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SUPPLY, INSTALL and COMMISION A LOW MAINTENANCE PRESSURE SENSOR at ETWATWA 18 PUMP STATION.

Author : George
Date posted : 2017-08-21
Bid Number : RFQ201708/023

Description :

 

Item No.

Description

Quantity

1.      

SUPPLY, INSTALL and COMMISION A LOW MAINTENANCE PRESSURE SENSOR at ETWATWA 18 PUMP STATION.

1

 

Scope

Level measurement shall be done by a low-maintenance submersible pressure sensor suitable for sewage water applications and for installation in the pump sump. The pressure sensor has to be connected to the RTU and should meet the following demands:

Technical data

Output signal proportional to the level                                         4 – 20mA

Power supply                                                                            10 – 30VDC

Pre-programmed measurement range                                        0-3m, 0-5m or 0-10m

                                                                                                0-9.8ft, 0-16.4ft or 0-32.8ft

Provided cable length                                                                12m/39ft

Operational temperature range                                                   -10 – 60°C or 14 – 140 °F

Long term instability                                                                   < 0,1% FS per year

Calibration accuracy                                                                  < 0,5% FS

Diaphragm                                                                                  SS 1.4404 AISI 316L

Heavy weight for little affect of turbulence                                   Yes

Soft cable for straight cable installation                                       Yes

Suitable for salt water installations                                              Yes

Part information printed on sensor body                                      Yes

Large diaphragm protection holes to prevent clogging                  Yes

 

Standards

In accordance with EN 61000-6-1:1999, EN 61000-6-2:1999,

EN 61000-6-3:2001, EN 61000-6-4:2001

Bid closing date : 2017-08-24
Compulsory site meeting : N/A

Contact Person :

Tinus Joubert
Contact number : 082 703 4201
E-mail address :
Bid validity period : 03 Days
Day when Quotation is to be submitted to ERWAT Offices:
Non-refundable Document fee : N/A
View Bidders /Awarded to

 

QUOTATION REQUIREMENTS

Work offered that DO NOT comply with the specifications will not be evaluated. The successful bidder must register on National Treasury’s Centralised Supplier Database. (www.csd.gov.za).

PLEASE NOTE THAT FAILURE TO MEET ANY OR ALL OF THESE REQUIREMENTS WILL LEAD TO DISQUALIFICATION

  • Valid Certified copy or original BBBEE Compliance Certificate;
  • Valid Tax Clearance Pin issued by SARS on e-filing;
  • Copy of Latest Municipal Account (not older than three months from date of closing);
  • Declaration of Interest – MBD 4.2 [ download form ].

NB: Bidders will not be allowed on any of the ERWAT sites without a work permit and the correct PPE gear.

GENERAL NOTES:

  • Request for Quotations must be submitted electronically to the following e-mail address: rfq@erwat.co.za
  • ERWAT reserves the right to not accept the lowest bid, to award the quote to more than one bidder, to award the quote in part or to not award it at all and bidders will have no claim of any kind in this regard.
  • The subject line must only contain the RFQ number and description, quotations that do not follow these conventions will not be considered.
  • Quotations that are not received on the specific date and time, will be marked as late responses and such quotations will, in terms of the Supply Chain Management Policy of ERWAT, not be considered by ERWAT as valid

 

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