John Mills BS7291, KM39767 manual Technical Checklist Plumbing and Heating Fittings

TECHNICAL CHECKLIST -

PLUMBING AND HEATING FITTINGS

Fittings and pipe should be kept clean and undamaged before use.

• Sizes. 10mm to 28mm diameter. Speedfit fittings can be used with:

• Pipes. Copper pipe to BS EN 1057 Speedfit Barrier Pipe to BS7291.

Speedfit fittings cannot be used on stainless steel pipe. Speedfit products are designed and manufactured

• underStandardsfully. integrated system assessed by B.S.I. to BS EN ISO9001. They are approved by the WRAS and BBA. Speedfit PEM, PSE and SFM Fittings and Speedfit Barrier Pipe are Kitemarked to BS7291 Parts 1, 2 and 3, Class S. (Licence No. KM39767)

• Applications.
Mains fed and indirect cold water systems
Vented and unvented hot water systems
Vented and sealed central heating systems
• Do not use for Gas, fuel oil or compressed air applications.
• Working temperatures and pressures
Application	Usual working		Maximum working	Maximum working
	temperature, ºC		temperature, ºC	pressure, bar
Cold Water		20	20	12
(indirect and direct mains)		82	105, short term	3
Central Heating
			malfunction at 114
Hot Water		65	95	6
(including unvented cylinders)

With copper or plastic pipe at 20°C: Speedfit

• fittingsBurst Pressureused with(fittings)copper or. Speedfit Barrier Pipe will withstand pressures well in excess of normal service conditions.

Can withstand 114°C intermittently for short periods.

• TheHighSpeedfittemperatursystem. should not be used on an uncontrolled heat source. Should comply with BS6700 and BS5422, as for copper.

•Insulation.

•Minimum bend radii (PEX)

Pipe diameter10mm 15mm 22mm 28mm

Min radius with clips100mm 175mm 225mm 300mm

Min radius with cold forming bend 30mm 75mm 110mm -

•ClipFor surfacesp ingmounted(in mm)pipes.

Pipe Diameter	Clip Spacing
	Horizontal Run	Vertical Run
10 - 15mm	300mm	500mm
22mm	500mm	800mm
28mm	800mm	1,000mm
Where pipe is concealed, clipping may only be required where necessary.

• Expansion (PEX pipe). 1% on length between 20°C and 82°C.
• Flow rates. Comparable with metal systems.
•	Clean rs, in ibitors and descalents. For advice on the replenishment of
	additives such as corrosion inhibitors, the following manufacturers should
	be contacted: Fernox Manufacturing Limited on 01799 550811 or Sentinel,
	BetzDearborn Limited on 0151 420 9595.
• Paint and Chemicals. Use only water or oil based paint. Collet covers
	prevent paint ingress into fittings. DO NOT ALLOW CONTACT WITH
	oil based jointing compounds, cellulose based paints, paint thinners, paint
	strippers, solder flux, acid based descalents or aggressive cleaning products.
•	Solder Flux. No fluxes of any types should come into contact with
	JG Speedfit Pipe and Fittings. If fluxes are to be used in an environment
	where Speedfit is installed, then (1) extreme care should be taken to ensure
	that no such contact takes place and (2) JG recommend installers only use
	fluxes tested and approved in writing in advance by JG. At the date of this
	publication, the only such approved flux is Fernox Flux.

