Trumbull 367-1414 User manual

Page 1 of 12
A. General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2
B. Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
C. Literature Sheet, Cast Iron Mud Valves . . . . . . . . . . . . . . . . . . . Page 4
(Catalog Page G-21)
D. Literature Sheet, Cast Stainless Steel Mud Valves . . . . . . . . . . . . Page 5
(Catalog Page G-25)
E. Product Drawing, Cast Iron Mud Valves, Non-Rising Stem . . . . . . . . Page 6
(Catalog Page G-22)
F. Product Drawing, Cast Iron Mud Valves, Rising Stem . . . . . . . . . . Page 7
(Catalog Page G-23)
G. Product Drawing, Cast Stainless Steel Mud Valves, Non-Rising Stem . . Page 8
(Catalog Page G-26)
H. Product Drawing, Cast Stainless Steel Mud Valves, Rising Stem . . . . Page 9
(Catalog Page G-27)
I. Position Indicator Installation in Floor (Optional) . . . . . . . . . . . . . Page 10
J. Position Indicator Installation over open tank (Optional) . . . . . . . . . Page 11
K. Operation of Mud Valves . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
L. Maintenance of Mud Valves . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
M. Storage of Mud Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
N. Trumbull Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
End of Table of Contents
TRUMBULL MUD VALVES
CAST IRON AND STAINLESS STEEL MODELS
RISING STEM AND NON-RISING STEM STYLES
Installation, Operation and Maintenance Manual
Table of Contents

Page 2 of 12
General information:
Trumbull Mud Valves are designed for use in draining large volumes of fluids by means of static head pressure.
They are particularly useful in reservoirs, and in tanks of water and wastewater treatment plants, for normal
operations, and when draining is required for maintenance or cleaning.
These valves are generally intended for low pressure applications; however, please consult Trumbull for special
requirements, such as high head pressure, or back pressure applications.
There are two different Mud Valve models available: Cast Iron, and Cast Stainless Steel. The standard Cast Iron
model uses brass seats in the body and gate; however, resilient seats are also available as an option. The cast
iron assembly features bronze stems and bronze threaded guides for use in submerged installations. The fasten-
ers are stainless steel to prevent corrosion during the life of the valve.
Cast Iron, Non-rising Stem Type Valve
The Cast Stainless Steel model uses SBR seats in the gate (other seat materials are available), and seals against
the stainless steel base flange. All metallic components of the Cast Stainless Steel mud valve are Type 316 stain-
less steel. The stem has a proprietary coating to eliminate galling and provide decades of service life.
Cast Stainless Steel, Non-rising Stem Type Valve
Trumbull mud valves can be furnished with extension stems of carbon or stainless steel. The extension stems can
then be operated thru a 2” operating nut in a floorbox (see illustration on page 4), or with an indicating floorstand.
Position Indicators are also available for installation in the floor (see page 10), or over an open tank (see page
11.)
When ordering extension stems, the material type must be specified along with either the overall length required,
or the distance from the face of the mud valve flange to the top of the handwheel, the 2” nut, or to the base of the
floorstand.

Page 3 of 12
Installation:
To insure proper operation of the Mud Valve, the following instructions must be followed:
1) The Mud Valve must be mounted to a mating floorpipe having a standard 125# flange.
The mounting flange should be recessed below the floor surface; the mud valve base seating surface
should be below the floor surface for complete draining of the fluid.
The flange must be installed level to provide vertical alignment for an extension stem.
Note: The Mud Valve flange is drilled in accordance with the ANSI 125# template on all sizes; however,
one hole under each Yoke leg is not available for fastening to the mating flange.
Fasteners for mounting are not furnished but can be ordered separately.
2) The area surrounding the mounting flange should be clean, and clear of obstructions.
Typical installation is shown on the following pages 4 and 5.
3) Prior to the installation of the mud valve, check the bottom of the valve flange for any adhering materials,
such as wood or packing debris, and for any visible damage.
4) Open the valve and clean the seating surfaces.
5) Operate the valve before installation to make sure it operates properly and was not damaged during ship-
ment or handling.
6) Do not use chains or other lifting devices on the stem or the bronze seats as this could deform the
threads, bend the stem, or damage the sealing surfaces.
7) For proper lifting, use a nylon strap of sufficient lifting capacity, and lift from under the yoke, as shown in
the figures below.
Proper lifting of mud valves, using a sling
Cast Iron Cast Stainless Steel
Non-rising Stem Type Non-rising Stem Type
8) Install the valve to the mounting flange using a full face, 1/8”, rubber flange gasket with the proper sized
bolts, or studs and nuts, for this size valve.
9) Tighten fasteners using a star tightening pattern. Uneven or over tightening could cause excessive leak-
age.
Note: Mud valves are not designed to be bubble-tight, and are not covered by an AWWA standard. Some
leakage may occur.
10) Check for obstacles between the gate and the yoke, then cycle the valve fully open and fully closed, to
make sure it opens and seals properly.
11) Complete the installation of related accessories such as extension stem, stem guides, floorstand or floor
box, as specified by the design engineer.

