Expanding Gate (Model MRC)

Model MRC Expanding Gate

Model M 2,000 - 3,000 - 5,000 LB. W.P.
2 1/16" - 2 9/16" - 3 1/8" - 4 1/16" - 5 1/8"
Expanding Gate (Handwheel Operated)

Model MRC Gate Valve - Assembly Bill of Materials

Item Component Qty.
1 Body-Forged 1
2 Bonnet-Forged 1
3 Stud & Nut, Body/Bonnet 8
4 Bonnet Seal Ring 1
5 Grease Almenite Fitting 1
6 Packing Injection Fitting 1
7 Body Grease Fitting 2
8 Stem 1
9 Packing Set Chevron V 1
9a Packing Injection 1
10 Bearing Retaining Lock Nut 1
11 Bearing Retaining Nut 1
12 Bearing Spacer Sleeve 1
13 Packing Retainer Bushing 1
14 Gate & Segment - Assembly 1
14a Pin, Gate 6
14b Spring, Gate 2
15 Thrust Bearing 2
16 Seat Ass.-TFE-Face-Round Cavity 2
16a Teflon Insert 2
16b O-Ring, Backseal 2
17 Gate Guide 2
18 Handwheel 1
19 Handwheel Nut 1
20 Handwheel Washer 1
21 Name Plate 1
22 Grease Fill
Last Updated: May 18, 2010

Model MRC Gate Valve - Specifications


Nominal Size
Pressure Rating psi		 A
End to End		 B
Nominal Bore		 C
Center Line to Bottom		 D
Center Line to Top		 E
Handwheel Diameter		 F
Extreme Body Width
Flange Ring Joint
Bonnet Stud Size(# of Studs)
Turns to Open
Amount of Grease (Lbs. Approx.)
Total Weight
2 1/16" 2K 11 5/8 2 1/16 5 1/2 19 1/2 10 6 3/8 R23 5/8 (8) 14 2.25 120
2 1/16" 3K 14 5/8 2 1/16 5 1/2 19 5/8 13 7 1/4 R24 7/8 (8) 14 2.25 180
2 1/16" 5K 14 5/8 2 1/16 5 1/2 19 5/8 13 7 1/4 R24 7/8 (8) 14 2.25 180
2 9/16" 2K 13 1/8 2 9/16 6 5/8 20 1/2 13 8 1/2 R26 7/8 (8) 16 1/2 2.75 180
2 9/16" 3K 16 5/8 2 9/16 6 5/8 20 5/8 16 7 13/16 R27 7/8 (8) 16 1/2 2.75 220
2 9/16" 5K 16 5/8 2 9/16 6 5/8 20 5/8 16 7 13/16 R27 7/8 (8) 16 1/2 2.75 220
3 1/8" 2K 14 1/8 3 1/8 7 1/2 22 7/8 13 7 R31 5/8 (8) 20 3/4 3.25 220
3 1/8" 3K 17 1/8 3 1/8 7 1/2 23 16 9 1/4 R31 1 (8) 20 3/4 3.25 300
3 1/8" 5K 18 5/8 3 1/8 7 1/2 23 16 9 1/4 R35 1 (8) 20 3/4 3.25 340
4 1/16" 2K 17 1/8 4 1/16 9 26 1/2 16 11 R37 1 (8) 24 3/4 4.25 360
4 1/16" 3K 20 1/8 4 1/16 9 1/8 26 5/8 20 12 R37 1 3/8 (8) 24 3/4 4.25 520
4 1/16" 5K 21 5/8 4 1/16 9 1/8 26 5/8 20 12 R39 1 3/8 (8) 24 3/4 4.25 560
5 1/8" 2K 22 1/8 5 1/8 11 1/4 28 19 4/5 12 13/16 R41 1 3/8 (8) 30 1/4 5.25 965
5 1/8" 3K 24 1/8 5 1/8 11 1/2 28 24 12 4/5 R41 1 3/8 (8) 30 1/4 5.25 990
5 1/8" 5K 28 5/8 5 1/8 11 3/4 28 24 12 4/5 R44 1 3/8 (8) 30 1/4 5.25 1056
Last Updated: May 18, 2010

The Model MRC Forged Body Line is the Model M Gate Valve with a round cavity (Centrifugal) internal body as required for production of the Model M except the Model MRC utilizes an extended round cavity seat to extend the body to the gate seal. The Forged Line is available for PSL 3 (Product Specification Level 3) which requires a Forged Body versus the Cast Body. The Model MRC (Round Cavity) Forged Body, is with an expanding gate.

All Valveworks USA Model Gate Valves utilize the most common proven interchangeable valve parts in the industry. These include the Model M and FC. This allows the user easy access to replacement parts at the most competitive prices. All Valveworks USA Model Gate Valve replacement parts are standard stock products available for immediate delivery in most cases. Valveworks USA makes available to the industry many gate valve replacement parts which are outside the Valveworks Gate Valve Line. Manufacturing is available for any part required VIA Customer requirement.

For low temperature applications, we use PLUSCO 511 AG valve lubricant. It is black in appearance and has a service temperature range of -65°F to 270°F.

All dimensions in inches, weights in lbs. If dimensions/weights are critical, please consult factory. Valveworks USA reserves the right to alter designs and specifications without notice.