• Chlorine. Speedfit is not suitable for use in systems where the water
	contains high levels of chlorine. e.g. swimming pools, fountains etc.
•	Exposure to		. Speedfit products, when used indoors, are not
	affected by sunlight. When used outdoors protect from ultra violet light
	by lagging or painting.
• Pipe clips. Pipe clips should not be fitted any closer than 60mm from the
	end of the fitting. Pipe should be adequately supported by pipe clips to
	prevent undue stress (side load) on fittings.
• Pipe inserts. Must be used on all installations when using plastic pipe
	and should be fully inserted. Only use a Speedfit Insert with Speedfit Pipe.
• Metal Joists. When ʻcablingʼ plastic pipe through metal joists ensure rubber
	grommets are in place to prevent damage to pipe. Use of collet covers or
	collet clips on fittings recommended.
•	Conn	ction to boil rs. A minimum 1000mm run of copper pipe must be
	installed between the boiler and the Speedfit system, as per BS5955: Part 8.
•	Connection to		pper pi . 450mm is the minimum distance to make
	a solder connection on copper pipe inserted into a Speedfit Fitting. Ensure
	that any residual flux solder does not come into contact with the fitting.
• Concrete and masonry. Speedfit pipe and fittings can be laid in concrete
	and masonry providing they are installed in conduit pipe with access boxes
	for the fittings. This is to enable the pipe to expand and provide accessibility
	for both pipe and fittings. As stated in Water Regulation Scheme 2.7 and BS
	8000 : Part 15, fittings and pipe should be removable for possible replacement.
	Insulation is also recommended to protect against heat loss and the effects
	of frost.
• Electrical continuity. If Speedfit is used in an existing metal system which
	may have been used for earthing, electrical continuity should be reinstated.
• Valves and taps. Plastic 15mm and 22mm valves and taps available from
	JG Speedfit Ltd are not suitable for central heating installations.
• Collet Covers.			Collet covers provide added security against pipe
	disconnection, e.g. the fittings coming into contact with rigid surfaces
	and behind dry-lining walls. They are offered in white as standard and
	in red or blue to provide colour coding of pipe.
• Collet Clips. Grey collet clips are used with standard fittings to prevent
	accidental pipe disconnection. Red or blue clips provide colour coding
	of pipe. Red and blue clips should not be used to prevent accidental
	release of pipe.
• System testing. To ensure the pipework and fittings have been installed
	correctly, whether it be on a new or extended system, it is essential that the
	system is checked and hydraulically wet tested. Testing should be at 2 bar
	for 10 minutes and 10 bar for 10 minutes. This testing, combined with other
	relevant checks, should reveal installation problems and is regarded as good
	plumbing practice. However, system testing should not be regarded as a
	substitute for correct installation (see also “Making a Good Connection”).
•	Syst	flushing. As is usual practice for any plumbing installation, flushing
	of thesystem prior to the use of Speedfit is recommended to remove any
	contaminants/chemical residue from elsewhere in the system.

British Gas Service has accepted the John Guest Speedfit fittings as being

• suitable for open vented and sealed central heating systems and as eligible for acceptance onto its service contracts.

Speedfit products will need special protection in vermin infested areas.

•Vermin.

Plastic threads are not generally as

• strongMaximumas brassTorquethreadsfigures. Customers(BSP & BSPT)and end. users should be aware of this when choosing products for their applications. Overtightening of plastic threads will cause undue stress and eventual cracking and leakage. The maximum torque figures for BSP and BSPT threads used on Speedfit plumbing products in mating threads conforming to the relevant BS or International thread standards are shown below.

Plastic	1/2”	3.0 Nm
Threads	Size	Maximum Torque
	3/4”	4.0 Nm
Brass	1/2”	4.0 Nm
	3/4”	5.0 Nm

It is recommended that all installations are checked prior to use to determine that seal has been made.

Fittings should not be subject to excessive side loads and they

• shouldSide Loadsnot be. used as support brackets. Tubing and fittings should be adequately supported to prevent excessive side loading.

TECHNICAL CHECKLIST -

UNDERFLOOR HEATING

• Applications. Underfloor Heating Installations in solid or timber floors.

• Pipes. 15mm JG Speedfit Barrier Pipe to BS 7291, Parts 1, 2 and 3 Class S.

• DO NOT USE Speedfit UFH Products for Gas, fuel oil or compressed

	air applications.		Should be a suitable material and thickness to comply
• Floor Insulation.
	with current regulations.
• Minimum Bending Radii. For Speedfit B-PEX Pipe is 175mm.
• Expansion (PEX - Pipe). 1% on length between 20˚C and 82˚C.
•	Clean	rs, In ibitors and Descalents. For advice on the replenishment of
	additives such as corrosion inhibitors, the following manufacturers
	should be contacted Fernox Manufacturing Limited on 01799 550811 or
	Sentinel, BetzDearborn Limited on 0151420 9595.
•	Paint and Chemi als. Only use water or oil based paint. DO NOT ALLOW
	CONTACT WITH cellulose based paints, paint thinners or strippers, solder
	flux or acid based descalents or aggressive household cleaning products.
•	Exposure to		. Speedfit products, when used indoors, are not
	affected by sunlight. When used out doors protect from ultra violet light
	by lagging or painting.
•	Pipe Ins rts. Must be used on all installations when using plastic pipe and
	should be fully inserted.
•	Electrical Compo		nts. Electrical products in the Speedfit Underfloor Heating
	Systems are designed only to be used in U.K. Electrical Supply situations.
• Electrical Continuity. If Speedfit is used in an existing metal system which
	may have been used for earthing, electrical continuity should be reinstated.
•	Coll	Clips. White and Grey collet clips are used with standard fittings to
	prevent accidental pipe disconnection. Red or blue clips provide colour
	coding of pipe. Red and blue clips should not be used to prevent accidental
	release of pipe.