www.trumbull-mfg.com
Trumbull Manufacturing
3850 Hendricks Road, Youngstown, Ohio 44515
Phone:
330.270.7888
Toll Free:
877.504.1507
Fax:
330.392.0756
i
Trumbull Mud Valves are designed primarily for use in
settling tanks of water and wastewater treatment plants.
Their intended use is to drain tanks for maintenance or
cleaning. They are for low pressure applications only;
consult Trumbull for special requirements.
Mud Valves are furnished with a 2”square operating
nut; however, they can be supplied with optional
extension stem or handwheel (see page G-5).
This valve series uses bronze seats in the body and
gate (also available with resilient seat). The cast iron
body assembly features manganese bronze stems
and guides for use in submerged installations.
The fasteners are furnished in stainless steel to
prevent corrosion from years of submerged service.
Nuts, bolts and gaskets for mounting to floor pipe are
NOT furnished but can be ordered separately. Ductile
iron components are coated with Tnemec N140-1211
epoxy, per NSF 61.
See pages G-28 and G-29 for drawings.
Typical Mud Valve Installation
See page G-34 for installation options.
RISING
STEM
STYLE
NON-RISING
STEM STYLE
VALVE POSITION
INDICATORS
are recommended
on all Mud Valves
(see page F-7)


Size Item №Weight Item №Weight
3”367-1414 26.00 lbs. 367-1421 25.00 lbs.
4”367-1415 31.00 lbs. 367-1420 30.00 lbs.
6”367-1416 47.00 lbs. 367-1423 46.00 lbs.
8”367-1418 76.00 lbs. 367-1425 73.00 lbs.
10”367-1428 95.00 lbs. 367-1494 90.00 lbs.
12”367-1430 130.00 lbs. 367-1495 130.00 lbs.
14”367-1431 142.00 lbs.
Consult Trumbull
for availability.
16”367-1432 169.00 lbs.
18”367-1433 256.00 lbs.
20”367-1434 281.00 lbs.
24”367-1435 450.00 lbs.
Non-Rising Stem Rising Stem
The flange drilling is according to ANSI 125#STD.
on all sizes; however, one hole under each leg of the
yoke is not available for fastening to the mating flange.
Cast Iron Mud Valves
Certified to NSF-61 and NSF-372 in USA and Canada
© 2023 Trumbull Manufacturing
09/01/20 Page Revision Page G-27
Page 4of 12

