ATT 8 - QAs (2) - FA813226Q0048 - Reverse Osmosis Membrane Replacement.pdf

QUESTIONS AND ANSWERS

FOR

SOLICITATION # FA813226Q0048

Reverse Osmosis Membrane Replacement (Serv P26-054)

QA Document #2

Marc J. Kreienbrink, Contracting Officer Kylie McMichael, Contract Specialist

NAME TITLE ORG PHONE # EMAIL

Mary Katherine Maraschick

Process Engineer

PMXG/MXDECA 405-734-

mary_katherine.maraschick_randolph@us.af.mil

Christopher Ray Chemical Engineer

PMXG/ MXDECA 405-582-

christopher.ray.38@us.af.mil

1. Manufacturer/ Model Question: What is the manufacturer and model of the pressure vessels for System 1, the Hausers Water

System, Model MRO-576K-8H, Equipment ID OC20140?

Answer: Codeline Model 80A30 membrane housing

2. Manufacturer/ Model Question: What is the manufacturer and model of the pressure vessels for System 2, the L&T Technologies system, Model PROJECT 2663, Equipment ID OC19792?

Answer: Codeline Model 80A30 membrane housing

3. Brand/ Model Question: What brand and model of membranes are currently installed in both systems?

System 1: TFC Brackish 8’’ x 40’’ (6) per housing; Housings are 8’’ Diameter x 6 long, FRP material, 300

PSIG design pressure System 2: Polyamide Thin-film composite; Filmtec BW30-400 High Rejection, High surface area brackish water RO element (8.0’’ Diameter x 40’’) PN 98650

4. Part Numbers/Membrane History Question: If available, we would also appreciate any maintenance records showing prior seal or O-ring part numbers used, or any previous membrane replacement history.

Answer: N/a

5. Manufacturer/ Model Question: The PWS specifies 8" × 40" LP RO Membranes, Part No. C004-02GMT. Our supplier is unable to identify this part number. Could you provide the manufacturer/model or an approved cross-reference?

Answer: See above descriptions

6. Seals and O-Rings Question: For the RO Vessel Seals and O-Rings (80A30X6OR and 80A30X4OR), could you confirm whether these are vessel head seal kits, adapter O-rings, or another seal assembly?

Answer Head seal 45354, permeate port seal 45342, adapter seal 45308

7. Manufacturer/Model Question: Could you provide the manufacturer/model of the RO vessels and confirm whether they are end-port, side-port, or Ecoline housings?

System 1: Codeline Pressure Vessels Model 80A30 – side-ported pressure vessels by Pentair Water

Treatment System 2: Codeline Pressure Vessels Model 80A30 – side-ported pressure vessels by Pentair Water

Treatment

As evidenced by the signature(s) below, I (we) certify that any supporting data contained herein, which is our responsibility, is both accurate and complete.

Christopher Ray

COGNIZANT POC NAME

Chemical Engineer, PMXG/ MXDECA

TITLE AND OFFICE SYMBOL SIGNATURE AND DATE

Mary Katherine Maraschick

COGNIZANT POC NAME

Process Engineer, PMXG/ MXDECA

TITLE AND OFFICE SYMBOL SIGNATURE AND DATE