Underdrain Components
swtwater.com Hubs for Steel and Composite Tanks
SWT Machined PVC Distributor Hubs
 
     
TECHNICAL SPECIFICATIONS
Max. Recommended Operating Temperature: 140°F (60°C)
Max. Recommended Operating Pressure: 150 psi
Material: PVC (standard); Other materials available include CPVC, Polypropylene, PVDF, Kynar, PTFE, Teflon
 
Standard Hub Drawing Type A Hub Drawing Type B Hub Drawing
STANDARD TYPE A TYPE B
 
TYPICAL MOUNTING CONFIGURATIONS
SWT Hub - Standard Bottom Mount SWT Hub - Standard Top Mount SWT HUB - Standard Side Mount SWT Hub - Type A Bottom Mount SWT Hub - Type B Top Mount SWT Hub - Type B Side Mount
STANDARD
BOTTOM
MOUNT		 STANDARD
TOP
MOUNT		 STANDARD
SIDE
MOUNT		 TYPE A
BOTTOM
MOUNT		 TYPE B
TOP
MOUNT		 TYPE B
SIDE
MOUNT
 
ORDERING INFORMATION
Part Number Matrix: SM – C (PS) (LS) (NL) (PP)
(PS) Piping Size
034 = 3/4 inch
1 = 1 inch
14 = 1-1/4 inch
15 = 1-1/2 inch
2 = 2 inch
25 = 2-1/2 inch
3 = 3 inch
4 = 4 inch
6 = 6 inch
8 = 8 inch
(LS) Lateral Ports Size
02 = 1/4 inch FNPT
03 = 3/8 inch FNPT
12 = 1/2 inch FNPT
34 = 3/4 inch FNPT
1 = 1 inch FNPT
14 = 1-1/4 inch FNPT
15 = 1-1/2 inch FNPT
2 = 2 inch FNPT
(NL) Number of Lateral Ports *
EXAMPLES:
4 = 4 Lateral Ports
8 = 8 Lateral Ports
16 = 16 Lateral Ports
(PP) Lateral Ports Pitch
None = Standard
A = Type A
B = Type B
* View recommendations.
EXAMPLES:
SM-C034024 is a standard style hub with 3/4 inch piping size and (4) 1/4 inch FNPT lateral ports.
SM-C2348A is a Type A style hub with 2 inch piping size and (8) 3/4 inch FNPT lateral ports.
SM-C61516B is a Type B style hub with 6 inch piping size and (16) 1-1/2 inch FNPT lateral ports.
 
 
3/4 INCH PIPING HUBS
Part Number Style Piping
Size
FNPT		 Lateral Ports Outside
Diameter		 Overall
Height
Size
FNPT		 Total
Number		 Number
Per Row
SM-C034024 Standard 3/4 inch 1/4 inch 4 1 Row 4 1-7/8 inch 1-3/4 inch
SM-034024A Type A 3/4 inch 1/4 inch 4 1 Row 4 1-7/8 inch 1-3/4 inch
SM-C034024B Type B 3/4 inch 1/4 inch 4 1 Row 4 1-7/8 inch 1-3/4 inch
 
1 INCH PIPING HUBS
Part Number Style Piping
Size
FNPT		 Lateral Ports Outside
Diameter		 Overall
Height
Size
FNPT		 Total
Number		 Number
Per Row
SM-C1124 Standard 1 inch 1/2 inch 4 1 Row 4 1-7/8 inch 2 inch
SM-C1124A Type A 1 inch 1/2 inch 4 1 Row 4 1-7/8 inch 2 inch
SM-C1124B Type B 1 inch 1/2 inch 4 1 Row 4 1-7/8 inch 2 inch
SM-C1344 Standard 1 inch 3/4 inch 4 1 Row 4 2-3/8 inch 2-1/8 inch
SM-C1344A Type A 1 inch 3/4 inch 4 1 Row 4 2-3/8 inch 2-1/8 inch
SM-C1344B Type B 1 inch 3/4 inch 4 1 Row 4 2-3/8 inch 2-1/8 inch
 
