SIMPLEX STRAINER / FILTER - for Industrial Process |
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MODEL 72 & 72H SERIES
PRESSURE RANGE 200 TO 600 PSIG
PURPOSE
Kraissl pipeline strainers and filters protect pumps, nozzles, valves, heat exchangers and other expensive pipeline equipment from harmful flow contamination by catching dirt and debris.
APPLICATION
Kraissl Model 72 Series simplex strainers and filters provide a simple cost-effective way to separate particle impurities from fluid flow systems. Simplex models described in this bulletin are designed for applications where temporary interruption of a batch process can be permitted for basket cleaning. Where continuous, uninterrupted flow is required, our duplex strainers and filters described in other bulletins should be used. Kraissl strainers are listed by Underwriter's Laboratories, no. (U.L.) for fuel and flammable liquid service through size 4 inch, and are individually tested to U.L. quality control specifications. These cast pipeline strainers are designed and manufactured according to international standard A.S.T.M. F-1199 for use in marine and industrial applications.
DESIGN SPECIFICATIONS
Kraissl Model 72 series simplex strainers are supplied with quick-opening hand-clamp closure for pressure up to 200 psig in sizes up to six inch inclusive. Yoke closures permit easy access without use of tools. The basket is held on its seat by the cover against a spring basket handle. For higher pressure and larger sizes, our Model 72H series with stud and nut closures are available. Strainer baskets are fabricated from perforated metal. The smallest common perforation size is 1/64 inch in brass and 1/32 inch in stainless steel or monel. Filter baskets are manufactured with fine mesh wire cloth over supporting perforated metal. Optional patented double element baskets provide greatly increased separating area in the same space, and are easily disassembled for cleaning. Interchangeable strainer, filter and double element baskets provide a wide range of operating choices. Baskets are also available with magnet inserts to help eliminate fine metallic ferrous particles.Internal channels in the Model 72 and 72H Series are 100% full flow, having the same cross sectional area as the equivalent pipe size to avoid flow restriction. Normal flow is through the interior of the basket which contains the collected debris when lifted out for cleaning. Where reverse flow is desired, the fluid travels from the outside to the inside of the basket, and debris collects on the basket exterior.
Both threaded-NPT port and A.N.S.I. flanged port connections are available, as well as metric flanges and other special ports. Drain plugs are furnished on all sizes. Backwash and gage taps can be installed. Weld-end ports and steam-jacketed steel models can also be provided.
SIZES AND DIMENSIONS
MODEL 72 - STANDARD PRESSURE SERIES YOKE CLOSURE |
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» 72 &72H Brochure
(PDF file) |
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FEATURES
1. Hand clamp requires no tools on standard pressure models.
