LOCKABLE LINE VALVE – MEDICAL

Medical Fittings
PartDescriptionSize 1BagBox
MEDLLV01515MM LOCKABLE LINE VALVE MEDICAL15MM11
MEDLLV02222MM LOCKABLE LINE VALVE MEDICAL22MM11
MEDLLV02828MM LOCKABLE LINE VALVE MEDICAL28MM11
MEDLLV03535MM LOCKABLE LINE VALVE MEDICAL35MM11
MEDLLV04242MM LOCKABLE LINE VALVE MEDICAL42MM11
MEDLLV05454MM LOCKABLE LINE VALVE MEDICAL54MM11
MEDLLV07676.1MM LOCKABLE LINE VALVE MEDICAL76.1MM11
MEDLLV108108MM LOCKABLE LINE VALVE MEDICAL108MM11
  • Lockable Line Valves consist of a purpose designed male threaded brass ball valve fitted with copper pipe stubs
  • The copper pipe stubs enable installation utilising fluxless brazing to WKO(82)1
  • The flat face union between stub and valve incorporate o-ring seals ensuring gas tight connections
  • The valve handle is lockable in the open or closed position to prevent unauthorised or inadvertent operation of the valve
  • Rated for use up to 2500 kPa
  • Available for standard pipe work sizes from ø15mm to ø54mm. Larger sizes are also available
  • All components are bright acid dipped and vapour degreased prior to assembly
  • Lockable Line Valves are 100% tested for leaks to atmosphere and isolation when in the closed position

Technical Data

Product Overview

Lawton Medical Gas Capillary Fittings are designed for use in medical gas pipeline systems, providing a reliable and compliant jointing solution for healthcare and specialist commercial installations. Manufactured from high-quality copper and brass materials, the range is available in sizes from 8mm to 219mm and complies with the requirements of HTM 02-01 and EN 1254-1.

Applications

  • Medical Gas Pipeline Systems (MGPS)
  • Healthcare Facilities
  • Hospitals
  • Laboratories
  • Specialist Commercial Installations

Market Sectors

  • Public Sector
  • Commercial

Product Specifications

Property

Specification

Size Range

8mm – 219mm

Materials

CW024A Copper, CW614N Brass

Jointing Methods

Soldering, Brazing

Manufacturing Standard

EN 1254-1

Performance Standards

EN 1254-1, HTM 02-01

Electrical Continuity

Yes

Form of Supply

Individual Bags and Boxes

Product Marking

Permanent Marking, Lawton Logo, Size

Thread Specification (Male)

ISO 7 / EN 10226-1

Thread Specification (Female)

BS EN ISO 228

Inner Surface Quality

Clean and Smooth, Carbon Content ≤ 1.0 mg/dm²

Warranty

75 Years*

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

Standards & Compliance

Category

Standard

Manufacturing Standard

EN 1254-1

Performance Standard

EN 1254-1

Medical Gas Compliance

HTM 02-01

Brazing Alloy Standard

EN ISO 17672

Soft Solder Standard

EN ISO 9453

Material Composition

Property

Value

Copper Content (Including Silver)

≥ 99.90%

Phosphorus

0.015 – 0.040%

Total Impurities (Excluding Phosphorus and Silver)

< 0.060%

Melting Point

1083°C

Density

8.96 g/cm³

Maximum Operating Pressure (Soft Soldered Joints)

Soft solder: tin/copper or tin/silver alloys to EN ISO 9453.

Nominal Size

-40°C

30°C

65°C

110°C

8mm – 28mm

25 bar

25 bar

25 bar

16 bar

35mm – 54mm

25 bar

25 bar

16 bar

10 bar

66.7mm

16 bar

16 bar

16 bar

10 bar

Important: Fittings above 66.7mm should not be assembled using soft solder due to insufficient mechanical strength.

Maximum Operating Pressure (Brazed / Hard Soldered Joints)

Hard solder (brazing alloy) in accordance with EN ISO 17672.

Nominal Size

-40°C

65°C

120°C

150°C

200°C

8mm

62.5 bar

62.5 bar

58.8 bar

46.7 bar

23.3 bar

10mm

50.9 bar

50.9 bar

47.9 bar

38.0 bar

19.0 bar

12mm

42.9 bar

42.9 bar

40.3 bar

32.0 bar

16.0 bar

15mm

40.3 bar

40.3 bar

37.9 bar

30.1 bar

15.0 bar

22mm

35.6 bar

35.6 bar

33.5 bar

26.6 bar

13.3 bar

28mm

28.2 bar

28.2 bar

26.5 bar

21.1 bar

10.5 bar

35mm

25.2 bar

25.2 bar

23.7 bar

18.8 bar

9.4 bar

42mm

23.2 bar

23.2 bar

21.8 bar

17.3 bar

8.6 bar

54mm

19.8 bar

19.8 bar

18.6 bar

14.7 bar

7.4 bar

66.7mm

18.6 bar

18.6 bar

17.5 bar

14.0 bar

6.9 bar

76.1mm

18.6 bar

18.6 bar

17.5 bar

14.0 bar

6.9 bar

108mm

17.2 bar

17.2 bar

16.2 bar

12.9 bar

6.4 bar

133mm

10.5 bar

10.5 bar

8.5 bar

7.7 bar

4.1 bar

159mm

11.7 bar

11.7 bar

9.7 bar

8.6 bar

4.6 bar

219mm

12.8 bar

12.8 bar

10.4 bar

9.4 bar

5.0 bar

Installation & Performance

Property

Specification

Jointing Method

Soft Soldering or Brazing

Electrical Continuity

Yes

Surface Quality

Clean, smooth internal bore

Maximum Carbon Content

≤ 1.0 mg/dm²

Product Identification

Permanent Marking

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