Kraissl Transfer Valve / Diverter Valve

Transfer Valve / Diverter Valve - for Industrial Process

MODEL 72AAF(H)S(S)SERIES

CAST CARBON OR STAINLESS STEEL FLANGED PORTS - PRESSURE RANGE 200 TO 3600 PSIG & HIGHER
U.S. Patent No.3,567.181

PURPOSE
Kraissl Transfer Valves are used to "parallel" or duplex two pieces of pipeline equipment in continuous flow without shut off of either one. Examples include duplexing of two heat exchangers, filters or tanks. These rugged units are time tested for many years in a wide variety of fluid applications.

APPLICATION
Transfer valves are available in 3/4 through 8 inch sizes in ANSI flange classes 150, 300, 400, 600, 900,1500 and higher. Special ring joint flanges can also be furnished. They provide a simple, cost effective way to duplex flow equipment for applications where continuous flow must be maintained, with no flow interruption for down-side servicing.

DESIGN SPECIFICATIONS
Model 72AAF(H)S series transfer valves provide a consistent design for many sizes and pressure ratings with straight through alignment of the single inlet and outlet ports. Other models with same-side inlet and outlet ports are also available.

These transfer valves are furnished in both standard and high pressure models. NPT and weld-end models are also available. Internal channels are 100% full-flow, having the same cross-sectional area as the equivalent pipe size.

Materials of construction include cast carbon or stainless steel bodies and covers. Valve plugs are of stainless steel, bronze or cast iron. Special valve plugs can be furnished in other materials.

The valve handle guard indicates the side in use. The standard valve handle swings over the inlet port. Special reverse valve handles that swing over the outlet on flanged models can also be furnished. Drain plugs are provided in the valve chamber. An adjustable locking flange holds the valve plug on its seat on standard models. An optional lifting jack can be provided to lift the tapered valve plug off its seat for ease in valve turning in rough service on models not normally furnished with one. The lifting jack is standard on 6" and 8" sizes and all flanged units having a stainless steel valve plug. There are no internal linkages involved. A separate external gland is provided to allow easy access to stem packing without complete disassembly, even while in service.

The rugged, one-piece, all-cast valve housing construction avoids weld failures and potential non-uniformity of other fabricated designs.

Each valve is tested and serial numbered for accountability and traceability. The test results are provided with each valve. Special tests can also be arranged when specified.

ADJUSTABLE, TAPERED VALVE PLUG
The tapered valve plug design provides inherent compensation for wear, temperature changes and other operating variations. Metal to metal contact of sealing surfaces prolong the life of the valve, even in rough service. No special seals or seats are necessary to restore Kraissl valves to their original condition. Optional surface treatments can be furnished on valve plugs to extend life and improve sealing characteristics.

» Model 72AAF(H) Brochure
(PDF file)

FEATURES
1 - Adjustable locking flange establishes valve clearance.
2 - Independent gland adjustment for external packing access.
3 - Tapered, all-metal valve plug for durability & renewability.
4 - Continuous flow without changeover interruption.
5 - Drain connection on valve chamber.
6 - Units individually tested.
7 - Handle indicates side in use.
8 - Optional gage taps.
9 - Optional lifting jack.
10 - Optional valve plug coatings.

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

KRAISSL TRANSFER VALVES MODEL 72AAF(H)S(S) SERIES
SIZES, RATINGS AND DIMENSIONS

DESIGNED FOR CONTINUOUS FLOW.
PORT INTERCONNECTIONS:
IN POSITION SHOWN - 1 & 2, 3 & 4
IN OTHER POSITION - 1 & 2', 3' & 4
 
TABLE OF DIMENSIONS - INCHES
CAD
Files
CATalog
NAVigator
MODEL
SIZE
FLG.
DIA.
B.C.
DIA.
# BOLT
HOLES
BOLT
HOLE
R.F.
DIA.
MIN. FLG.*
THICK.
APPROX.
WGT.,LB.
A**
B
C
+1/8-0
D
E
+1/8-0
F
G
ANSI CLASS 150 FLANGES - 275 PSIG MAX. W.P.***
72-33AAFS
1"
4
3 1/8
4
5/8
2
3/8
50
12 7/8
6.25
8.5
5.25
9.25
1
5 1/8
72-37AAFS
1 "
5
3 7/8
4
5/8
2 7/8
1/2
55
14.5
7 7/8
9 3/8
4 15/16
10
1
6 3/8
72-39AAFS
2"
6
4.75
4
3/4
3 5/8
9/16
90
16 3/8
9 5/16
12
6.25
12
7/16
6.75
72-41AAFS
2.5"
7
5.5
4
3/4
4 1/8
5/8
120
17 7/8
10 13/16
12 5/8
6.5
13
7/16
7.75
72-43AAFS
3"
7.5
6
4
3/4
5
11/16
141
18 7/16
11 3/8
12.5
6 7/8
14
1/8
7.75
72-47AAFS
4"
9
7.5
8
3/4
6 3/16
7/8
250
19.75
12 1/16
15 5/8
9
21
2 11/16
10.25
72-51AAFS
6"
11
9.5
8
7/8
8.5
15/16
510
29 3/8
12.5
24
12
26
4.75
11.5
72-53AAFS
8"
13.5
11.75
8
7/8
10 5/8
1 1/16
1300
36 7/8
15 1/8
32.5
15.5
30.5
7 3/8
14
 
