ABS PIPE SYSTEMS

ABS Pipe, ABS Fittings and ABS Valves for low temperature fluid transportation

Durapipe ABS Pipe Systems combines corrosion resistance, toughness and economic benefits to provide tremendous advantages for low temperature fluid transportation.

ABS is a solvent welded, fully matched pipework system incorporating ABS Pipe, ABS Fittings and ABS valves that is available in both imperial and metric sizes.

ABS provides a wide temperature range and the system remains extremely ductile even at temperatures as low as -40°C. Furthermore, ABS is extremely lightweight and is much easier to handle on-site than traditional materials especially during installation which can significantly reduce both time and cost.

Kwerk GmbH reserves the right to modify the details in this publication as products and specifications are updated and improved.

The content of this publication is for general information only and it is the user’s responsibility to determine the suitability of any product for the purpose intended.

For further information on all Kwerk GmbH products and services contact our Customer Services Department as detailed below.

Customer Services
Tel: 0049 2602 999730
Fax: 0049 2602 9907329
Email: info@kwerk.de

TECHNICAL SPECIFICATION ABS PIPE SYSTEMS

TYPICAL ABS APPLICATIONS

- Chilled Water
- Boosted cold water
- Potable Water
- Low temperature cooling
- De-mineralised water

KEY PRODUCT FEATURES FOR ABS PIPE SYSTEMS

- Lightweight
- Easy to install
- Wide temperature range
- Tough and Durable
- Corrosion resistant
’Common Arrangements of Works Systems’ (CAWS) - applicable to S30

KEY PRODUCT ABS PIPE SYSTEMS INFORMATION

DURAPIPE ABS PIPES
KIWA 49, ISO 161/1, and ISO DIS 15493 (where applicable). Pressure rating PN10 at 20°C up to 250 mm. PN8 at 20°C for 315 mm.
DURAPIPE ABS FITTINGS
KIWA 549, ISO 727 and ISO DIS 15493 (where applicable). Pressure rating PN10 at 20°C up to 250 mm. PN8 at 20°C for 315 mm.

MATCHED SYSTEM

The ABS products shall be from a single manufacturer to ensure complete integrity, quality and compatibility between pipes, fittings and valves. Manufacturers warranties may be compromised if a system is installed with materials from various manufacturers. Where this is not possible then any alternative products should be confirmed as being at least equivalent to that which is normally supplied.

QUALITY SYSTEM

Pipes, fittings and valves shall be manufactured in an environment which operates a Quality Assurance System assessed to ISO 9001

ENVIRONMENTAL SYSTEM

The manufacturer of pipes, fittings, and valves shall be able to demonstrate compliance with applicable environmental legislation and products shall be manufactured in an environment where documented performance reviews are undertaken and an Environmental Management System is successfully assessed to ISO 14001.
The manufacturer shall offer ABS solvent cements and cleaners, specially formulated to minimise any adverse effects on the environment during installation of the ABS system.

THIRD PARTY APPROVALS

The manufacturer shall have the following Third Party Approvals:

WRAS Water Regulations Advisory Scheme
0510074 for Durapipe Metric pipes and fittings 0702501 for Durapipe one-step solvent cement (5560)
DEPARTMENT OF HEALTH AND SOCIAL SECURITY
Renal Dialysis Applications
DET NORSKE VERITAS BUREAU VERITAS
APPROVAL FOR USE IN CONTACT WITH DRINKING WATER
All ABS pipes, fittings and solvent cement shall be listed in the Water Fittings and Materials Directory to show compliance with the requirements of the United Kingdom Water Regulations Advisory Service.
Copies of certification of compliance with these approvals are available
for inspection.

DESIGN LIFE

Pipes, fittings and valves shall be designed to operate continuously for 50 years at their maximum rated pressure at a working temperature of 20°C.
Process Control Testing must be carried out during manufacture and documented on each and every production batch.
Fittings and Pipes will be subjected to a pressure test of 3.2 x maximum recommended working pressure for 1 hour at 20°C during 1st and 2nd hours of production, then every 6 hours for fittings and 8 hours for pipes.
Pipes are in addition to be impact tested after conditioning at 0°C for 1 hour. Fittings are in addition to be subject to stress relief testing at 150°C.
Pipes and fittings shall undergo dimensional, marking, and visual inspection at the frequency outlined above.

CHEMICAL SUITABILITY

The manufacturer shall publish detailed chemical resistance data to enable the suitability of the ABS material, seals, and gaskets to be determined by designers and specifiers.
The manufacturer shall also employ a qualified and experienced Chemist and provide a free-of-charge advisory service for assessing the suitability of its
ABS material, seals, and gaskets.

INSTALLATION SPECIFICATION

The installation must be carried out by competent persons.
The contractor shall be required to provide technical documentation relating to the manufacturers recommended Installation procedures.
The manufacturer shall publish Installation recommendations, and shall also provide a free-of-charge training service for designers and installers, with appropriate written confirmation of attendance.

DURAPIPE ABS BALL VALVES

True union design, end load resistant with full pressure and shock resistant anti blow out device which conforms to design and endurance testing requirements of
BS 5392 Part 1 1976, and DIN 3230 Part 3 Leak Rate One (Water and Air).
The following testing will have been successfully completed:
Drop Tight and Bubble Tight test.
Hydrostatic Shell Test 1.5 x maximum working pressure Seat Test 1.1 x maximum working pressure.

