Oval cylinder Welka 27-27 with thumbturn

The Oval cylinder Welka 27-27 with thumbturn is made by the renowned Italian manufacturer Welka® and is intended for all locks with a standard oval hole of 13 × 28 mm and a central cam position – it is not limited to Welka locks. It is not interchangeable with standard euro profile (PZ) cylinders.

On the inside there is a turn knob for operating the lock mechanically without a key, while the outside is opened with a standard key. The knob is round, 30 mm in diameter, and protrudes 20 mm from the end of the cylinder body.

The cylinder body is made of brass and the turn knob of zinc alloy (zamak); the nickel-plated finish provides wear and corrosion resistance and an elegant look. The locking mechanism has 4 pins, which corresponds to a basic security level – a standard oval cylinder for everyday use, without a security certification.

The cylinder is supplied with 3 keys, in the size 27-27 mm: the body is 54 mm long, 74 mm including the knob.

Product description

• Material: brass (body), zinc alloy (knob)
• Finish: nickel-plated
• Colour: nickel
• Version: oval cylinder with a turn knob on the inside, profile 13 × 28 mm
• Security level: basic (4 pins, no security certification)
• Manufacturer: Welka®, Italy

Technical specifications

• Size: A 27 mm, B 27 mm, body length 54 mm
• Knob: round, Ø 30 mm, protrudes 20 mm from the end of the body (30 × 30 × 20 mm)
• Total length with the knob: 74 mm
• Profile: oval, 13 × 28 mm
• Number of pins: 4
• Mounting: in place of the existing oval cylinder in the lock
• Not interchangeable with standard euro profile (PZ) cylinders

Application and use

• For locks with an oval hole
• For Welka® locks and for other makers’ locks with a 13 × 28 mm oval hole – with other makers check that the position and shape of the cam match
• Locking from the inside without a key, by turning the knob
• Opening from the outside with a standard key

Package contents

• 1 Oval cylinder Welka 27-27 with thumbturn
• 3 keys

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