2. Top access to basket for easy cleaning.
3. Threaded, flanged, weld-end, or special ports available.
4. Drain connection on basket chamber.
5. Interchangeable, low cost strainer, filter and double element baskets.
6. Bodies individually pressure tested to U.L. specifications.
7. Spring handle holds basket on seat.

OTHER PRODUCTS
Our product lines of cast iron, bronze, aluminum, steel and stainless steel simplex and duplex strainers and filters, including flanged, NPT and weld-end models are covered in separate bulletins. Units can also be furnished in other special metals and higher pressure and temperature ratings |
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Model 72 -
Threaded - NPT Ports - 200 PSIG Max. Pressure |
CAD
OnLine |
CAST
IRON |
CAST
STEEL |
STAINLESS
STEEL |
BRONZE |
PIPE
SIZE |
A |
B |
C |
D |
NET
WT
LBS |
|
72-1 |
72-1S |
72-1SS |
72-2 |
3/8 |
7 3/16 |
4 9/16 |
3 13/16 |
3 1/2 |
4 |
|
72-3 |
72-3S |
72-3SS |
72-4 |
1/2 |
7 3/16 |
4 9/16 |
3 13/16 |
3 1/2 |
4 |
|
72-5 |
72-5S |
72-5SS |
72-6 |
3/4 |
9 5/8 |
5 11/16 |
5 3/8 |
5 |
8 |
|
72-7 |
72-7S |
72-7SS |
72-8 |
1 |
9 5/8 |
5 11/16 |
5 3/8 |
5 |
8 |
|
72-9 |
72-9S |
72-9SS |
72-10 |
1 1/4 |
10 1/2 |
5 15/16 |
7 |
5 7/8 |
15 |
|
72-11 |
72-11S |
72-11SS |
72-12 |
1 1/2 |
12 |
7 7/16 |
7 |
5 7/8 |
16 |
|
72-13 |
72-13S |
72-13SS |
72-14 |
2 |
13 3/4 |
7 13/16 |
9 |
8 5/8 |
34 |
|
72-15 |
-- |
-- |
72-16 |
2 1/2 |
15 9/16 |
9 5/8 |
11 1/4 |
9 5/8 |
51 |
|
72-15L |
72-15LS |
72-15LSS |
72-16L |
2 1/2 |
16 |
10 5/16 |
9 1/4 |
8 5/8 |
42 |
|
72-17L |
72-17LS |
72-17LSS |
72-18L |
3 |
17 9/16 |
11 1/2 |
11 1/4 |
8 5/8 |
50 |
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Model 72 -
Flanged Ports - 200 PSIG Max. Pressure |
CAD
OnLine |
CAST
IRON |
CAST
STEEL |
STAINLESS
STEEL |
BRONZE |
PIPE
SIZE |
A |
B |
C |
D |
NET
WT
LBS |
|
72-7F |
72-7FS |
72-7FSS |
72-8F |
1 |
9 5/8 |
5 11/16 |
7 1/4 |
5 |
11 |
|
72-11F |
72-11FS |
72-11FSS |
72-12F |
1 1/2 |
12 |
7 7/16 |
8 3/8 |
5 7/8 |
21 |
|
72-13F |
72-13FS |
72-13FSS |
72-14F |
2 |
13 3/4 |
7 13/16 |
10 1/8 |
8 5/8 |
39 |
|
72-15FL |
72-15FLS |
72-15FLSS |
72-16FL |
2 1/2 |
16 |
10 5/16 |
11 |
8 5/8 |
57 |
|
72-15F |
-- |
-- |
-- |
2 1/2 |
15 9/16 |
9 5/8 |
13 |
9 5/8 |
66 |
|
72-17FL |
72-17FLS |
72-17FLSS |
72-18FL |
3 |
17 9/16 |
11 1/2 |
12 5/8 |
8 5/8 |
67 |
|
72-17F |
-- |
-- |
-- |
3 |
16 1/4 |
10 1/8 |
17 3/4 |
9 5/8 |
81 |
|
72-21F |
72-21FS |
72-21FSS |
72-22F |
4 |
21 3/8 |
14 7/8 |
17 3/4 |
9 5/8 |
115 |
|
72-23F |
72-23FS |
72-23FSS |
72-24F |
5 |
22 |
13 1/4 |
18 3/4 |
10 7/8 |
172 |
|
72-25F |
72-25FS |
72-25FSS |
72-26F |
6 |
26 |
16 1/2 |
19 1/2 |
11 |
220 |
|
72-27FH |
72-27FHS |
72-27FHSS |
72-28FH |
8 |
34 |
21 |
25 3/8 |
14 1/2 |
615 |
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MODEL 72H - HIGH PRESSURE SERIES STUD AND NUT CLOSURE |
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| |
Model 72H - Cast
Iron - 400 PSIG Max. Pressure |
CAD
OnLine |
CATalog
NAVigator |
CAST
IRON
|
PIPE
SIZE
|
PORT
|
A
|
B
|
C
|
D
|
NET
WT
LBS
|
|
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72-1H
