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Treatment Plant Products.
For distributors, contractors and engineers on water and wastewater treatment plant jobs.
✓ Bid tracking, quotes and spec help ✓ Phased releases
Pick the product.
Mostly the same products as line work, with more flanged fittings, more drawings and coatings matched to the service.
Customers call it plant work or treatment plant work; SIGMA's plant team is also known as the treatment plant division.
Flanged and MJ fittings
Mostly flanged fittings on plant jobs, plus C153 and C110 MJ fittings.
Flanged 2 to 64 in. · 54 in. and up made per AWWA C153
ONE-LOK SLDE restraints
Wedge-action restraint for mechanical joints on ductile iron pipe.
SLDE 3 to 64 in.
PVC pipe restraints
PV-LOK serrated restraints and ONE-LOK SLCE wedge-action restraint for PVC pipe.
PV-LOK 2 to 48 in. · SLCE 3 to 60 in.
SIGMAFlange Universal (SFUP)
Flange adapter that restrains plain-end pipe at a flange on ductile iron, C900 PVC, steel and IPS PVC pipe.
3 to 36 in. on ductile iron
FLANGE-PAK
Flange gasket and bolt packs for flanged joints, with plain, zinc plated or stainless 304 hardware. Other bolting a spec calls for is quoted per job.
2 to 48 in.
Coatings and linings
Bare, standard, FBE, ceramic epoxy lined and zinc coated fittings are on SIGMA price lists. Custom coatings and linings are quoted per job.
Send the coating and lining spec with the RFQ
How a plant job runs.
Before the bid. The team tracks plant projects, often months ahead. Send your RFQ to sigmaplant@sigmaco.com with the specs, the bid date and the date you need the quote back.
The quote. The plant team reviews the specs and quotes everything SIGMA can supply.
After award. One project manager coordinates drawings, special bolting and each phased release, and keeps you posted on ETAs.
64 in.
ONE-LOK SLDE restraints for ductile iron pipe are on the price list from 3 to 64 in. Sizes 54 in. and up are priced on request.
60 in.
ONE-LOK SLCE restraints for PVC pipe are on the price list from 3 to 60 in. Sizes 54 in. and up are priced on request.
Sizes from SIGMA's restraint price list PL2024-1.
Price lists and spec sheet.
List prices by item number for the products plant jobs use most. Domestic lists are on the Domestic Products page, and every coating list is on the Coatings and Linings page.
Import Fittings price list
C153 MJ, C110 MJ, C110 flanged and C153 push-on fittings, standard or bare. Effective 1/5/2026
Import Restraint Products price list
ONE-LOK SLDE and SLCE, PV-LOK and SFUP. PL2024-1, effective 12/9/2024, rev. 4/14/2026
| Document | Covers |
|---|---|
|
Import Fittings-FBE price list (PDF) |
Fusion bonded epoxy (FBE): C153 MJ, C110 MJ, C110 flanged, C153 push-on |
|
Import Fittings-Ceramic Epoxy price list (PDF) |
Ceramic epoxy lined: C153 MJ, C110 MJ, C110 flanged |
|
Import Fittings-Zinc price list (PDF) |
SIGMA Z-COAT: C153 MJ, C110 MJ, C110 flanged, C153 push-on |
|
FLANGE-PAK spec sheet (PDF) |
Gasket, bolts and nuts; bolt count and weight by size |
Questions about plant work.
Short answers. Email the plant team for the rest.
Matt Levyssohn and Char Blubaugh, the plant team's project managers. Matt covers the Northeast, Midwest, Southwest and West Coast; Char covers the Southeast. RFQs go to the team inbox, sigmaplant@sigmaco.com, and Matt or Char reviews each one. For questions on a quote, call 800.999.2550 and ask for the plant team.
The specs, attached or linked; the bid date and the date you need the quote back (for example: bid on the 25th, quote back by the 23rd); the coating and lining for each item; any drawings, labeling or special bolting the spec calls for; the release plan, if you know it; and whether SIGMA is an approved manufacturer on the job. Email it to sigmaplant@sigmaco.com.
The project's engineers write the spec. The team checks it against SIGMA products and raises anything unclear while it quotes. If SIGMA is not on the approved manufacturer list, the team can contact the engineer, answer questions or present the products for approval. Engineers checking SIGMA for a spec can email the plant team; the product pages carry catalogs and, where published, submittals and spec sheets.
The job's material is ordered through the distributor, then released in parts as construction calls for it: for example, 5 of 20 fittings now and 10 more six months later. The project manager schedules each release and works out the delivery and unloading at the site with the distributor and the contractor. For a release, email sigmaplant@sigmaco.com or call 800.999.2550 and ask for the plant team.
Bare, standard, FBE, ceramic epoxy lined and SIGMA Z-COAT zinc coated fittings are all on SIGMA price lists. The Coatings and Linings page shows which fittings come in each, import and domestic. Custom coatings and linings are quoted per job; send the coating and lining spec for each item with the RFQ.
The team says so plainly rather than leaving it to surface on the jobsite. If a part cannot be made the way the spec reads, or a drawing is not approved yet, they tell you and work out an option with you.
Through your waterworks distributor. The plant team works mostly with distributors, and sometimes with the contractor. Product pages link to the price list where one is posted; a plant job is quoted from your RFQ.
Have a plant job to quote?
The plant team quotes from your specs. For line work, your regional team can help.