www.trumbull-mfg.com
Trumbull Manufacturing
3850 Hendricks Road, Youngstown, Ohio 44515
Phone:
330.270.7888
Toll Free:
877.504.1507
Fax:
330.392.0756
i
Typical Mud Valve Installation
See page G-34 for installation options.
Valve Position Indicators
recommended on all Mud
Valves (see page F-9).
Size Item №Item №Item №Item №
3”1367-1349 367-1453 1367-1369
*367-1469
4”1367-1350 367-1454 1367-1370
*367-1470
6”1367-1351 367-1455 1367-1371
*367-1472
8”1367-1352 367-1456 1367-1372
*367-1474
10”1367-1353 367-1457 1367-1373
*367-1480
12”1367-1354 367-1458 1367-1374
*367-1481
14”1367-1355
*367-1459
**
16”1367-1356
*367-1460
18”1367-1357
*367-1461
20”1367-1358
*367-1462
24”1367-1359
*367-1463
Non-Rising Stem** Rising Stem**
Trumbull Mud Valves are designed primarily
for use in settling tanks of water and wastewater
treatment plants. Their intended use is to
drain tanks for maintenance or cleaning.
They are for low pressure applications only;
consult Trumbull for special requirements.
For applications requiring more corrosion
protection than cast iron, the yoke,
flange, guides and gate of these
Mud Valves are cast from Type 316
stainless steel. The one-piece, Type
316 stem has a permanently bonded
coating to protect against galling for
a lifetime of maintenance-free operation.
Cast components eliminate corrosion problems frequently
caused when stainless steel is welded. Castings are
passivated after machining, per ASTM A-967. Heavy-duty
design incorporates generous wall thicknesses and stem
diameters for maximum strength and corrosion protection.
Seat is SBR rubber for positive shutoff. Mechanically retained
seat is field-replaceable. Fasteners are Type 316 stainless.
See pages G-32 and G-33 for drawings.
Nuts, bolts and gaskets for mounting to floor pipe are
NOT furnished but can be ordered separately.
Cast 316 Stainless Steel Mud Valves
Heavy-Duty Design – Certified to NSF-61 and NSF-372 in USA and Canada
© 2023 Trumbull Manufacturing
09/01/20 Page Revision Page G-31
Domestic
Non-
Domestic Domestic
Non-
Domestic
* Consult Trumbull for availability.
** For product weights, see drawings on Pages G-32 & G-33.
Page 5of 12

Materials
19-3/4
17
12-3/8 14-1/2
B - Width at Yoke
Turns to Open
E - Flange Thickness
Bolt Dia.
Bolts in full Pattern*
Bolt Circle
Bolt Hole Dia.
C - Valve opening
1
17.0
1
7/8
12*
25-1/22017
7/81
3/4
8*
7/8
9.5
3/4
8*
11.75
7/8
3-1/2 4
21
7/8
7/8
4-1/16
1
14.25
12*
5
A - Overall height 13
Valve Size (Bore Dia.)
11-3/411-1/4
68
12-13/16
10 12
All Fasteners are Stainless Steel
Yoke
Gate
Seat, Gate
Base Flange (Body)
Guide, unthreaded
Guide, threaded
Operating Nut, 2" sq.
Stem
Seat, Base Flange
Part
7
5
3
4
1
8
9
2
Item
10-1/2
5/8
4
3/4
6.0
3/4
2-1/4
9-7/8
10
3
3728-1/2
24-5/8 30-5/8
1-7/8
29.5
1-3/8
1-1/4
20*
63
49
40
1-9/161-1/4
1
16*
1-1/8
21.25
1-1/8
20*
25.0
1-1/4
7-3/4 9-3/4
43
1-3/8
1-1/8
8-1/2
1-1/4
22.75
16*
12-1/4
23-1/219-3/416-3/4
16 20
18-3/4
18 24
6
Flange mounting gasket and fasteners are not included,
finished with NSF61 (TNEMEC 140-1211) coating.
*Two of the bolts in the bolt pattern are under the yoke feet
Standard 125 pound drilling template.
and must be ordered separately.
All cast iron surfaces, except machined surfaces, to be
22-3/4
1-1/8
18.75
1-1/8
1
12*
34
6-3/4
15
14
7
5
3
4
8
9
6
B - Overall Width at Yoke
C
Valve Opens
D - Basin depth in floor, min. 1-5/8 1-5/8 1-5/8 1-3/41-3/8 1-7/8 2-1/42-1/8 2-5/81-3/4
D
Base to Seat surface
E
Flange Thickness
Flange O.D.
Stem Diameter 1-1/21-1/8
11 13-1/2
1-1/4 1-3/8
16 197-1/2
1 1-3/41-1/2
23-1/2 27-1/2
1-3/41-3/4
25 32
1-1/2
21
and not used (except for 3").
Ductile Iron, ASTM A536 (65-45-12)
Gray Iron, ASTM A126 (B)
Gray Iron, ASTM A126 (B)
Bronze, ASTM B62; B584
Bronze, ASTM B62; B584
Bronze, ASTM B584
Bronze, ASTM B584
2
1
Weight, pounds 1307347 11026.3 453
280
167 243139
A
Overall Height
(Open and Closed)
Also available in Cast T316 Stainless Steel.
11
5/8
8*
13/16
7.5
3/4
2
9-1/2
10
4
1-3/8
9
1
27
(except 3")
Ductile Iron, ASTM A536 (65-45-12)
Ductile Iron, ASTM A536 (65-45-12)
Drawn to Scale
CAST IRON MUD VALVES
NON-RISING STEM TYPE 10/16/17
FCN
Drawn: Revision:
02/13/20
FCN
BYoungstown, Ohio
www.trumbull-mfg.com
© 2023 Trumbull Manufacturing
09/01/20 Page Revision Page G-28
Page 6of 12