|
3/8
|
THREADED -
NPT
|
5 7/8
|
4 9/16
|
3 13/16
|
3 3/4
|
4
|
|
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72-3H
|
1/2
|
THREADED -
NPT
|
5 7/8
|
4 9/16
|
3 13/16
|
3 3/4
|
4
|
|
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72-5H
|
3/4
|
THREADED -
NPT
|
17
15/16
|
5 13/16
|
5 3/8
|
4 13/16
|
13
|
|
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72-7H
|
1
|
THREADED -
NPT
|
17
15/16
|
5 13/16
|
5 3/8
|
4 13/16
|
13
|
|
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72-9H
|
1 1/4
|
THREADED -
NPT
|
9 13/16
|
7 9/16
|
7
|
5 3/8
|
16
|
|
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72-11H
|
1 1/2
|
THREADED -
NPT
|
9 13/16
|
7 9/16
|
7
|
5 3/8
|
16
|
|
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72-13H
|
2
|
THREADED -
NPT
|
11 1/8
|
7 15/16
|
9
|
6 13/16
|
34
|
|
|
72-15H
|
2 1/2
|
THREADED -
NPT
|
12
15/16
|
9 3/4
|
11 1/4
|
9
|
51
|
|
|
72-15FH
|
3
|
CLASS 250
FLANGED
|
14 1/4
|
10 1/8
|
17 3/4
|
9
|
94
|
|
|
72-21FH
|
4
|
CLASS 250
FLANGED
|
19 7/8
|
14 7/8
|
17 3/4
|
9
|
134
|
|
CAD
OnLine |
CATalog
NAVigator |
Model Series 72HS - Cast
Steel - 720 PSIG Max. Pressure |
|
|
72-1HS |
3/8 |
THREADED-NPT |
5 7/8 |
4 9/16 |
3 13/16 |
3 3/4 |
4 |
|
|
72-3HS |
1/2 |
THREADED-NPT |
5 7/8 |
4 9/16 |
3 13/16 |
3 3/4 |
4 |
|
|
72-5HS |
3/4 |
THREADED-NPT |
7 15/16 |
5 13/16 |
5 3/8 |
4 13/16 |
14 |
|
|
72-7HS |
1 |
THREADED-NPT |
7 15/16 |
5 13/16 |
5 3/8 |
4 13/16 |
14 |
|
|
72-9HS |
1 1/4 |
THREADED-NPT |
9 13/16 |
7 916 |
7 |
5 3/8 |
18 |
|
|
72-11HS |
1 1/2 |
THREADED-NPT |
9 13/16 |
7 9/16 |
7 |
5 3/8 |
18 |
|
|
72-13HS |
2 |
THREADED-NPT |
11 1/8 |
7 15/16 |
9 |
6 13/16 |
34 |
|
|
72-13FHS |
2 |
CLASS 300
FLANGED |
11 1/8 |
7 15/16 |
10 3/4 |
6 13/16 |
43 |
|
|
72-15HS |
2 1/2 |
THREADED -
NPT |
12
15/16 |
9 3/4 |
11 1/4 |
9 |
51 |
|
|
72-15FHS |
2 1/2 |
CLASS 300
FLANGED |
13 1/2 |
9 3/4 |
11 1/4 |
9 |
73 |
|
|
72-17FHS |
3 |
CLASS 300
FLANGED |
14 1/4 |
10 1/8 |
17 3/4 |
9 |
104 |
|
|
72-21FHS |
4 |
CLASS 300
FLANGED |
19 7/8 |
14 7/8 |
17 3/4 |
9 |
148 |
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ALL DIMENSIONS IN
INCHES, SUBJECT TO CASTING AND PRODUCTION
VARIATIONS |
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SINGLE ELEMENT BASKETS
The open area ratios of two common perforated metal sizes are given in this table. Strainer baskets are available in many other standard perforations and meshes. Basket materials include brass, stainless steel, carbon steel, monel, and other special alloys. |
BASKET
CAT.NO.
|
PIPE
SIZE
|
INTERNAL PIPE
AREA SQ.IN.
|
BASKET
O.D.
|
BASKET
LENGTH
|
TOTAL SCREEN
AREA SQ.IN.
|
OPEN SCREEN AREA
|
STRAINING RATIO
|
|
1/16*
|
1/32**
|
1/16*
|
1/32**
|
|
72-1 & 2
|
3/8
|
.191
|
1 1/2
|
2 7/8
|
15.3
|
6.1
|
4.3
|
31.9:1
|
22.5:1
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72-3 & 4
|
1/2
|
.304
|
1.1/2
|
2.7/8
|
15.3
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6.1
|
4.3
|
20.1:1
|
14.1:1
|
|
72-5 & 6
|
3/4
|
.533
|
1 15/16
|
3 15/16
|
26.6
|
10.8
|
7.5
|
20.3:1
|
14.1:1
|
|
72-7 & 8
|
1
|
.864
|
1 15/16
|
3 15/16
|
26.9
|
10.8
|
7.5
|
