Kosaplus UK · Valve Actuators
About Kosaplus UK
We are the authorised UK distributor of KOSAPLUS pneumatic and electric valve actuators, made by KOSAPLUS Co., Ltd. of Siheung, South Korea. We are the UK point of contact for the engineers and buyers who specify, price and source them.
1991
Manufacturer established
Siheung
Korean design, manufacturing and testing
232,670
Actuators made each year
CE · ATEX · SIL
Certified pneumatic range
Who we are
A UK distributor, focused on getting the specification right
Kosaplus UK supplies KOSAPLUS valve actuators and position indicators to engineers, procurement teams, valve suppliers and plant operators across the United Kingdom. We are part of Valvenok Ltd., based in Bicester, Oxfordshire.
We are a distributor, not a manufacturer. The actuators are designed, made and tested by KOSAPLUS Co., Ltd. in Korea. Our role is to make that range easy to buy here, with the technical information you need to specify it right the first time and one UK contact from enquiry to delivery.
What we supply
Pneumatic actuators (scotch yoke and rack & pinion), electric actuators (quarter turn, explosion proof and fast-acting) and valve position indicators, for ball and butterfly valves.
Why work with us
Our role in the UK
Most of the work happens before the order. Engineers come to us with a valve, a torque and a supply; buyers come with a model code that needs pricing, or a list that needs checking.
Product enquiries
A UK contact who answers the technical question, in UK working hours.
Actuator selection
Matching your valve to a series and size: torque, supply, double acting or spring return, fail position and options.
Documents and certificates
Datasheets, dimensional drawings and certificates on request, from CE to ATEX and SIL.
Specification review
A second check before the order goes in: we confirm model codes and flag anything that doesn't match the valve.
Formal quotations
Written and itemised, against your specification.
Order coordination and after-sales
Placing and tracking the order, with one UK contact from enquiry to delivery and afterwards.
The manufacturer
About KOSAPLUS
KOSAPLUS Co., Ltd. was established in 1991 and is based in Siheung, South Korea, with its own design, manufacturing and testing lines. It started with the scotch yoke actuator, valued for high torque in a compact body, and later added rack & pinion, electric and explosion-proof ranges.
Production is automated for consistent quality, and the company makes 232,670 actuators a year. Pneumatic bodies are hard-anodised for corrosion resistance, and the range is backed by global product liability insurance.
Design authority, manufacturing and product certification rest with KOSAPLUS Co., Ltd. Kosaplus UK distributes those products in the United Kingdom.
1991
KOSAPLUS Co., Ltd. established in Korea, starting with the scotch yoke actuator
2014
SIL 3 / SIL 4 functional safety certificate for the pneumatic range (SZÚ)
2016
CE certificates (EMC and LVD) for the electric actuators from TÜV NORD
2017
CE Machinery Directive certificate for the pneumatic actuators from TÜV NORD
2026
ATEX and IECEx certificates for the explosion-proof electric actuators
Mission and values
Our mission and values
“Our mission is to give UK engineers and buyers straightforward access to KOSAPLUS valve actuators, with the information and documents they need to specify and buy with confidence.”
Technical accuracy
We quote what the documentation supports. If we don't know a figure, we find it or say so.
Responsive UK support
A real contact, reachable in UK hours.
Genuine product
KOSAPLUS actuators, traceable to the manufacturer.
Honest communication
Clear lead times and clear limits. We would rather say no than sell the wrong actuator.
Long-term relationships
Most of our value shows up on the second project, not the first.
Product range
The KOSAPLUS range we supply
Industries
Industries and applications
Suitability for a specific duty must always be confirmed against the product documentation and your own design requirements.
Quality
Quality and documentation
Product quality, testing and certification are the responsibility of KOSAPLUS Co., Ltd. Our role is to get you the documents you need for design files, supplier approvals and site records. Each certificate covers only the scope written on it.
Contact Kosaplus UK
Send us the valve, the specification or your parts list, and we'll come back with the KOSAPLUS model codes and a formal quotation. Or email sales@kosaplus.co.uk.