19-3/4
17
12-3/8 14-1/2
B - Width at Yoke
Turns to Open
E - Flange Thickness
Bolt Dia.
Bolts in full Pattern*
Bolt Circle
Bolt Hole Dia.
C - Valve opening
1
17.0
1
7/8
12*
2520-1/217
7/81
3/4
8*
7/8
9.5
3/4
8*
11.75
7/8
3-3/8 4
20
7/8
7/8
4
1
14.25
12*
5
A - Overall height, closed 13
Valve Size (Bore Dia.)
11-3/411
68
12-3/4
10 12
11
5/8
8*
13/16
7.5
3/4
2-1/8
9-3/4
10
4
3728-1/2
24-5/8 30-5/8
1-7/8
29.5
1-3/8
1-1/4
20*
60
50
40
1-9/161-1/4
1
16*
1-1/8
21.25
1-1/8
20*
25.0
1-1/4
810
45
1-3/8
1-1/8
9
1-1/4
22.75
16*
12
23-1/219-3/416-3/4
16** 20**
18-3/4
18** 24**
A - Overall height, open 18 15/3/414-3/8 16-3/4 11-7/8 35-1/2
29-3/4
24-3/4 27-3/4
22-3/4
1-1/8
18.75
1-1/8
1
12*
35
7
14-1/2
14
21-1/2
D - Basin depth in floor, min. 1-5/8 1-5/8 1-5/8 1-3/41-3/8 1-7/8 2-1/42-1/8 2-5/81-3/4
Flange O.D.
Stem Diameter 1-1/21-1/8
11 13-1/2
1-1/4 1-3/8
16 199
1 1-3/41-1/2
23-1/2 27-1/2
1-3/41-3/4
25 32
1-1/2
21
Flange mounting gasket and fasteners are not included,
finished with NSF61 (TNEMEC 140-1211) coating.
*Two of the bolts in the bolt pattern are under the yoke feet
Standard 125 pound drilling template.
and must be ordered separately.
All cast iron surfaces, except machined surfaces, to be
5
4
1
8
9
6
B - Overall Width at Yoke
C
Valve Opens D
Base to Seat surface
E
Flange Thickness
and not used.
3
2
7
Weight, pounds 1307346 11030 140 165 240 280 450
A
Overall Height
Open
in the Rising Stem configuration.
** Consult Trumbull on the availability of 16" and larger sizes
Also available in Cast T316 Stainless Steel.
10-1/2
5/8
4
3/4
6.0
3/4
2-1/4
9-3/4
10
3
12
1-3/8
7-1/2
1
26.3
(except 3")
Materials
All Fasteners are Stainless Steel
Yoke
Gate
Seat, Gate
Base Flange (Body)
Guide, unthreaded
Guide, threaded
Operating Nut, 2" sq.
Stem
Seat, Base Flange
Part
7
5
3
4
1
8
9
2
Item
6Ductile Iron, ASTM A536 (65-45-12)
Gray Iron, ASTM A126 (B)
Gray Iron, ASTM A126 (B)
Bronze, ASTM B62; B584
Bronze, ASTM B62; B584
Bronze, ASTM B584
Bronze, ASTM B584
Ductile Iron, ASTM A536 (65-45-12)
Ductile Iron, ASTM A536 (65-45-12)
Drawn to Scale
CAST IRON MUD VALVES
RISING STEM TYPE 10/16/17
FCN
Drawn: Revision:
02/13/20
FCN
BYoungstown, Ohio
www.trumbull-mfg.com
© 2023 Trumbull Manufacturing
09/01/20 Page Revision Page G-29
Page 7of 12