12.5:1
|
8.7:1
|
|
72-9 & 10
|
1.25
|
1.495
|
2 9/16
|
3.75
|
35.3
|
14.1
|
9.9
|
9.4:7
|
6.6:1
|
|
72-11 & 12
|
1.5
|
2.036
|
2 9/16
|
5
|
45.4
|
18.2
|
12.7
|
8.9:1
|
6.2:1
|
|
72-13 & 14
|
2
|
3.355
|
3.5
|
5 1/8
|
66.0
|
26.4
|
18.5
|
7.9:1
|
5.5:1
|
|
72-15
|
2.5
|
4.788
|
4 1/8
|
6.25
|
94.4
|
37.8
|
26.4
|
7.9:1
|
5.5:1
|
|
72-15L,FL,16L,FL
|
2.5
|
4.788
|
3.5
|
7
|
86.6
|
34.6
|
24.2
|
7.2:1
|
5.1:1
|
|
72-17F
|
3
|
7.393
|
4 1/8
|
6.75
|
101
|
40.4
|
28.3
|
5.5:1
|
3.8:1
|
|
72-17L,FL,18L,FL
|
3
|
7.393
|
3.5
|
8.5
|
103
|
41.2
|
28.8
|
5.6:1
|
3.9:1
|
|
72-21F & 22F
|
4
|
12.73
|
4 1/8
|
10.5
|
149
|
56.9
|
41.7
|
4.7:1
|
3.3:1
|
|
72-23 & 24F
|
5
|
20.01
|
6 7/8
|
9.25
|
237
|
94.8
|
66.4
|
4.7:1
|
3.3:1
|
|
72-25F & 26F
|
6
|
28.89
|
6 7/8
|
12
|
296
|
118
|
82.9
|
4.4:1
|
2.9:1
|
|
72-27F & 28F
|
8
|
50.03
|
9
|
16
|
516
|
206
|
144
|
4.1:1
|
2.9:1
|
| ALL DIMENSIONS IN INCHES, APPROXIMATE |
| * Perforated - Based on 40% open area ** Perforated - Based on 28% open area |
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DOUBLE ELEMENT BASKETS |
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These strainers can be supplied with our patented Double Element Baskets which are easily disassembled for cleaning and provide greater straining areas in the same housing. Double Element Baskets are listed by Underwriters Laboratories, Inc. for a variety of sizes.
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BASKET
CAT.NO.
|
PIPE
SIZE
|
INTERNAL PIPE
AREA SQ.IN.
|
BASKET
O.D.
|
BASKET
LENGTH
|
TOTAL SCREEN
AREA SQ.IN.
|
OPEN SCREEN AREA
|
STRAINING RATIO
|
|
1/16*
|
1/32**
|
1/16*
|
1/32**
|
|
72-7/1
|
1
|
.864
|
1 15/16
|
3 15/16
|
38.3
|
15.3
|
10.7
|
17.7:1
|
12.4:1
|
|
72-9/7
|
1.25
|
1.495
|
2 9/16
|
3.75
|
50.5
|
20.2
|
14.1
|
13.5:1
|
9.4:1
|
|
72-1 1/7
|
1.5
|
2.036
|
2 9/16
|
5
|
69.0
|
27.6
|
19.3
|
13.6:1
|
9.5:1
|
|
72-13/7
|
2
|
3.355
|
3.5
|
5.125
|
84.9
|
34.0
|
23.8
|
10.1:1
|
7.1:1
|
|
72-15L7
|
2.5
|
4.788
|
3.5
|
7
|
115
|
46.0
|
32.2
|
9.6:1
|
6.7:1
|
|
72-15/7
|
2.5
|
4.788
|
4 1/8
|
6.25
|
121
|
48.4
|
33.9
|
10.1:1
|
7.1:1
|
|
72-17L/7
|
3
|
7.393
|
3.5
|
8.5
|
140
|
56.0
|
39.2
|
7.6:1
|
5.3:3
|
|
72-17 F11
|
3
|
7.393
|
4 1/8
|
6.75
|
141
|
56.4
|
39.5
|
7.6:1
|
5.3:3
|
|
72-21/11
|
4
|
12.73
|
4 1/8
|
10.5
|
220
|
88.0
|
61.6
|
6.9:1
|
4.8:1
|
|
72-23/15
|
5
|
20.01
|
6 15/16
|
9 1/8
|
300
|
120
|
84.0
|
6.0:1
|
4.2:1
|
|
72-25/15
|
6
|
28.89
|
6 15/16
|
11.5
|
386
|
154
|
108
|
5.3:1
|
3.7:1
|
|
72-53/15
|
8
|
50.03
|
9
|
16
|
649
|
260
|
182
|
5.2:1
|
3.6:1
|
| ALL DIMENSIONS IN INCHES, APPROXIMATE |
| * Perforated - Based on 40% open area ** Perforated - Based on 28% open area |
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Copyright
© 2008 ~ The Kraissl Company - Hackensack, NJ — American Manufacturer of Industrial/Commercial Strainers, Filters, Valves & Pumps |
Simplex Strainer & Filter — Model 72 & 72H
Pipeline Strainer ~ Basket Strainer ~ Process Strainer ~ Industrial Strainer
Pipeline Filter ~ Basket Filter ~ Process Filter ~ Industrial Filter
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