Poly Processing

Chemical Storage Solutions

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Fittings

Smart Fit Guide

A complete reference guide on where or if a fitting can be placed on our tanks. download

IMFO® Fittings

IMFO® Fittings

Seamless, one-piece construction. External fitting access. IMFO® system eliminates need for confined space entry, prevents sludge buildup, and provides complete drainage.

Download the IMFO® guide for additional information on integrally molded flange outlet tanks and fittings.
 

Drawings

The B.O.S.S.® Fitting

The B.O.S.S.® Fitting

This one-piece sure-seal fitting prevents leaks and adds value to your tank installation. Available in PVC and CPVC back ring, its one-piece design reduces the seal point to a single gasket, and its polyethylene construction ensures chemical compatibility. Its back ring design reduces stress on the fitting and makes it three times stronger than similar plastic fittings.

Download B.O.S.S.® literature

Bolts: 316 stainless steel, titanium and C-276
Body: Polyethylene
Connections: socketed
Size: 1˝, 2˝ and 3˝
Gaskets: EPDM, Viton® and Viton® GF
Options: flange adapter, siphon leg
Drawings:

Bellows Transition Fittings

Bellows Transition Fittings

A secure yet flexible, fully contained SAFE-Tank® bottom discharge. By incorporating an expansion joint, the tank expands freely during loading and unloading, and it virtually eliminates damage from piping vibrations caused by pumps.

The pressure-tested internal components of the fitting come to you pre-assembled and ready to install.

Download Bellows Transition Fitting literature

Drawings

Bolted Flange Fittings

Bolted Flange Fittings

Available in PVC and CPVC. With these fittings, all aspects of fitting maintenance can be done externally, with no tank entry required. These can be installed on sidewall or dome. Bolt heads are encapsulated in polyethylene, providing chemical resistance.

Bolts: 316 stainless steel, titanium, C-276 and Alloy 400
Body: standard PVC and CPVC
Connections: socketed or threaded
Sizes: 1˝, 11/2˝, 2˝, 3˝ and 4˝ threaded;
1˝, 11/2˝, 2˝, 3˝, 4˝ and 6˝ socketed
Gaskets: EPDM, Viton® and Viton® GF
Options: flange adapter, siphon leg
Drawings:

Bolted Spool Fittings

Bolted Spool Fittings

The Bolted Spool Fitting is fabricated per the customer’s requirements and is typically used for larger dome and sidewall connections. Use a Van Stone flange to connect piping. Bolted Spool Fittings 8 inches or greater are manufactured with gussets.

Bolts: 316 stainless steel, titanium, C-276 and Alloy 400
Body: standard PVC, CPVC and polypropylene
Connections: flanged
Size: 1˝ to 12˝
Gaskets: EPDM, Viton® and Viton® GF
Options: siphon leg
Drawings:

Bulkhead Fittings

Bulkhead Fittings
NOTE: Over time, this fitting "creeps," causing the nut to loosen. Regular monitoring for drips is critical.

An economical fitting best used on small tanks in mild applications. Can be installed on sidewall, overflow or dome. May be used as a overflow fitting with all chemicals, since it’s non-wetted.  Bulkhead Fittings must be installed from the inside of the tank, requiring tank entry for repairs and maintenance. They should not be used on tanks greater than 3,000 gallons or tanks greater than 6 feet in height.

Body: standard PVC, CPVC and polypropylene
Connections: socketed or threaded
Size: 1/2˝ to 6˝
Gaskets: EPDM, Viton® and Viton® GF
Options: flange adapter, siphon leg
Drawings:

Universal Ball Dome Flanges

Universal Ball Dome Flanges

These flanges are “self-aligning,” which allows for vertical plumbing on the dome of the tank up to 22 degrees. The fitting can be repaired and maintained externally without tank entry. Available with Ryton® bolts, an economical alternative to titanium, C-276, and Alloy 400.

Bolts: 316 stainless steel, titanium, C-276, Alloy 400, Ryton®
Body: standard PVC or CPVC
Connections: threaded
Size: 1˝ to 4˝
Gaskets: EPDM, Viton® and Viton® GF
Options: flange adapter
Drawings:

Universal Ball Dome Bulkheads

Universal Ball Dome Bulkheads
NOTE: These fittings are for top-use only.

Our Universal Ball Dome Bulkheads are also “self-aligning,” which allows for vertical plumbing on the dome of the tank. An economical alternative to UBD flange-style bulkheads, since no additional bolts are required.

Body: standard PVC or CPVC
Connections: threaded
Size: 1˝ to 3˝
Gaskets: EPDM, Viton® and Viton® GF
Options: flange adapter
Drawings:

Made-Vertical Fittings

Made-Vertical Fittings
NOTE: These fittings are for top-use only.

Made-Vertical Fittings are fabricated per the customer’s requirements. They are typically used for larger domes that require a fitting to be above 4 inches and in those few cases where our domes are extremely steep. They may need to be supported independently of the tank. For optimal support, install it on a tank runway or as close to the edge as possible.

Bolts: 316 stainless steel, titanium, C-276, Alloy 400, Ryton®
Body: standard PVC or CPVC
Size: 1˝ to 10˝
Gaskets: EPDM, Viton® and Viton® GF
Options: flange adapter socketed or threaded
Drawings:

Flange Adapter

Flange Adapter

Includes a nipple and flange for connection to plumbing system.

Body: standard PVC and CPVC
Connections: socketed or threaded
Sizes: 1˝, 11/2˝, 2˝, 3˝ and 4˝ threaded;
1˝, 11/2˝, 2˝, 3˝, 4˝, and 6˝ socketed
Drawings:

Stainless Steel Fittings

Stainless Steel Fittings

Complete 316 stainless steel fittings. One-piece reduces seal point to a single surface like the B.O.S.S.® fitting. These can be installed on sidewall or dome.

Bolts: 316 stainless steel
Body: 316 stainless steel
Connections: threaded coupler, half nipple and full nipple
Sizes: 1/2˝, 3/4˝, 1˝, 11/2˝, 2˝, 3˝ and 4˝
Gaskets: EPDM, Viton® and Viton® GF
Options: flange adapter, siphon leg
Drawings: