About us

Description
The JNP range of duct obtain doorways is made to supply easy and fast entry to smoke, fire and quantity handle dampers, coils, filters and other air conditioning and ventilating tools mounted inside ductwork.
The variety of 5 dimensions have been very carefully chosen to give different degrees of accessibility from solitary handed to head and shoulder entry.
JNP accessibility doorways are of double pores and skin “sandwich” building comprehensive with 20mm thick substantial density insulation and are sealed to avoid any insulation migration.
The one piece mounting frames are pressed for precision and pre-punched on internal and outer flanges.
This characteristic enables doorways to be set up so that a flush complete is reached on plain or insulated ductwork.
All measurements of doorway are fitted, as standard, with a retaining chain amongst the door and frame.
JNP access doors are ideal for substantial, medium and low pressure purposes and meet the specifications of HVCA DW144 Specification courses A and B.
Specification
Body, Seamless 1 piece .5mm galvanized delicate metal.
CZPT, Outer panel .5mm galvanized delicate metal
Interior panel .5mm galvanized moderate steel.
Insulation, 20mm thick hearth retardant insulation.
Gasket, Positive seal.
Fasteners, Progressive action camlocks, zinc plated. 
Retaining chain, zinc plated, between door and frame.

Workshop