KEO/10-5370-0000 S-8-13.4/4 Sewerage Lift Stations BP2 – New Shooting Ranges and Training Complex Lehsaynia - Qatar
4. Discharge isolation valve and non-return valves shall be bolted directly to a flange on the discharge pipe. They shall be installed in horizontal pipework with a short length of pipe and a flange adaptor on the pump side to allow dismantling.
5. Isolation valves for sewage shall be of double flanged wedge gate type.
6. The non-return valves shall have proximity switches to prevent dry running.
13.4.11 ODOR CONTROL
1. Air vented from pumping stations will in most cases require odor treatment. In most cases, a two bed (duty/standby) system using carbon regenerated using caustic soda or potash will be preferred.
13.4.12 STRUCTURAL DESIGN
1. The design of concrete structure shall be in accordance with BS8110- 1”structural use of concrete”
2. All structures shall be designed for a minimum service life of 60 years.
13.4.13 SITE BOUNDARY FENCE & GATE
1. The boundary fence shall provide adequate security to prevent or at least discourage unauthorised access to the site.
2. The fence shall be installed in accordance to approved drawing. 3. The access gate shall be located and sized to avoid obstruction from the
public.
13.4.14 SITE FACILITIES
1. Stand-by generator plinth, water connection etc. shall be provided at lift stations.
2. Site layouts shall provide adequate space for access by operation and maintenance vehicles with suitable paved turning radius to allow vehicles to turn.
END OF PART