Lever Ball

Valves

Product Code	Product description	Size	Small box	Large Box
4444015	15MM LEVER BALL VALVE PRESS	15MM	12	96
4444022	22MM LEVER BALL VALVE PRESS	22MM	8	64
4444028	28MM LEVER BALL VALVE PRESS	28MM	4	24

Press Fit Lever Ball Valve

The Lawton Tubes Press Fit Lever Ball Valve is designed to provide reliable on/off flow control within press-fit pipework systems. Manufactured from high-quality brass with a full bore design, it delivers efficient flow performance across potable water, heating and cooling applications.

The press-fit connection enables a fast, heat-free installation without the need for soldering, welding or hot works, helping to reduce installation time and improve site safety. Featuring PTFE seals, an EPDM O-ring and Lawton‚Äôs black visual press indicator, it provides a secure, leak-tight connection with easy installation verification.

WRAS and KIWA Regulation 4 approved, the valve is backed by a 5-year warranty for dependable long-term performance.

Key Features

Reliable on/off flow control for press-fit pipework systems
Fast, heat-free press installation
No soldering, welding or hot works required
Full bore brass ball valve design
PTFE seals and EPDM O-ring for secure sealing
Lawton black visual press indicator for installation verification
Red and blue lever identification
WRAS and KIWA Regulation 4 approved
Suitable for potable water, heating and cooling systems
Available in 15mm, 22mm and 28mm sizes
Backed by a 5-year warranty

Technical Data

Product Overview

Lawton 316L Stainless Steel Press Fittings provide a reliable, heat-free jointing solution for potable water, heating and cooling systems. Manufactured from AISI 316L stainless steel, the range is available in sizes from 15mm to 168.3mm and features an M-profile press connection for fast installation without soldering or hot works.

Applications

Potable water systems
Heating systems
Cooling systems
Chilled water systems
Oil-free compressed air systems
Vacuum systems
Rainwater harvesting systems

Market Sectors

Domestic
Commercial
Industrial

Product Specifications

Property	Specification
Material	1.4404 (AISI 316L) Stainless Steel
Size Range	15mm – 168.3mm
Seal Material	Black EPDM O-Ring
Press Profile	M-Profile
Maximum Operating Pressure (Liquid)	16 bar (-20°C to +110°C)
Minimum Operating Pressure	-0.8 bar (gauge)
Maximum Operating Pressure (Oil-Free Compressed Air)	10 bar (5°C to 35°C)
Product Marking	Size, LTC Logo, Material Grade, MFG Date, DVGW
Electrical Continuity	Yes
Warranty	50 Years*

Subject to standard Terms & Conditions. Please refer to our website for full details.

Key Features

Leak Before Press technology (up to and including 54mm)
Blue press indicator
No soldering required
No hot works permits required
Suitable for potable water applications
WRAS-approved sealing materials
Electrical continuity throughout the system
Fast, flame-free installation

Standards & Compliance

Category	Standard
Fitting Material	EN 10088
O-Ring Material	EN 681-1
Thread Specification (Male)	ISO 7 / EN 10226-1
Thread Specification (Female)	BS EN ISO 228
Tube Compatibility Standards	EN 10312, EN 10217-7
Certification	DVGW Certified

Operating Performance

Property	Value
Maximum Liquid Pressure	16 bar
Maximum Oil-Free Compressed Air Pressure	10 bar
Minimum Pressure	-0.8 bar (vacuum)
Operating Temperature Range	-20°C to +110°C
Electrical Continuity	Yes

Tube Compatibility

Compatible with stainless steel tubes manufactured to EN 10312 and EN 10217-7. Fittings accept both Series 1 and Series 2 tube dimensions.

Tube OD (mm)	EN 10312 Series 1 Wall Thickness (mm)	EN 10312 Series 2 Wall Thickness (mm)
15	0.6 ✓	1.0 ✓
18	0.7 ✓	1.0 ✓
22	0.7 ✓	1.2 ✓
28	0.8 ✓	1.2 ✓
35	1.0 ✓	1.5 ✓
42	1.1 ✓	1.5 ✓
54	1.2 ✓	1.5 ✓
66.7	1.2 ✓	—
76.1	1.5 ✓	2.0 ✓
88.9	—	2.0 ✓
108	1.5 ✓	2.0 ✓
139.7	2.0 ✓	2.6 ✓
168.3	2.0 ✓	2.6 ✓

Recommended Minimum Fitting Clearance

To allow for tube deformation during pressing, the following minimum distances should be maintained between adjacent fittings.

Tube Size	Minimum Clearance F (mm)
15mm	13
18mm	13
22mm	13
28mm	13
35mm	13
42mm	16
54mm	20
66.7mm	30
76.1mm	40
88.9mm	45
108mm	50
139.7mm	60
168.3mm	70

Approved Press Tools

Lawton 316L Press Fittings are approved for use with M-profile press tools from:

Novopress
Geberit
Rothenberger
REMS

Important: Matching press tools, adaptors, jaws and slings from the same manufacturer must always be used during installation.

Water Quality Guidance

316L stainless steel offers excellent corrosion resistance for potable water systems.

Chloride ion content in potable water should not exceed 250 mg/l.
316L stainless steel can tolerate chloride concentrations up to 1000 mg/l, but prolonged exposure at elevated temperatures may increase the risk of pitting or crevice corrosion.
Where chlorine-based disinfection is used, application duration and concentration should be carefully controlled.
Water treatment products must be compatible with stainless steel systems.

Material Compatibility

Dissimilar Metals

Installations containing mixed metals should generally be avoided, as galvanic corrosion can occur when metals with significantly different electrochemical properties are connected directly together.

Where mixed-metal systems are unavoidable:

Follow the Water Regulations Guide.
Apply recognised good engineering practice.
Use appropriate isolation measures where required.

Grade Compatibility

304 and 316L stainless steel fittings and tube may be used within the same installation.
Overall corrosion resistance will be determined by the least corrosion-resistant component within the system.
For potable water applications, 316L is the preferred material due to its enhanced resistance to chloride-induced corrosion.