Author: CStrickland

Description

Fiberglass surge tanks are superior to any other material because it is extremely corrosion resistant.Surge tanks are generally required on gutter pools to allow a “storage” space for water displaced by swimmers. The preferred arrangement is to hold-back (“modulate”) the water from the main drain pipe so that water entering the gutters can flow to the surge tank and not back up in the pool. This is done with a float ball control on a butterfly type valve mounted on the main drain line. Modulating the main drain line insures that the debris that normally accumulates on the surface of the pool will be swept quickly to the filters. The schematics below show the general arrangement of various type surge systems. The surge tank can be a built in place concrete vault or a closed top tank, vented to a point above pool water level. It is also common to find vacuum D.E. filter components installed in a field constructed concrete tank which also acts as a surge tank. The volume of water that can be stored in the space between the normal water level in the surge tank and the pool water level is the surge capacity of the tank.

To receive cad drawings, quotes or additional product information please contact us.

Specifications

I.D. 30″ 36″ 42″ 48″ 54″ 60″ 66″ 72″
O.D 31 1/4″ 37 1/4″ 43 1/4″ 49 1/4″ 55 1/4″ 61 1/4″ 67 1/4″ 73 1/4″
Weight (Lbs.) 308# 349# 397# 426# 484# 545# 590# 630#
Height 87″ 88 1/4″ 89 1/4″ 92″ 95″ 95 1/2″ 101″ 102″
“H” Dim 20″ 20″ 20″ 22″ 24″ 24 1/4″ 26″ 28″
Support Ring 24 1/2″ 30 1/2″ 36 1/2″ 42 3/4″ 48 3/4″ 54 3/4″ 60 3/4″ 60 3/4″
Total Gallons 202 297 412 547 705 885 1091 1320
Surge Cap. 95 142 214 272 353 428 590 721

Specifications

 

“A” X “B” Length
16″ X 14″ 14″
16″ X 12″ 14″
16″ X 10″ 14″
16″ X 8″ 14″
14″ X 12″ 14″
14″ X 10″ 14″
14″ X 8″ 14″
12″ X 10″ 14″
12″ X 8″ 14″
12″ X 6″ 14″
12″ X 5″ 14″
10″ X 8″ 14″
10″ X 6″ 14″
10″ X 5″ 14″
8″ X 6″ 12″
8″ X 5″ 12″
8″ X 4″ 12″
6″ X 5″ 12″
6″ X 4″ 12″
6″ X 3″ 12″
4″ X 3″ 9″
4″ X 2-1/2″ 9″
4″ X 2″ 9″

 

FLANGE DATA
I.D. O.D. B.C. # Holes Hole Dia. Flg. Thk.
16″ 24″ 21-1/4″ 16 1-1/8″ 1-3/16″
14″ 21-1/2″ 18-3/4″ 12 1-1/8″ 1-1/16″
12″ 19-1/2″ 17″ 12 1″ 1″
10″ 16-1/2″ 14-1/4″ 12 1″ 7/8″
8″ 14″ 11-3/4″ 8 7/8″ 3/4″
6″ 11-1/2″ 9-1/2″ 8 7/8″ 5/8″
5″ 10-1/2″ 8-1/2″ 8 7/8″ 5/8″
4″ 9-1/2″ 7-1/2″ 8 3/4″ 9/16″
3″ 9-1/2″ 6″ 4 3/4″ 1/2″
2-1/2″ 7-1/2″ 5-1/2″ 4 3/4″ 1/2″
2″ 6-1/2″ 4-3/4″ 4 3/4″ 1/2″

 

Standard

 Valve Size A B C D E F G Bolt Circle Bolt Size
4″ 4.00 6.06 7 3 5/8 15 1/4 7 1/4 12 1/2 7 1/2 5/8-11 8
6″ 5.75 8.12 8 4 5/8 14 3/4 7 1/4 14 1/4 9 1/2 3/4-10 8
8″ 7.75 10.5 9 1/2 5 3/4 14 3/4 7 1/4 14 1/4 11 3/4 3/4-10 8
10″ 9.75 12.75 10 3/4 7 1/4 19 3/4 7 1/4 14 1/4 14 1/4 7/8-9 12
12″ 11.75 14.88 12-1/4 8-1/8 19 3/4 7 1/4 14 1/4 14 1/4 7/8-9 12

 

Level Control Valve System

LEVEL CONTROL VALVE SYSTEM

The LEVEL CONTROL VALVE SYSTEM, complete with PILOT VALVE and accessories, will maintain the appropriate tank operating water level. The system is tight closing on shut-off. Items #1-#5 are supplied by MER-MADE FILTER.

 

1. The LEVEL CONTROL VALVE (LCV) AND ACTUATOR is a sprint-to-close type that will open when pressure is applied to the underside of the diaphragm.

2. The BRASS PILOT VALVE acts as a controller.  As the water level in the tank drops, the pilot valve bleeds off less water from the supply line, thereby increasing pressure on the diaphragm, opening the LCV & allowing more water to flow through the influent line into the tank.  The converse of this happens when the water level rises in the tank.

3. The 1/2″ INLINE STRAINER helps to keep small particles out of the system.

4. The 1/2″ BRASS NEEDLE VALVE allows for finer control of valve opening & closing.

5. The 0-60 LB., 2-1/2″ PRESSURE GAUGE provides you with the supply pressure.

SYSTEM SPECIFICATIONS:

A modulating type valve shall be installed on the tank inlet line.  The valve shall be spring-closed, pressure-open diaphragm type with the operating pressure being supplied by an external water (optional air) source, minimum 20 psi.  The valve shall be controlled by a pilot float valve installed in the tank.  The system shall come complete with needle valve, inline strainer & pressure gauge.  System to be supplied by MER-MADE FILTER, INC.

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North American Filtration
25 Arrow Rd. 
Ramsey, NJ
07446
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