All items, except for the Seal and the sealing washers are Type 316 Stainless Steel.
Seal and sealing washers are SBR.
All Fasteners are Stainless Steel, Type 316, ASTM A193, Grade B
Flange mounting gasket and fasteners are not included, and must be ordered separately.
* Standard 125 pound drilling template, with two holes covered by the Yoke (except for 3").
Stem is coated and greased to prevent galling.
Sizes 3" thru 16"
Sizes 18" thru 24"
Part Description
1
2
3
4
5
6
7
8
9
10 2" Square Nut
Yoke Cylinder (18"+)
Base Flange (Body)
Yoke
Gate
Seat
Seat Retainer
Stem
Guide, Plain
Spring Pin
4
Valve Size (Bore Dia.) 6 8 10 12
1-1/4
Stem Diameter 1-1/4
Bolt / Stud Size
C - Valve opening
Flange O.D.
Bolt Hole Dia.
Bolt Circle Diameter
1-3/4
5/8 3/4
7.50
3/4
9
9.50
7/8
2-3/4
11
A - Overall height
B - Width at Yoke 10-1/4 12-5/8
1-1/21-1/2 1-1/2
3/4 7/8
11.75
7/8
13-1/2
3-1/2
14.25
1
16
4-3/4
7/8
17.00
1
6
19
15-1/8 17-3/8 19
Weight, pounds 24-1/2 33-1/2 48 65 88
810-1/2 12-1/2 14-1/2 17
16 18 20
1-3/41-1/2 1-3/4
11-1/8
21.25
1-1/8
23-1/2
7-1/2
22.75
1-1/4
25
8-1/4
1-1/8
25.00
1-1/4
9-1/4
27-1/2
25-3/4 27-3/4 27-1/2
142 186 206
21-1/4 23 25-3/4
Bolts in full Pattern* 8881212 161620
Basin depth in floor for complete draining, 1" minimum.
D - Flange thickness 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4
1
3
45
6
7
8
9
10
1
3
4
2
6
9
7
10
Turns to Open 9 15-1/2 20 26 30 20-1/2 23 48-1/2
24
1-3/4
1-1/4
29.5
1-3/8
12
32
32
230
34-5/8
20
3/4
60
2
5
3
1-1/4
1-1/2
5/8
6.00
3/4
7-1/2
8
19-1/2
9
4
3/4
7
14
1-1/2
1
18.75
1-1/8
7-3/8
21.0
25-3/4
125
23
12
3/4
37
A
Overall Height
(Open and Closed)
A
Overall Height
(Open and Closed)
C
Valve Opens
C - Valve Opens
D
Flange Thickness
D
Flange Thickness
B - Overall Width at Yoke
B - Overall Width at Yoke
Sealing washer
shown enlarged
Seat retainer fasteners
typical, all valves
Drawn to Scale 07/24/07
FCN
Drawn: Revision:
02/07/20
FCN
FYoungstown, Ohio
www.trumbull-mfg.com
CAST T316 SS MUD VALVES
NON-RISING STEM TYPE
© 2023 Trumbull Manufacturing
09/01/20 Page Revision Page G-32
Page 8of 12

