FLOPAM AN 934 VHM Equivalent: Anionic PAM Supply Route

SNF SAS's Catalogue 2007 Poudres, page 34, identifies AN 934 VHM as an anionic powder with High charge and Ultra High molecular weight. Its approximate Brookfield readings are 2,000 / 800 / 300 cps at 5.0 / 2.5 / 1.0 g/L respectively. The table gives a recommended make-up concentration of 3 g/L, maximum 5 g/L, and dissolution time of 90 minutes in deionized water at 5 g/L and 25 degrees C.

These are historical, indicative catalogue values, not current contractual specifications. ChinaPAM and SNF set their own qualitative bands; our Very High MW label does not establish a numerical match to SNF's Ultra High label. Confirm the applicable product documents and compare performance on your actual feed.

The same catalogue lists AN 934 SH on page 36 at Medium charge, Very High molecular weight and a 60-minute dissolution time under the stated conditions. Its viscosity profile is 1,800 / 700 / 300 cps. Both the charge descriptor and suffix differ from the VHM entry; a purchase order that only says AN 934 leaves a material selection question unresolved.

AN 945 VHM shares the VHM charge and molecular-weight descriptors, but its 2.5 g/L Brookfield reading is 1,000 cps. It is not the AN 934 VHM curve. Specify the full grade when discussing your preparation system and supply trial.

1054V is an anionic powder in our High charge and Very High MW bands. It is the initial ChinaPAM route for this inquiry. A matching description alone cannot establish the required dose or process result. Compare it with your incumbent using the same feed, mixing sequence and measured polymer delivery.

Prepare our powder at 1-3 g/L, with a maximum of 5 g/L and dissolution within 60 minutes at the working concentration. These are ChinaPAM preparation parameters; they do not replace the incumbent's instructions. Make-up concentration is different from the treatment dose, which must be established on the actual feed.

Maturation schedule. Moving from SH to VHM while retaining a 60-minute release schedule can send incompletely prepared incumbent solution to dosing. Check for residual particles and verify maturation using the actual water, temperature and concentration before interpreting a poor settling result as a dose problem. Prepare the ChinaPAM sample according to its own instructions.

Viscosity and delivered dose. Borrowing a neighboring VHM grade's viscosity curve can give a misleading basis for dilution and pump calibration. Measure the prepared solution and check actual pump delivery at your selected concentration. Assess overflow clarity and settling together with underflow handling or the relevant downstream dewatering result. Catalogue Brookfield readings alone do not predict pump load or guarantee a process outcome.

Send the exact grade on your bags, current make-up concentration and maturation time, dosing equipment, treatment objective and monthly quantity. We will discuss the 1054V supply route, sample arrangements and the documents applicable to your grade and order.