PRESSURE RATING

16mm to 63mm - PN 16 at 20°C (VKD series), PN10 (EV series) 75mm to 110mm - PN16 at 20°C (VKD series)

SEATS AND SEALS

Seats: PTFE material fitted with O-Ring compensators. Seals: Standard size O-Ring type for ease of replacement. Available in EPDM or FPM materials.

ND CONNECTIONS

Plain socket ends or BSP threaded.

ACTUATION

Options: Electric or Pneumatic.

DURAPIPE ABS DIAPHRAGM VALVES

Equipped with a maintenance free hand wheel actuator with spindle extension to indicate the position of the valve open or closed. The body retaining bolts are fixed from the underside, to provide a crevice free outer surface to prevent accumulation of debris or risk of corrosion of exposed steel bolts from chemical spillage.
Valves will have been hydrostatically pressure tested to the requirements of
BS 5392 Part 1 1976, BS 5156, ISO 7508 and DIN 3230 Part 3 Leak Rate One.

PRESSURE RATING
20mm to 110mm - PN10 at 20°C

DIAPHRAGM TYPE

Choice of EPDM, FPM or PTFE will be available.

END CONNECTION

These may be plain spigot ends or flanged.

ACTUATION

Options: Pneumatic

DURAPIPE ABS BALL CHECK VALVES

These shall be double union with plain socket or BSP threaded ends.

PRESSURE RATING

20mm to 63mm - PN10 at 20°C.

SEALS

Available in either EPDM or FPM.

DURAPIPE ABS BUTTERFLY VALVES

Reinforced Polypropylene body, fully lined, with ABS disc.
Full flanged design, with oval holes/inserts to suit various standard flange drillings. Lever operated, with 10 x 10° position stops, and locking device

PRESSURE RATING

50mm to 250mm - PN 10 at 20°C 315mm - PN 8 at 20°C

PRIMARY LINER

Available in EPDM, FPM, or NBR.

ACTUATION

Electric, Pneumatic, or Gearbox (standard on sizes over 225mm).

Mechanical and Physical Data	Value	Tes Method
Tensile strength at yield (23ºC)	45 MN/m2	ASTM D632
Tensile modulus of elasticity	2200 MN/m2	ASTM D635
Poissons ratio)	0.35	-
zod impact strength at 23ºC (notched)	35 KJ/m2	ASTM D256 (1/8”)
Charpy impact strength at 23ºC (notched)	20kJ/m2
Specific gravity	1.04	ASTM D792
Softening point (BS2782:Part 1 Method120B:1976)	99°C	ISO R 306 (5kg) (heating rate unknown)
Linear co-efficient of thermal expansion	10.1 x10-5/ºC
ISO75 HDT/Ae 1.8Mpa	78°C	ASTM D648 (unannealed, 1/4”, 18.56 Kgf/cm2)
Thermal conductivity	0.157W/mºC
Specific heat	2.1kJ/kg.K

ABS Fittings pressure drop

The calculation of pressure drop in fittings is more complex but calculations can be made for equivalent lengths of straight pipe using the formula

E=F x D where:
E = equivalent pipe length (metres)
F = fittings constant (see table below)
D = fitting internal diameter (mm)

To calculate the total pressure drop in the system, the equivalent straight pipe lengths for fittings is then added to the total straight pipe length to obtain the total drop.
The values are included as a guide to aid calculation of overall system performance and should not be used in isolation.

Fittings constant	F
90° elbow	0,03
45° elbow	0,01
Tee 90° -straight thourgh	0,01
Tee 90° -side branch	0,06
90° bend	0,01
45° bend	0,01
Reducing bush	0,15 (per size reduction)
Butterfly valves	0,13
Diaphragm valves	0,23
Check valves	0,05

ABS Pipe supports

Pipe supports and clips should provide lateral restraint and allow free, unrestricted, axial pipe movement. Standard ‘drop rods’ may not provide sufficient lateral restraint and the SuperFLO ABS pipe could start to ‘snake’.

Durapipe Cobra clips are designed to meet these requirements. A suitable alternative would be mild steel saddle clips designed with a clearance between the pipe and the clip. All steel brackets in contact with the plastic pipe should be free of sharp edges to avoid damaging the pipe.

Support centres

The recommended distance between supports for SuperFLO ABS pipes filled with water is given in the table below. This table is based on the thinnest wall pipe in each size.

Where the contents have a specific gravity greater than 1, the distance must be decreased by dividing the recommended centre distances by the specific gravity. The details shown are for horizontal pipes. For vertical pipes, support centres may be increased by 50%.

Size mm	Support distance (mm) at 20°C	Support distance (mm) at 40°C	Support distance (mm) at 50°C
16	800	600	500
20	900	700	600
25	1000	800	700
32	1100	900	800
40	1200	1000	900
50	1300	1100	1000
63	1400	1200	1100
75	1500	1300	1200
90	1600	1350	1200
110	1800	1470	1300
125	1900	1570	1400
140	2000	1670	1500
160	2100	1770	1600
200	2200	1870	1700
225	2300	1970	1800
250	2500	2200	2000
315	2900	2570	2400