256, 257, 258 Series pipe bases - Preferred Lightning Protection, Inc.

Cast aluminum or brass u-bolt pipe mount base. Can be configured for top mount, side mount, or dual mount. Size 3″ O.D. or above can be provided with a cable connection. Fits O.D. pipes from 1.315″ O.D. to 8.625″ O.D. Available for air terminal sizes 3/8″, 1/2″, or 5/8″. Please specify air terminal size when ordering. U.L. Listed.
Use the following chart to specify exact configuration for base.

——

Material Code
A = Aluminum
C = Bronze

Mounting Style
256 — Top
(horizontal)
257 — Side
(vertical)
258 — Dual

Standard

O.D. Range
2 = 1.315″–2.00″
3 = 1.90″–3.00″
4 = 2.75″–4.50″
6 = 4.50″–6.75″
8 = 6.00″–8.625″

Air Terminal
thread size
38 — 3/8
12 — 1/2
58 — 5/8

Add “CH”
for Cable
ConnectorAvailable
for 3″
and above

Add “L” for Lead Coated

Examples:

C258X4L38 —: Bronze cast dual mount pipe base with 3/8″ threads for 2.75″ to 4.50″ O.D. pipe lead coated
A256X6CH12 —: Aluminum cast top mount pipe base with 1/2″ threads for 4.50″ to 6.75″ O.D. pipe supplied with a cable connector