1-1/4 INCH PIPING HUBS
Part Number Style Piping
Size
FNPT		 Lateral Ports Outside
Diameter		 Overall
Height
Size
FNPT		 Total
Number		 Number
Per Row
SM-C14126 Standard 1-1/4 inch 1/2 inch 6 1 Row 6 3 inch 2-1/4 inch
SM-C14126A Type A 1-1/4 inch 1/2 inch 6 1 Row 6 3 inch 2-1/4 inch
SM-C14126B Type B 1-1/4 inch 1/2 inch 6 1 Row 6 3 inch 2-1/4 inch
SM-C14344 Standard 1-1/4 inch 3/4 inch 4 1 Row 4 3 inch 2-1/4 inch
SM-C14344A Type A 1-1/4 inch 3/4 inch 4 1 Row 4 3 inch 2-1/4 inch
SM-C14344B Type B 1-1/4 inch 3/4 inch 4 1 Row 4 3 inch 2-1/4 inch
 
1-1/2 INCH PIPING HUBS
Part Number Style Piping
Size
FNPT		 Lateral Ports Outside
Diameter		 Overall
Height
Size
FNPT		 Total
Number		 Number
Per Row
SM-C15128 Standard 1-1/2 inch 1/2 inch 8 1 Row 8 3 inch 2-1/4 inch
SM-C15128A Type A 1-1/2 inch 1/2 inch 8 1 Row 8 3 inch 2-1/4 inch
SM-C15128B Type B 1-1/2 inch 1/2 inch 8 1 Row 8 3 inch 2-1/4 inch
SM-C15346 Standard 1-1/2 inch 3/4 inch 6 1 Row 6 3 inch 2-1/4 inch
SM-C15346A Type A 1-1/2 inch 3/4 inch 6 1 Row 6 3 inch 2-1/4 inch
SM-C15346B Type B 1-1/2 inch 3/4 inch 6 1 Row 6 3 inch 2-1/4 inch
 
2 INCH PIPING HUBS
Part Number Style Piping
Size
FNPT		 Lateral Ports Outside
Diameter		 Overall
Height
Size
FNPT		 Total
Number		 Number
Per Row
SM-C2128A Type A 2 inch 1/2 inch 8 1 Row 8 3.8 inch 2-1/2 inch
SM-C2348 Standard 2 inch 3/4 inch 8 1 Row 8 4 inch 2-1/2 inch
SM-C2348A Type A 2 inch 3/4 inch 8 1 Row 8 4 inch 2-1/2 inch
SM-C2348B Type B 2 inch 3/4 inch 8 1 Row 8 4 inch 2-1/2 inch
SM-C23412A Type A 2 inch 3/4 inch 12 2 Rows 6 3-13/16 inch 3-1/2 inch
SM-C23416B Type B 2 inch 3/4 inch 16 2 Rows 8 4 inch 3-3/4 inch
SM-C2116A Type A 2 inch 1 inch 16 2 Rows 8 5-1/2 inch 5 inch
SM-C2158 Standard 2 inch 1-1/2 inch 8 1 Row 8 8-5/8 inch 4-1/4 inch
 
2-1/2 INCH PIPING HUBS
Part Number Style Piping
Size
FNPT		 Lateral Ports Outside
Diameter		 Overall
Height
Size
FNPT		 Total
Number		 Number
Per Row
SM-C253412 Standard 2-1/2 inch 3/4 inch 12 2 Rows 6 4 inch 3-5/8 inch
SM-C253412A Type A 2-1/2 inch 3/4 inch 12 2 Rows 6 4 inch 3-5/8 inch
SM-C253412B Type B 2-1/2 inch 3/4 inch 12 2 Rows 6 4 inch 3-5/8 inch
 
3 INCH PIPING HUBS
Part Number Style Piping
Size
FNPT		 Lateral Ports Outside
Diameter		 Overall
Height
Size
FNPT		 Total
Number		 Number
Per Row
SM-C33416 Standard 3 inch 3/4 inch 16 2 Rows 8 4-1/2 inch 4 inch
SM-C33416A Type A 3 inch 3/4 inch 16 2 Rows 8 4-1/2 inch 4 inch
SM-C33416B Type B 3 inch 3/4 inch 16 2 Rows 8 4-1/2 inch 4 inch
SM-C33424A Type A 3 inch 3/4 inch 24 3 Rows 8 4-1/2 inch 5-5/16 inch
SM-C33424B Type B 3 inch 3/4 inch 24 3 Rows 8 4-1/2 inch 5-5/16 inch
SM-C3120 Standard 3 inch 1 inch 20 2 Rows 10 6 inch 4-1/2 inch
SM-C3120A Type A 3 inch 1 inch 20 2 Rows 10 6 inch 4-1/2 inch
SM-C3148 Standard 3 inch 1-1/4 inch 8 1 Row 8 5-1/2 inch 4 inch
 