All items, except for the Seal and the sealing washers are Type 316 Stainless Steel.
Seal and sealing washers are SBR.
All Fasteners are Stainless Steel, Type 316, ASTM A193, Grade B
Flange mounting gasket and fasteners are not included, and must be ordered separately.
Standard 125 pound drilling template, with two holes covered by the Yoke.
Stem is coated and greased to prevent galling.
9
Basin depth in floor for complete draining, 1" minimum.
1
2
3
4
5
6
8
7
10
Consult Trumbull on the availability of 16" and larger sizes
in the Rising Stem configuration.
shown enlarged
Seat retainer fasteners
Sealing washer
typical, all valves
11-1/2 16 19-1/4 22-3/4 28-1/2
2-1/4 5 7 8-1/4 11-1/2
25 34 48 59 78
8-3/4 10-1/2 12-1/2 14 17
27 28
910
142
23 18 18
13-1/2 26-1/2 30-1/2 36-1/2 50-1/2 45 50
10-1/2
1-1/2
19-1/2
9
7
4
Valve Size (Bore Dia.) 6 8 10 12
1-1/4Stem Diameter 1-1/4
Bolt / Stud Size
C - Valve opening
Flange O.D.
Bolt Hole Dia.
Bolt Circle Diameter
5/8 3/4
7.50
3/4
9
9.50
7/8
11
B - Width at Yoke 10-1/4 12-5/8
1-1/21-1/2 1-1/2
3/4 7/8
11.75
7/8
13-1/2
14.25
1
16
7/8
17.00
1
19
15-1/8 17-3/8 19
Weight, pounds
16 18 20
1-3/41-1/2 1-3/4
11-1/8
21.25
1-1/8
23-1/2
22.75
1-1/4
25
1-1/8
25.00
1-1/4
27-1/2
25-3/4 27-3/4 27-1/2
Bolts in full Pattern* 8881212 161620
D - Flange thickness 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4
Turns to Open
24
1-3/4
1-1/4
29.5
1-3/8
32
32
20
3/4
3
1-1/4
5/8
6.00
3/4
7-1/2
8
4
3/4
14
1-1/2
1
18.75
1-1/8
21.0
25-3/4
12
3/4
A - Overall height, closed
A - Overall height, open
23
3939
1616
8080
142 155 164 218
60
12
35
23
B - Overall Width at Yoke
D - Flange Thickness
C
Valve
Opens
A
Overall Height
Closed
Drawn to Scale
CAST T316SS MUD VALVES
RISING STEM TYPE 10/16/17
FCN
Drawn: Revision:
03/19/20
NJC
CYoungstown, Ohio
www.trumbull-mfg.com
Part Description
1
2
3
4
5
6
7
Base Flange (Body)
Yoke
Gate
Seat
Seat Retainer
Stem
8
9
10
2" Square Nut
Guide, Threaded
Guide, Unthreaded
Coil Type Spring Pin
OPEN CLOSED
© 2023 Trumbull Manufacturing
09/01/20 Page Revision Page G-33
Page 9of 12

www.trumbull-mfg.com
Trumbull Manufacturing
3850 Hendricks Road, Youngstown, Ohio 44515
Phone:
330.270.7888
Toll Free:
877.504.1507
Fax:
330.392.0756
Ordering Instructions
1. Specify direction of open (open left or open right)
2. Model required (available in 57, 275 or 870 turns, shown below)
3. Extension Stem required
a. Length required
b. Round (maximum OD of 1.75”), 1-1/4”square, or
round x square stem (see reverse for details)
c. Carbon steel or stainless steel
4. Housing Adapter - Floor Box style
a. Cast iron housing (unsealed), see page F-11
b. Carbon steel or stainless steel (sealed), see page G-13
Model
Number Item №Item №Item №Item №
57T 367-9394 367-9393 367-9404 367-9403
275T 367-9396 367-9395 367-9406 367-9405
870T 367-9400 367-9399 367-9410 367-9409
Open Left Open Right Open Left Open Right
Square Ext. Stem Round Ext. Stem
POSITION
INDICATOR
•Eliminates broken
valve stems caused
by over-opening
or over-closing
•Field-adjustable
for any number
of turns within
the range of
each model
•Constructed
of heavy-duty,
non-corrosive
DuPont™ Delrin®polymer,
providing high-impact
resistance even in cold climates
•Double O-ring seals keep out water and dirt
•Third-party tested to over 1 million revolutions
•Provided with stainless steel hardware
•Also available w/Wall Bracket for mounting to tank walls (pages F-9
to F-10), and in Valve Boxes for buried service (pages F-1 to F-6)
Valve Position Indicators
Installation in Floor
© 2023 Trumbull Manufacturing
09/01/20 Page Revision Page F-7
US Patent No.'s 8,550,115 / 9,347,583 / 10,066,760
i
Page 10of 12

