Blacoh SPILLSTOP Installation And Operation Manual - Page 3

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Installation

1. Install the shutoff valve ② directly to the air valve of the air operated diaphragm pump (Figure 1). The shutoff valve

can be installed before or after any regulator or lubricator installed in the compressed air line. (See Figures 2 and 3 for

additional configurations using multiple pump shutoff valves.)

The shutoff valve ② must be installed so air flows into port A of the shutoff valve (or port 1 depending on

valve design), and exits the valve through port B (or port 2) towards the pump.

2. Install an exhaust hose ⑨ with a pressure rating at least as high as the system air pressure from the pump's air

discharge port (exhaust) to the SPILLSTOP inlet connection port ③ . Rigid piping may be used as an alternative;

however, a minimum 6" (15.2 cm) length of hose should be used for the connection from the pipe to the SPILLSTOP

inlet connection port.

High inlet pressure: If the possibility exists of siphoning liquid through the pump due to high pump inlet pressure,

then a second shutoff valve ② should be installed in the exhaust line to the SPILLSTOP (FIGURE 2). The shutoff valve

should be installed at the inlet port of the SPILLSTOP. This valve will shut off automatically when the shutoff valve to the

pump's compressed air source is closed.

3. Connect an air line with a 1/4" (6.4 mm) female quick connect to the 1/4" (6.4 mm) male quick connect supplied on the

SPILLSTOP regulator ① . The quick connect can be removed for hard plumbing.

4. To start the pump, adjust the SPILLSTOP regulator ① to a minimum of 40 psi (2.7 bar). If the SPILLSTOP is installed

with optional whistle, switch and/or a second shutoff valve for a backup pump, increase pressure to a minimum of 60 psi

(4.1 bar) to start the pump.

Since the shutoff valve ② is a normally closed valve, the pump will not operate unless an air line is

connected from the shutoff valve to the SPILLSTOP regulator ① .

5. Mounting the SPILLSTOP stand to the floor or table is not required; however, the stand includes footpads with holes for

this purpose.

6. The SPILLSTOP leak containment system is now operational. When compressed air is supplied to the pump it will

operate normally. Exhaust air from the pump will flow into the SPILLSTOP and out of the SPILLSTOP silencer/

reclassifier ⑦ .

Operation

If a leak develops through the pump's diaphragm, process fluid enters the pump's air exhaust and is carried to the

SPILLSTOP. As process fluid is accumulated in the SPILLSTOP, an internal float ⑤ is raised and airflow is shifted through

the SPILLSTOP's 3-way pneumatic actuator valve ⑥ from port 2 (the air line connected to the pump shutoff valve ② ) to port

4. When this shifting occurs, air pressure is removed from the shutoff valve ② which in turn closes the valve to shut down

the pump and prevent the spill. At the same time, the air pressure shifted to port 4 of the 3-way pneumatic actuator valve can

be used to pneumatically power the optional Whistle Kit, Pneumatic-to-Electric Switch, and/or a second pump shutoff valve

to automatically start a standby pump.

When the SPILLSTOP triggers a pump shutdown, the most likely cause is a failed pump diaphragm. Excessive moisture

laden compressed air can also cause the SPILLSTOP to trigger a shutdown, simulating a failed pump diaphragm.

Follow the steps below whenever a pump shutdown occurs:

1. Turn off all air supply to the pump and SPILLSTOP.

2. Drain the contents of the SPILLSTOP by opening the drain valve ⑧ on the bottom of the SPILLSTOP into a container

appropriate for the process fluid being pumped. A tube or hose should be attached to the drain valve when draining fluid.

3. If fluid drained from the SPILLSTOP is water condensation only, no further action is necessary. Turn on the air supply to

the pump and SPILLSTOP to restart the pump.

4. If the process fluid being pumped is found in the SPILLSTOP, the pump must be repaired immediately to minimize

internal damage and the SPILLSTOP must be serviced.

BLACOH Fluid Control