4 INCH PIPING HUBS
Part Number Style Piping
Size
FNPT		 Lateral Ports Outside
Diameter		 Overall
Height
Size
FNPT		 Total
Number		 Number
Per Row
SM-C4116 Standard 4 inch 1 inch 16 2 Rows 8 5-1/2 inch 4-5/8 inch
SM-C4116A Type A 4 inch 1 inch 16

2 Rows 8

 5-1/2 inch 4-5/8 inch
SM-C4116B Type B 4 inch 1 inch 16 2 Rows 8 5-1/2 inch 4-5/8 inch
SM-C4120A Type A 4 inch 1 inch 20 2 Rows 10 7 inch 5-3/4 inch
SM-C4120B Type B 4 inch 1 inch 20 2 Rows 10 7 inch 5-3/4 inch
SM-C4121A Type A 4 inch 1 inch 21 3 Rows 7 7-1/4 inch 5-1/2 inch
SM-C41416A Type A 4 inch 1-1/4 inch 16 2 Rows 8 6 inch 5-3/4 inch
SM-C41418A Type A 4 inch 1-1/4 inch 18 3 Rows 6 5-1/2 inch 8-1/4 inch
SM-C41424A Type A 4 inch 1-1/4 inch 24 2 Rows 12 12-3/4 inch 7-1/2 inch
SM-C41436A Type A 4 inch 1-1/4 inch 36 3 Rows 12 12-3/4 inch 9-3/8 inch
SM-C4158 Standard 4 inch 1-1/2 inch 8 1 Row 8 8-5/8 inch 4-1/4 inch
SM-C426 Standard 4 inch 2 inch 6 1 Row 6 5-1/2 inch 6-7/16 inch
 
6 INCH PIPING HUBS
Part Number Style Piping
Size
FNPT		 Lateral Ports Outside
Diameter		 Overall
Height
Size
FNPT		 Total
Number		 Number
Per Row
SM-C61424A Type A 6 inch 1-1/4 inch 24 2 Rows 12 13 inch 7-13/16 inch
SM-C61424B Type B 6 inch 1-1/4 inch 24 2 Rows 12 13 inch 7-13/16 inch
SM-C61436A Type A 6 inch 1-1/4 inch 36 3 Rows 12 13 inch 10-7/16 inch
SM-C61516 Standard 6 inch 1-1/2 inch 16 2 Rows 8 8-5/8 inch 6-3/8 inch
SM-C61516A Type A 6 inch 1-1/2 inch 16 2 Rows 8 8-5/8 inch 6-3/8 inch
SM-C61516B Type B 6 inch 1-1/2 inch 16 2 Rows 8 8-5/8 inch 6-3/8 inch
SM-C628 Standard 6 inch 2 inch 8 1 Row 8 8-5/8 inch 5-1/2 inch
 
8 INCH PIPING HUBS
Part Number Style Piping
Size
FNPT		 Lateral Ports Outside
Diameter		 Overall
Height
Size
FNPT		 Total
Number		 Number
Per Row
SM-C81436A Type A 8 inch 1-1/4 inch 36 3 Rows 12 12-3/4 inch 9-3/8 inch
SM-C8220 Standard 8 inch 2 inch 20 2 Rows 10 9-3/4 inch 8-3/4 inch
 
REFERENCE INFORMATION
Recommended Number of Laterals Per Tank Size
Tank Diameter Number of Laterals
18 inch 6 to 7
21 inch 7 to 8
24 inch 8 to 10
30 inch 10 to 12
36 inch 12 to 14
42 inch 13 to 17
48 inch 16 to 19
54 inch 17 to 21
60 inch 19 to 24
72 inch 22 to 28
84 inch 26 to 33
96 inch 30 to 38
108 inch 34 to 42
 
 
 
Safe Water Technologies, Inc.
996 Bluff City Boulevard
Elgin, IL 60120 USA
  
 
Telephone: +1.847.888.6900
Facsimile: +1.847.888.6924
E-mail: info@swtwater.com
https://www.swtwater.com

Last Updated: April 1, 2024