image of tank- mounted strainers

Tank-Mounted Strainers

img of a tank-mounted strainer A tank-mounted strainer (either suction or return) can be installed through a tank top by welding a standard bell reducer (coupling) over a hole cut in the top. A standpipe, threaded into the coupling, need be only long enough to stay below the lowest fluid level encountered. The strainer may be removed for servicing without draining the tank.

Flow Ezy tank-mounted strainers and diffusers install through the side wall, or through the tank top and into a standpipe. Either way, they can be removed through the hole in which they are mounted, and access to the tank interior is not necessary. They're made in three styles: for suction straining, return-line straining, or return-line diffusion. Diffusers have no wire cloth elements; their function is to reduce foaming, tank noise, need for baffling plates, and pump cavitation caused by flow disturbance at the pump inlet.

Strainer elements are offered in 30, 60, l00, or 200 mesh size. Bypass relief valves can be supplied, built in.

These products most commonly have a male NPT, to mount to the tank. A male SAE straightthread is also offered. Several methods of connecting fluid lines exist, the most common being into a female NPT. (A female SAE straight-thread is also offered.) Hose connections, either beaded or barbed, are available too.

There's a wide choice of materials of construction. The standard (and least costly) units have a cast iron bushing, steel support tube, and stainless steel wire cloth element. Also offered are models with forged steel bushings, or an all-welded, all stainless steel unit (no epoxy).

img of a tank-mounted strainer
img of a tank-mounted strainer

Dimensions

Select the desired specifications from the ordering table and build an ordering code number, as shown in this sample:

S
-
25
-
60
-
RV-5
STYLE
-
GPM
-
MESH
-
VALVE
STYLE
CONSTRUCTION
GPM
(FLOW CAPACITY)
MESH
(SCREEN SIZE)
VALVE
(OPTIONAL)
SUCTION S
SFS
SASW
Iron construction, metal support tube, epoxy bonded
Forged steel bushings, metal support tube, epoxy bonded
All-stainless steel, all welded (no epoxy)
4,5,10,15,25,50,100 30,60,100,200 RV-3
(3-psi bypass)
RV-5
(5-psi bypass)
ST Straight-thread steel bushing, metal tube, epoxy bonded 5,10,15,25
RETURN R
RFS
RASW
Iron bushings, metal support tube, epoxy bonded
Forged steel bushings, metal support tube, epoxy bonded
All-stainless steel, all welded (no epoxy)
5,10,15,25

19,33,54,94,200,462
30,60,100,200 RV-15
(15-psi
bypass)
RT Straight-thread steel bushing, metal tube, epoxy bonded 19,33,54,94
DIFFUSER D
DFS
DASW
Iron bushings, perforated metal, epoxy joint
Forged steel bushings, perforated metal, epoxy joint
All-stainless steel, all welded (no epoxy)
20,34,55,95,209,464 (No wire mesh
element)
N/A
DT Straight-thread steel bushing, perforated metal, epoxy joint 20,34,55,95

SUCTION (STYLE S)

FOR PIPE LINE CONNECTION

img of a tank-mounted strainer
img of a tank-mounted strainer
STYLE S(stock item)
STYLE SFS (Not stocked)
STYLE ST
(Not Stocked)
SCREEN
AREA (in2)
GPM A B C
(NPT)
D
(NPT)
E
(Approx.)
C
(SAE Thd.)
D
(SAE Thd.)
E
(Approx.)
34 5 4-1/4 1-1/32 1 1/2 1-1/16 1-5/16-12 3/4-16 1
65 10 6-3/4 1-11/32 1-1/4 3/4 1-1/4 1-5/8-12 1-1/16-12 1
86 15 7-3/16 1-21/32 1-1/2 1 1-5/16 1-7/8-12 1-5/16 1
125 25 8/4 2-1/32 2 1-1/4 1-5/16 2-1/2-12 1-5/8-12 1
260 50 8 2-31/32 3 2 1-3/4 3-3/8-12 2-1/2-12 1
315 100 9-5/8 4 4 3 1-3/4
img of a tank-mounted strainer
STYLE SASW
(Not stocked)
SCREEN
AREA (in2)
GPM A B C
(NPT)
D
(NPT)
E
(Approx.)
26 5 4-5/8 1-1/8 1 1/2 1-1/16
65 10 7-1/4 1-11/32 1-1/4 3/4 1-3/16
68 15 7-1/2 1-21/32 1-1/2 1 1-1/4
100 25 8-5/8 1-7/8 2 1-1/4 1-1/2
160 50 8-1/4 3-3/16 3 2 1-7/8
275 100 10 4 4 3 2-1/8

RETURN (STYLE R)

img of a tank-mounted strainer
img of a tank-mounted strainer
STYLE R(stock item)
STYLE RFS (Not stocked)
STYLE RT
(Not Stocked)
G SCREEN
AREA (in2)
GPM A B C
(NPT)
D
(NPT)
E
(Approx.)
C
(SAE Thd.)
D
(SAE Thd.)
E
(Approx.)
7/8 3/14 19 4-1/4 1-1/32 1 1/2 1-1/16 1-5/16-12 3/4-12 1
1 65 33 6-3/4 1-11/32 1-1/4 3/4 1-1/4 1-5/8-12 1-1/16-12 1
1-1/8 86 54 7-3/16 1-21/32 1-1/2 1 1-5/16 1-7/8-12 1-5/16-12 1
1-1/4 125 94 8-1/4 2-1/32 2 1-1/4 1-5/16 2-1/2-12 1-5/8-12 1
1-1/2 260 200 8 2-31/32 3 2 1-3/4 3-3/8-12 2-1/2-12 1
2 315 462 9-5/8 4 4 3 1-3/4
img of a tank-mounted strainer
STYLE RASW
(Not stocked)
SCREEN
AREA (in2)
GPM A B C
(NPT)
D
(NPT)
E
(Approx.)
26 19 4-5/8 7/8 1 1/2 1-1/16
65 33 7-1/4 1-1/8 1-1/2 1 1-1/4
68 54 7-1/2 1-3/8 1-1/2 1 1-1/4
100 94 8-5/8 1-5/8 2 1-1/4 1-1/2
160 200 8-1/4 2-7/8 3 2 1-7/8
275 462 10 4 3 2-1/8 2-1/8