ANSI CLASS 300 FLANGES - 720 PSIG MAX. W.P.***
72-33AAFHS-300
1"
4 7/8
3.5
4
3/4
2
5/8
70
1303/16
6 9/16
8 1/2
5 1/4
9 1/4
1
5 1/8
72-37AAFHS-300
1 1/2"
6 1/8
4.5
4
7/8
2 7/8
3/4
75
15 1/16
8 7/16
9 3/8
4 15/16
10
1
6 3/8
72-39AAFHS-300
2"
6.5
5
8
3/4
3 5/8
13/16
110
16 5/8
9 9/16
12
6 1/4
12
7/16
6 3/4
72-41AAFHS-300
2.5"
7.5
5 7/8
8
7/8
4 1/8
15/16
145
18 1/8
11 1/16
12 5/8
6 1/2
13
7/16
7 3/4
72-43AAFHS-300
3"
8.25
6 5/8
8
7/8
5
1 1/16
170
19 3/16
12 1/8
12 1/2
6 7/8
15
1/2
8 1/2
72-47AAFHS-300
4"
10
7 7/8
8
7/8
6 13/16
1 3/16
295
20 1/4
12 9/16
15 5/8
9
21
2 11/16
10 1/4
72-51AAFHS-300
6"
12.5
9.5
12
7/8
8.5
1 3/8
705
30
14
24
12
26
5
12 3/4
 
ANSI CLASS 600 FLANGES - 1440 PSIG MAX. W.P.***
72-33AAFHS-600
1"
4 7/8
3 1/2
4
3/4
2
11/16
75
15 1/8
8 1/2
10 3/8
5 5/8
11
5/16
6 3/8
72-37AAFHS-600
1 1/2"
6 1/8
4 1/2
4
7/8
2 7/8
7/8
80
15 3/4
9 1/8
10 3/8
5 5/8
11
5/16
6 3/8
72-39AAFHS-600
2"
6 1/2
5
8
3/4
3 5/8
1
200
18 1/4
11 7/16
16 3/8
8 5/8
17 1/4
9/16
8 3/4
72-43AAFHS-600
3"
8 1/4
6 5/8
8
7/8
5
1 1/4
292
20
12 3/4
15 3/4
8 1/4
16 1/2
0
8 1/2
ANSI CLASS 1500 FLANGES - 3600 PSIG MAX. W.P.***
72-37AAFHS-1500
1 1/2"
7
4 7/8
4
1 1/8
2 7/8
1 1/4
117
16 3/16
9 9/16
11 1/8
6
11 3/4
5/16
6 3/8
72-39AAFHS-1500
2"
8 1/2
6 1/2
8
1
3 5/8
1 1/2
290
19 1/4
12 7/16
16 3/8
8 5/8
17 1/4
9/16
8 3/4
72-43AAFHS-1500
3"
10 1/2
8
8
1 1/8
5
1 7/8
_
23 1/2
16
17 3/8
9 1/8
18
0
10 3/4
 
ANSI CLASS 2500 FLANGES - 6000 PSIG MAX. W.P.***
72-37AAFHS-2500
1 1/2"
8
5 3/4
4
1 1/4
4 1/2
1 3/4
350
21 5/8
8 3/4
15 1/2
7 3/4
17
3 1/2
8 1/4
72-39AAFHS-2500
2"
9 1/4
6 3/4
8
1 1/8
5 1/4
2
_
22 1/4
9 3/4
19 5/8
9 5/8
23
4 3/8
9 1/2
Dimensions are in inches and subject to casting and production variations.
* Plus 1/16" R.F. on Class 150 and 300 flanges and 1/4" R.F. on higher pressure ratings. 5/16" R.F. on Class 2500 R.J., 1 1/2" and 2" sizes.
** Add 1 1/2" to "A" dimension if unit is furnished with lifting jack thru 4" size. On 6" and 8", lifting jack is included and handle length is 14".
***Material Group 2.1 and 2.2 @ 100 degrees F (ANSI B16.5). Class 900 and 1500 flange dimensions are the same through 2 1/2" sizes.
 
 
Copyright © 2008 ~ The Kraissl Company - Hackensack, NJ — American Manufacturer of Industrial/Commercial Strainers, Filters, Valves & Pumps

Transfer Valve / Diverter Valve for Industrial Process
Transfer Valve ~ Diverter Valve ~ Duplex 3-Way Valve ~
Six-Port Valve ~ Tank Selector Valve ~ Valve Plug