Compression Fittings

Body: Polypropylene, high-grade copolymer.
Nut: Polypropylene, high-grade copolymer.
Split Ring: Acetal (POM, CPVC also available).
Liner: Acetal (POM).
Seal: Nitrile rubber (NBR, EPDM, FPM also available).
Reinforcing Ring: Stainless steel on all female offtakes from 11/4” up to 4”.
Bolts (Series 17): Plated steel.
Nuts (Series 17): Stainless steel.

Valves

Body: Polypropylene, high-grade copolymer.
O-Ring: See inside.
Spring: (items 03067, 03039), Stainless steel.

Saddles

Body: Polypropylene, high-grade copolymer.
Bolts and Nuts: Plated steel. (Stainless steel bolts and nuts also available)
Reinforcing Rings: Stainless steel.
Seal: Nitrile rubber (NBR).

Tappers + Compression Saddles

Body: Polypropylene, high-grade copolymer.
Split Rings: Acetal (POM, CPVC also available).
Nuts: Polypropylene, high-grade copolymer.
Bolts and Nuts: Stainless Steel.
Seal: EPDM.

Threaded Fittings

Body: Polypropylene, high-grade copolymer.
Reinforcing Ring: Stainless Steel.

The fittings and valves are not to be used with hot water, although they withstand the same temperature as the polyethylene pipe itself. The fittings and valves will withstand sub-zero temperatures.

Plasson Fittings are supplied, as standard, with polyacetal split rings and NBR O-rings which are suitable for water. For aggressive chemical applications CPVC split rings and EPDM or FPM O-rings can be supplied to produce a better chemical resistance.

Threads

All threads conform to ISO-7/1, BS 21 - 1973, DIN 2999, NEN 3258, AS 1722 Part 1 - 1975.

External tapper threads all sizes. Internal parallel thread up to 21/2”, internal tapper thread 3” and up.

Flanges

Flange dimensions in accordance with: ISO 7005-1 (TABLE 11),
BS 4504: 1989 (TABLE 11),
DIN 2501 (PN 16 TABLE), AS/NZS 4331. Metal backing rings to be used with all flanges.

Note

Catalogue numbers of Compression Fittings supplied with grey nuts have a final digit "0" (ex. 07010 or 87010). Those supplied with black nuts have a final digit "6" (ex. 07016 or 87016). For the sake of simplification, final digit "0" is used throughout this website.

Before installation ensure:
That the end of the pipe to be inserted into the fitting is free of scratches and other imperfections and that both the pipe and the fitting itself are clean of sand, mud, stones etc.

Do not over tighten nut when closing. Never use wrenches or spanners with handle lengths longer than 46 cm - excessive torque during tightening can spread nut cone and result in pull outs.

If fittings are reused, ensure split ring is sharp and bites into pipe to avoid pull outs. Alternatively replace split ring.

Note: We strongly recommend the use of PTFE tape in threaded connections.

16086 Saddle without SS ring,
Outlets 1/2" to 1" PN 10 - Outlets 1.1/4" - 2", PN 6

If you use a 16076 saddle with a 1 1/2" outlet & the special EPDM Tapper Seal cat. no. 16532015, then the saddle

changes to be 16279 and is suitable for PN 16.

16810, 16820, 16830, 16860, Compression Saddle PN 16

16540, 16544, Tapper PN 16

07680, Mechanical Tapping Valve PN 16

Series 5, Threaded fittings
Sizes 1/2" to 1", PN 10, (female threads not reinforced).
Sizes 1.1/4" to 2", female threads reinforced with SS rings, PN 10.
Sizes 1.1/4" to 2", female threads not reinforced with SS rings, PN 6.
Bushings (050207) 1/2" to 1", PN 10.
Bushings (050207) 11/4" to 4", PN 6.
Caps (050707) 1/2" to 1", PN 10.
Caps (050707) 11/4" to 2", PN 6.
Plugs (051707) 1/2 " to 2", PN 10.
Threaded nipples (050607 and 050605) 1/2" to 2", PN 10.
Threaded risers (051607), PN10

03405, Threaded Stop Tap PN 10
03407, Compression Stop Tap PN 16
03046, 03047, 03048, 03049, Angle Seat Valve PN 8
03067, Check Valve PN 8

070170 / 070570, Plass4
25x15-22 to 32x27-35, PN 16
50x35-50, PN 10

Line 7, 87 PN 16