EPDM Cold Shrink Open‑ended sleeve

WEPDMC EPDM Cold Shrink Tube

EPDM Cold Shrink Tubes are a series of open‑ended, tubular rubber sleeves, which are factory expanded and assembled onto a removable core. They are supplied for field installation in this prestretched condition. The core is removed after the tube has been positioned for installation over an in‑line connection, terminal lug, etc., allowing the tube to shrink and form a waterproof seal. The insulating tube is made of EPDM rubber, which contains no chlorides or sulphurs.

Features

Simple installation, requires only workman’s hands.

Accommodates a wide range of cable sizes.

No torches or heat required.

Good thermal stability.

Seals tight, retains its resiliency and pressure even after prolonged years of ageing and exposure.

Excellent wet electrical properties.

Improved tough rubber formulation to withstand rough backfilling.

Waterproof.

Resists fungus.

Resists acids and alkalis.

Resists ozone and ultraviolet light.

Dimensions

RAMA code, diameter, cable outer diameter range and relaxed tube length

RAMA cod	Diameter (mm)	Range of cable outer diameter, mm (inch)	Relaxed tube length, mm (inch)
2320-6	20	8-14 (0.31''-0.55'')	152 (6'')
2320-7	20	8-14 (0.31''-0.55'')	178 (7'')
2320-7	25	10-20 (0.39''-0.79'')	178 (7'')
2525-11	25	10-20 (0.39''-0.79'')	279 (11'')
2525-11	32	12-28 (0.47''-1.10'')	279 (11'')
2635-9	35	14-30 (0.55''-1.18'')	229 (9'')
2635-11	35	14-30 (0.55''-1.18'')	279 (11'')
2740-6	40	17.5-33 (0.69''-1.30'')	152 (6'')
2740-8	40	17.5-33 (0.69''-1.30'')	203 (8'')
2740-10	40	17.5-33 (0.69''-1.30'')	254 (10'')
2740-12	40	17.5-33 (0.69''-1.30'')	305 (12'')
2740-16	40	17.5-33 (0.69''-1.30'')	406 (16'')
2853-6	53	25-46 (0.98''-1.81'')	152 (6'')
2853-12	53	25-46 (0.98''-1.81'')	305 (12'')
2853-18	53	25-46 (0.98''-1.81'')	457 (18'')
2970-6	70	32-65 (1.26''-2.56'')	152 (6'')
2970-12	70	32-65 (1.26''-2.56'')	305 (12'')
2970-14	70	32-65 (1.26''-2.56'')	355 (14'')
3104-9	104	43-94 (1.69''-3.70'')	229 (9'')

Technical Data

Property and test data

Property	Test data
100% Modulus ASTM D 412	1.17 Mpa
300% Modulus ASTM D 412-75	4.7 Mpa
Ultimate Tensile ASTM D 412-75 Original	11.6 Mpa
Ultimate Elongation ASTM D 412-75 Original	635%
Dielectric strength ASTM D 149-75 Original @1.78mm	19.1 mv/m
7 days in H₂O at 90°C	18.1 mv/m
Dielectric Constant Original	5.0
7 days 90°C ()	5.0