Green Leaf

Buying Guide: Nylon and Polypropylene Fittings

Nylon Adapters
Nylon adapters include the 3/4 in. D x 3/8 in. D adapter and the 3/4 in. Dia. x 1 in. Dia. hose adapter, which is sold in packs of 5, so match both ends to the hose or pipe you are connecting. Green Leaf nylon fittings resist organic solvents, oils, gasoline and high temperatures. Measure the old fitting or the line before you order.

Threaded MPT and FPT Fittings
Threaded fittings include the 1/8 in. MPT x 1/8 in. Dia. MPT nylon plug, sold in packs of 5, and the Schedule 80 1 Inch MPT x 1 Inch D MPT polypropylene nipple. Compare the MPT or FPT label on each end with your existing connection, and match the thread size too. The nylon plug has a 75 psi pressure rating, so check the rating on your old fitting before you order.

Barb Elbows and Hose Menders
The 5/8 in. Barb x 5/8 in. Dia. Barb nylon elbow is a barb fitting for hose connections. The 1/4 in. Barb T x 3/16 in. D Barb nylon reducing coupler is a straight hose mender, commonly called a hose splice fitting or a sham fitting, used to connect two hoses. Measure your hose and match the barb size to it before you order.

Frequently Asked Questions

What does Green Leaf make?
Green Leaf makes nylon and polypropylene hose, pipe and nozzle fittings. Products include adapters, plugs, elbows, nipples, couplings, hose menders and rubber camlock gaskets, in threaded and hose barb styles, used in agricultural, plumbing and industrial liquid-handling applications.

How do I choose the right size or thread type?
Start with the size and thread type on the old fitting, since the labels use notations such as MPT, FPT and Dia. Measure the hose or pipe you are connecting before you order, and match the size on each end. Using the part number from the old fitting is the simplest check.

What pressure rating do some of these fittings have?
The 5/8 in. Barb x 5/8 in. Dia. nylon elbow and the 1/8 in. MPT nylon plug have a 75 psi pressure rating, and that rating is tied to temperature. Check the rating on your old fitting, and confirm the fitting suits the liquid and conditions you plan to use it with.