To ensure the pipework has been installed

• correctlyPre-ScreedandSystemprior to theTestingscreed. being laid, it is essential that the system is checked and hydraulically wet tested.

Testing should be carried out at 2 bar for 10 minutes and 10 bar for

10 minutes.

This testing, combined with other relevant checks, should reveal installation problems and is regarded as good plumbing practice.

• Pressurisation During Screed Laying & Curing. In accordance with BS1264-4, the system should be left under pressure at a minimum of 6 bar for the duration of the laying and curing of the screed.

Under NO circumstances should the UFH System be used to quicken

the screed drying process.

As is usual practice for any plumbing installation,

• flushingSy tem ofFlushingthe system. prior to the use of JG Speedfit is recommended to remove any contaminants/chemical residue from elsewhere in the system.

Speedfit products should not be used in vermin infested areas.

•Vermin.

During the installation process it is important that pipe

• containingFrost Protectionwater be. protected from frost.

TECHNICAL CHECKLIST -

UNDERGROUND FITTINGS

• Applications. Speedfit Underground Fittings are designed to connect
	MDPE pipes (MRS-PE80) used above or below ground, to convey
	potable water from distribution mains to individual properties.
• Sizes. 20mm and 25mm with adaptors for:-
	- Copper to BS2871 Part 1 / BS EN1057. Table X and Table Y.
	- Screwed pipe.
	- LDPE (to BS1972 Class C and Class D) in 1/2” and 3/4” inch sizes.
• Pipes. Speedfit Underground Fittings can be used with:-
	- Blue MDPE pipe to BS6572.
	- Black MDPE pipe to BS6730.
	- Pipes conforming to ISO161/1, ISO3607 and DIN16893.
• Working Temperatures and Pressures.			Maximum working pressure
	12 Bar @ 20˚C.
• St ndards. Speedfit Underground Fittings are approved by the
	Water Regulations Advisory Scheme.
• Performance. The fittings are manufactured from tough plastic
	material well able to meet the stringent requirements of the water
	industry. They have been approved by the WRAS and, as such,
	have passed the ʻpull out testʼ where a force shown below is applied
	to a connection between MDPE pipes and a fitting for 5 minutes
	without the connection failing.	20mm	Size	25mm
	Test Force
	Newtons	1900		2500
	lbs	427		562

• DO NOT USE FOR Gas, fuel oil or compressed air applications

	or hot water.
• Chemical Effects. For below ground applications the fittings require
	no additional preparations - coating etc. When used above ground,
	avoid contact with aggressive chemical compounds. Protect from frost
	where necessary. In the United Kingdom, potable water does not
	contain high levels of chemicals (eg chlorine etc) that would adversely
	affect Speedfit Underground Fittings.
• Exposure to sunlight. Permanent exposure to direct sunlight will
	necessitate lagging the fittings.
• Pipe Inserts.		Pipe inserts must be used and fully inserted on all
	connections to MDPE or LDPE pipe.
• System T sting. Pressure test to 1.5 times working pressure for 10
	minutes before connecting to the mains supply. It is recommended
	that all pipe and fitting installations are pressure tested after
	installation before handing over to the final user
• Maximum Torque Figures. The maximum torque figures for BSP
	and BSPT threads used on Speedfit products are as follows:-
1/2		3.0 Nm
	Size	Maximum Torque
	3/4	4.0 Nm

It is recommended that all installations are checked prior to use to determine that a seal has been made.

The maximum torque figures quoted for use with Speedfit fittings are dependent on the mating thread conforming to the relevant British International thread standards.

29 30