A 1.5 inch bolted double flanged polypropylene fitting with stainless bolts and an EPDM gasket
Part number 34100120 is Snyder's 1.5 inch double flanged fitting in polypropylene, bolted with stainless steel bolts and sealed with an EPDM gasket. A double flanged fitting clamps the tank wall between two flanges drawn together by bolts, instead of relying on a single nut the way a threaded bulkhead does. That gives an even seal all the way round and makes it the port for a thicker or curved wall, or for a connection you want to be able to open and reseal. The flanges are about 3.5 inches across and 1.5 inches deep, and the fitting weighs 2 lb. Polypropylene and EPDM together handle water, most fertilizers and many common chemicals.
Matching it to a tank? Add it to your cart at the top of this page, get LTL freight to your ZIP, or call 866-418-1777. The listed price is before freight.
What to check before you buy
- The size. 1.5 inch. Match it to the valve, pipe or hose on the outside.
- The liquid. Polypropylene body, EPDM gasket and stainless steel bolts are the wetted parts. Check the liquid against each, and tell us the concentration and temperature if it is anything other than water or fertilizer.
- The wall. Both flanges need a flat area of wall to bear on so the gasket seals all the way round. Snyder's drawing, linked on this page under Technical Drawing, gives the flange size and the hole the wall needs.
- Access from inside. A double flanged fitting is tightened from both sides, so you need a hand or a tool on the inside flange. On a tank with a small manway, check reach before you drill.
Installing it
Dry-fit first and turn the fitting so the outside connection points where the pipe will run. Draw the bolts up a little at a time in a cross pattern, the way you would a wheel, so the gasket is squeezed evenly rather than pinched on one side. Stop when the gasket is seated; a plastic flange cracked by over-tightening is the usual failure. Support the first length of pipe on its own so the wall carries liquid, not hardware. Fill with water the first time and check the flange for a weep before the real liquid goes in. Keep a spare gasket on the shelf.
Shipping
This is a 2 lb part in a 6 by 6 by 6 inch carton and it travels by UPS from Snyder's Lincoln, Nebraska plant when ordered loose. Fittings installed on a tank at the factory ship with the tank from that tank's plant. The listed price is before freight; the freight cost estimator gives the cost to your ZIP. Order it with the tank and both arrive together.
Freight and documents
LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
Technical drawing (PDF) for Snyder Industries 34100120.
See this tank
Product video. Watch the Snyder Industries 1.5 Inch Bolted DBL Flanged PP Fitting S.S. Bolts (EPDM Gasket) video (65 seconds) with dimensions, fittings and shipping notes.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, or call 866-418-1777. The listed price is before freight.