DIFFUSER (STYLE D)

img of a tank-mounted strainer
img of a tank-mounted strainer
STYLE D(stock item)
STYLE DFS (Not stocked)
STYLE DT
(Not Stocked)
PERF. OPEN
AREA (in2)
GPM A B C
(NPT)
D
(NPT)
E
(Approx.)
C
(SAE Thd.)
D
(SAE Thd.)
E
(Approx.)
3.1 20 4-1/4 7/8 1 1/2 1-1/16 1-5/16-12 3/4-12 1
6.9 34 6-3/4 1-1/8 1-1/4 3/4 1-1/4 1-5/8-12 1-1/16-12 1
8.8 55 7-3/16 1-1/4 1-1/2 1 1-5/16 2-7/8-12 1-5/16-12 1
12.3 95 8-1/4 1-9/16 2 1-1/4 1-5/16 2-1/2-12 1-5/8-12 1
17 209 8 2-1/8 3 2 1-3/4 3-3/8-12 2-1/2-12 1
39 464 9-5/8 4 4 3 1-3/4
img of a tank-mounted strainer
STYLE DASW
(Not stocked)
PERF. OPEN
AREA (in2)
GPM A B C
(NPT)
D
(NPT)
E
(Approx.)
3.1 20 4-5/8 7/8 1 1/2 1-1/16
6.0 34 7-1/4 1-1/8 1-1/4 3/4 1-3/16
8.8 55 7-1/2 1-1/4 1-1/2 1 1-1/4
12.3 95 8-5/8 1-9/16 2 1-1/4 1-1/2
21.1 209 8-1/4 2-7/8 3 2 1-7/8
33.2 464 10 3-5/8 4 3 2-1/8

Select the desired specifications from the ordering table and build an ordering code number, as shown in this sample:

SHO
-
25
-
100
-
RV-3
STYLE
-
GPM
-
MESH
-
VALVE
STYLE
CONSTRUCTION
GPM
(FLOW CAPACITY)
MESH
(SCREEN SIZE)
VALVE
(OPTIONAL)
SUCTION SHO Steel bushing, metal support tube, epoxy bonded 5,10,15,25,50 30,60,100,200 RV-3
(3-psi bypass)
RV-5
(5-psi bypass)
RETURN RHO Steel bushing, metal support tube, epoxy bonded 19,33,54,94,200 30,60,100,200 RV-15
(15-psi
bypass)
DIFFUSER DHO Steel bushing, metal support tube, epoxy bonded 20,34,55,95 (No wire mesh
element)
N/A

FOR HOSE LINE CONNECTION

img of a tank-mounted strainer
img of a tank-mounted strainer showing suction
STYLE SHO
(Special, not stocked)
SCREEN
AREA (in2)
GPM A B C
(SAE Thd.)
D
(Hose ID)
E
(Approx.)
34 5 4-1/4 1-1/32 1-5/16-12 1/2 2-1/4
65 10 6-3/4 1-11/32 1-5/8-12 3/4 2-5/16
86 15 7-3/16 1-21/32 1-7/7-12 1 2-5/16
125 25 8/4 2-1/32 2-1/2-12 1-1/4 2-1/2
260 50 8 2-31/32 3-3/8-12 2 3
img of a tank-mounted strainer
img of a tank-mounted strainer showing return
STYLE RHO
(Special, Not stocked)
G SCREEN
AREA (in2)
GPM A B C
(SAE Thd.)
D
(HOSE ID)
E
(Approx.)
7/8 34 19 4-1/4 1-1/32 1 1/2 2-1/4
1 65 33 6-3/4 1-11/32 1-1/4 3/4 2-5/16
1-1/8 86 54 7-3/16 1-21/32 1-7/8-12 1 2-1/2
1-1/4 125 94 8-1/4 2-1/32 2-1/2-12 1-1/4 2-1/2
1-1/2 260 200 8 2-31/32 3-3/8-12 2 3
img of a tank-mounted strainer
img of a tank-mounted diffuser
STYLE DHO
(Special, not stocked)
PERFORATION
AREA (in2)
GPM A B C
(SAE Thd.)
D
(HOSE ID)
E
(Approx.)
3.1 20 4-1/4 7/8 1-5/16-12 1/2 2-1/4
6.9 34 6-3/4 1-1/8 1-5/8-12 3/4 2-5/16
8.8 55 7-3/16 1-1/4 1-7/8-12 1 2-5/16
12.3 95 8-1/4 1-9/16 2-1/2-12 1-1/4 2-1/2
weld-ring chart
WELD RING - ORDER SEPARATELY
THREAD SIZE MODEL NUMBER A B
1-1/16-12 8632-WR 2-1/4 1-3/8
1-5/16-12 ST-5-WR 2-3/8 1-11/16
1-5/8-12 ST-10-WR 2-11/16 2
1-7/8-12 ST-15-WR 3 2-1/4
2-1/2-12 ST-25-WR 3-1/2 2-5/8
2-1/2-12 ST-30-WR 3-1/2 2-5/8
3-3/8-12 ST-50-WR 4-5/8 3-5/8