.2
Spring
X730
Delta P
(4.9)
CV Value
(263.8)		LFR Water Propane NH3 Butane
584 817.8 741.7 766.8
VF Air NH3 Propane
6,253.6 8,155.3 5,068.1
Spring
X669
Delta P
(5.5)
CV Value
(261.4)		LFR Water Propane NH3 Butane
613 858.4 778.5 804.9
VF Air NH3 Propane
6,564.1 8,560.2 5,319.8
Spring
X1351
Delta P
(6.9)
CV Value
(272.2)		LFR Water Propane NH3 Butane
715 1,001.2 908.1 938.8
VF Air NH3 Propane
7,656.3 9,984.6 6,205.0
Spring
X1094
Delta P
(13.7)
CV Value
(263.4)		LFR Water Propane NH3 Butane
975 1,365.3 1,238.3 1,280.2
VF Air NH3 Propane
10,440.4 13,615.4 8,461.4
LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig
189:RFlow Ratings
Spring
X754
Delta P
(3)
CV Value
(386.8)		LFR Water Propane NH3 Butane
670 938.2 850.9 879.8
VF Air NH3 Propane
7,174.5 9,356.2 5,814.5
Spring
X414
Delta P
(4)
CV Value
(479.0)		LFR Water Propane NH3 Butane
958 1,341.5 1,216.7 1,257.9
VF Air NH3 Propane
10,258.4 13,378.0 8,313.8
Spring
X1085
Delta P
(6)
CV Value
(422.1)		LFR Water Propane NH3 Butane
1034 1,447.9 1,313.2 1,357.7
VF Air NH3 Propane
11,072.2 14,439.3 8,973.4
Spring
X1169B
Delta P
(12)
CV Value
(439.4)		LFR Water Propane NH3 Butane
1522 2,131.2 1,932.9 1,998.5
VF Air NH3 Propane
16,297.8 21,254.0 13,208.4
Spring
3004+15%
Delta P
(14)
CV Value
(433.5)		LFR Water Propane NH3 Butane
1622 2,271.3 2,059.9 2,129.8
VF Air NH3 Propane
17,368.6 22,650.4 14,076.2
Spring
3004+24%
Delta P
(14)
CV Value
(444.5)		LFR Water Propane NH3 Butane
1663 2,328.7 2,112.0 2,183.6
VF Air NH3 Propane
17,807.6 23,223.0 14,432.0
LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig
Contact MGM for additional flow data or assistance.