www.trumbull-mfg.com
Trumbull Manufacturing
3850 Hendricks Road, Youngstown, Ohio 44515
Phone:
330.270.7888
Toll Free:
877.504.1507
Fax:
330.392.0756
Ordering Instructions
WALL BRACKET
DUCTILE IRON
Item No. 367-2450
CAST 316 STAINLESS
Item No. 367-2460
•Eliminates
broken valve
stems caused
by over-opening
or over-closing
•Field-adjustable for
any number of turns
within the range of each model
•Constructed of heavy-duty, non-corrosive DuPont™ Delrin®
polymer, providing high-impact resistance even in cold climates
•Double O-ring seals keep out water and dirt
•Third-party tested to over 1 million revolutions
•Provided with stainless steel hardware
•Also available for use in the floor (pages F-7 to F-8),
and in Valve Boxes for buried service (pages F-1 to F-6)
1. Specify direction of open (open left or open right)
2. Model required (available in 57, 275 or 870 turns)
3. Extension Stem required
a. Length required
b. Round (maximum OD of 1.75”) see next
page for details
c. Carbon steel or stainless steel
Model
Number
Number
of Turns Item №Item №
57T 0 - 57 367-9404 367-9403
275T 0 - 275 367-9406 367-9405
870T 0 - 870 367-9410 367-9409
Open Left Open Right
Valve Position Indicators
Installation with Wall Bracket
© 2023 Trumbull Manufacturing
09/01/20 Page Revision Page F-9
US Patent No.'s 8,550,115 / 9,347,583 / 10,066,760
i
Page 11of 12

Page 12 of 12
Storage before installation:
There are no special requirements for storage of these mud valves; their intended use can be more severe than
environmental conditions.
However, the valves should be handled with proper care and attention during shipment, handling, and storage to
prevent physical damage, especially from contact with material handling equipment.
Operation and Maintenance Precautions during freezing weather:
Although it is unlikely a tank would be drained during freezing conditions, proper precautions must be observed
during these operations, as water can be retained in the stem protector cavity of the Gate when the valve is
opened after being submerged.
By closing the valve after the tank is drained, air is drawn into the stem protector and forms a cushion. This air
cushion prevents freezing damage to the stem protector.
Always close the valve after the tank has been emptied, if the valve will be subjected to freezing temperatures,
either during operation, or for maintenance.
Operation:
Trumbull mud valves are designed to open left, by turning the stem counterclockwise; they will seat by rotating the
stem in a clockwise rotation.
The mud valve is manufactured to seal with minimum torque.
If the valve does not seal with 35 foot pounds of torque, inspect for obstructions on the seating surfaces.
Using excess closing torque with an obstruction or debris on the seats will not seal the valve; instead it may cause
damage to the seating surfaces. Position Indicators are recommended on the mud valves to avoid over-torquing
(from opening or closing while the gate is obstructed), causing damage to the seats or stems.
Maintenance:
Trumbull mud valves are designed to require very little maintenance.
When the mud valve is available for servicing, the following measures will help to assure trouble-free perfor-
mance.
Clean the valve by pressure washing it to remove any debris.
Wipe the seating surfaces with a clean rag, and allow the valve to dry, by natural or forced
warm air.
Remove all the debris from the area around the valve.
Once the valve is dry inspect the seating surfaces for condition and damage.
Inspect all the fasteners to insure they are tight; retighten if necessary.
Lubricate the stem (a food grade lubricant may be required by the application.)
Loctite 82328 SuperLube is used on all of our stainless steel mud valves.
Document the service. Include a description of inspection observations, all work that was performed,
and recommended follow-up actions.
No spare parts are required for maintenance; replacement parts are available for damaged valves.
Trumbull Manufacturing Resources:
For any questions, comments, or concerns, please contact our people at the following numbers:
Sales and Manufacturing Scott Greaver 330-393-1291
Quality Assurance Dwayne Hill 330-392-1353
Engineering Craig Newmeyer 330-799-3333
revised: Feb. 1, 2013