Valve - Model 185

Overview

Valve 185

Application

MGM Series 185 Excess Flow Check Valves are designed for use where threaded connections are re- quired. They are made completely of carbon and stainless steel. Bodies are machined from bar stock, not castings, for added durability.

No. 185 MGM Excess Flow Check Valves have female NPT pipe threads on both ends.

No.185 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 185 is equipped with an orifice in the check mechanism to allow for pressure equalization and will reopen automatically after repairs are made.

Features

  • 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.

Tech Specs

Materials

  • Body - Carbon Steel
  • Poppet - Stainless Steel
  • Guide - Carbon Steel
  • Nut - Stainless Steel
  • Sprint - Stainless Steel
Valve 185 Diagram

Sizes and Dimensions

Series Dimensions
A-OpenB-FNPTHEX
185:FF
1x1		4.3111.75
185:GG
1.25x1.25		4.031.252.25
185:HH
1.5x1.5		4.531.52.5
185:II
2x2		4.7822.75

All Size Values are in Inches.

Flow Ratings

Series Flow Data (click to expand)
185:FFFlow Ratings
Spring
X721
Delta P
(0.8)
CV Value
(4.6)		LFR Water Propane NH3 Butane
4.1 5.7 5.2 5.4
VF Air NH3 Propane
43.9 57.3 35.6
Spring
X894
Delta P
(0.7)
CV Value
(5.1)		LFR Water Propane NH3 Butane
4.3 6.0 5.5 5.6
VF Air NH3 Propane
46.0 60.0 37.3
Spring
X866
Delta P
(0.8)
CV Value
(5.6)		LFR Water Propane NH3 Butane
5 7.0 6.4 6.6
VF Air NH3 Propane
53.5 69.8 43.4
Spring
X683
Delta P
(1)
CV Value
(6.0)		LFR Water Propane NH3 Butane
6 8.4 7.6 7.9
VF Air NH3 Propane
64.2 83.8 52.1
Spring
X872
Delta P
(1.2)
CV Value
(6.4)		LFR Water Propane NH3 Butane
7 9.8 8.9 9.2
VF Air NH3 Propane
75.0 97.8 60.7
Spring
X684
Delta P
(1.7)
CV Value
(5.8)		LFR Water Propane NH3 Butane
7.6 10.6 9.7 10.0
VF Air NH3 Propane
81.4 106.1 66.0
Spring
X653
Delta P
(2.5)
CV Value
(6.5)		LFR Water Propane NH3 Butane
10.3 14.4 13.1 13.5
VF Air NH3 Propane
110.3 143.8 89.4
Spring
X161
Delta P
(4)
CV Value
(7.0)		LFR Water Propane NH3 Butane
14 19.6 17.8 18.4
VF Air NH3 Propane
149.9 195.5 121.5
Spring
X429
Delta P
(10.3)
CV Value
(6.7)		LFR Water Propane NH3 Butane
21.5 30.1 27.3 28.2
VF Air NH3 Propane
230.2 300.2 186.6
LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig
185:GGFlow Ratings
Spring
X755
Delta P
(0.2)
CV Value
(11.2)		LFR Water Propane NH3 Butane
5 7.0 6.4 6.6
VF Air NH3 Propane
53.5 69.8 43.4
Spring
X162
Delta P
(2.2)
CV Value
(14.2)		LFR Water Propane NH3 Butane
21 29.4 26.7 27.6
VF Air NH3 Propane
224.9 293.3 182.2
LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig
185:HHFlow Ratings
Spring
X1071
Delta P
(0.05)
CV Value
(33.5)		LFR Water Propane NH3 Butane
7.5 10.5 9.5 9.8
VF Air NH3 Propane
80.3 104.7 65.1
Spring
X1074
Delta P
(0.25)
CV Value
(19.0)		LFR Water Propane NH3 Butane
9.5 13.3 12.1 12.5
VF Air NH3 Propane
101.7 132.7 82.4
Spring
X323
Delta P
(1.2)
CV Value
(22.8)		LFR Water Propane NH3 Butane
25 35.0 31.8 32.8
VF Air NH3 Propane
267.7 349.1 217.0
Spring
X118
Delta P
(4)
CV Value
(17.5)		LFR Water Propane NH3 Butane
35 49.0 44.5 46.0
VF Air NH3 Propane
374.8 488.8 303.7
Spring
X1097
Delta P
(5.5)
CV Value
(16.2)		LFR Water Propane NH3 Butane
38 53.2 48.3 49.9
VF Air NH3 Propane
406.9 530.7 329.8
LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig
185:IIFlow Ratings
Spring
X505
Delta P
(0.5)
CV Value
(24.0)		LFR Water Propane NH3 Butane
17 23.8 21.6 22.3
VF Air NH3 Propane
182.0 237.4 147.5
Spring
X686
Delta P
(1)
CV Value
(25.0)		LFR Water Propane NH3 Butane
25 35.0 31.8 32.8
VF Air NH3 Propane
267.7 349.1 217.0
Spring
X321
Delta P
(1.5)
CV Value
(28.6)		LFR Water Propane NH3 Butane
35 49.0 44.5 46.0
VF Air NH3 Propane
374.8 488.8 303.7
Spring
X827
Delta P
(2.4)
CV Value
(27.8)		LFR Water Propane NH3 Butane
43 60.2 54.6 56.5
VF Air NH3 Propane
460.5 600.5 373.2
Spring
X167
Delta P
(3)
CV Value
(28.9)		LFR Water Propane NH3 Butane
50 70.0 63.5 65.7
VF Air NH3 Propane
535.4 698.2 433.9
Spring
X1103
Delta P
(5)
CV Value
(25.0)		LFR Water Propane NH3 Butane
56 78.4 71.1 73.5
VF Air NH3 Propane
599.7 782.0 486.0
LFR = Liquid Flow Rate (Gal/Min)
VF = Vapor Flow (SCFM), 60 deg F, 100 psig
Contact MGM for additional flow data or assistance.