City of Port Neches WTP Clarifier Blow Off Valves

Clarifier No. 1 Blow Off Valve Replacements

Replace three existing pneumatic actuated butterfly valves with new electric actuated
butterfly valves.

1. Coordinate with plant operators to remove existing clarifier from service.
2. Abandon existing air piping. Plug existing piping at blower header.
3. Remove existing pneumatic actuators and butterfly valves. Replace existing
butterfly valves with new 4-inch Pratt 2FII AWWA Butterfly valves with Beck
electric (open/close) actuators.
4. New actuators will be powered with 120V from new 10 amp circuits in the
existing Filter Valve Actuator Load Center located in the Filter Gallery.
5. New actuators will be controlled using existing open/close control wiring from
the Filter Control Room.
Install support beam as shown mounted on top of existing concrete and support
existing piping and new valves and fittings.
Clean and paint all new and existing piping and valves.

Clarifier No. 2 Blow Off Valve Replacements

Replace three existing pneumatic actuated butterfly valves with new electric actuated
butterfly valves.

1. Coordinate with plant operators to remove existing clarifier from service.
2. Abandon existing air piping. Plug existing piping at blower header.
3. Remove existing pneumatic actuators and butterfly valves. Replace existing
butterfly valves with new 3-inch Pratt 2FII AWWA Butterfly valves with Beck
electric (open/close) actuators.
4. New actuators will be powered with 120V from new 10 amp circuits in the
existing Filter Valve Actuator Load Center located in the Filter Gallery.
5. New actuators will be controlled using existing open/close control wiring from
Filter Control Room.

Install support beams and pipe supports as shown.  Remove existing grating and support angle as shown.  Remove and replace hand railing and install self closing gate.  Clean and paint all new and existing piping and valves.

## Details **Bid/Project ID:** B753-1033 **Type of Work:** Valve replacements **Pre-Bid Location:** City of Port Neches, City Hall Council Chambers, 1005 Merriman Street, Port Neches, TX 77651 **Bid Location:** City of Port Neches, City Hall, 1005 Merriman Street, Port Neches, TX 77651 **Engineer/Publisher:** LJA ENGINEERING, INC **Engineer Address:** 2615 Calder Ave, Ste 500, BEAUMONT, Texas, 77702