- Reduces 125mm dia. ducting to fit 100mm dia. components.
- 100mm dia. male spigot with 125mm dia. female collar.
- 125mm collar compatible with 125mm dia. Rigid Pipe RD51RND and suits 125mm dia. RytHose range (or use RD5HC).
- 100mm spigot compatible with 100mm dia. Rigid Pipe RD4/RND and suits 100mm dia. RytHose range (or use RD4HCF).
- Use with adaptor RD4FR to connect to 110mm x 54mm Flat Channel Duct RD4/M.
- For use in areas requiring lower extraction rates such as bathrooms, kitchens and utility rooms.
- Operating temperature range -15ºC to 60ºC.
- Manufactured in compliance with DW 154: Specification for Plastics Ductwork.
- Meets UL94 HB flammability standard.
RD4REDUC – Rytons 125mm to 100mm Reducer (125mm/100mm Dia. Ranges)
General Details
Size:
- Male spigot: 99mm Ext. Dia. x 20mm D.
- Female collar: 125mm Int. Dia. x 20mm D.
Free Area:
- 100mm dia. spigot: 7,283mm² (72.83cm²).
- 125mm dia. collar: 12,266mm² (122.66cm²).
Compatible Ducting and Components:
- Rytons Rigid Pipe 1m L RD51RND.
- Rytons PVC 125mm Diameter RytHose Range
- Rytons Threaded Hose Connector Female RD5HC.
- Rytons Rigid Pipe 358mm L RD435RND.
- Rytons Rigid Pipe 1m L RD41RND.
- Rytons Rigid Pipe 1.5m L RD415RND.
- Rytons Rigid Pipe 2m L RD42RND.
- Rytons PVC 100mm Diameter RytHose Range.
- Rytons Threaded Hose Connector Female RD4HCF.
- Rytons Flat Channel Horizontal Adaptor RD4FR.
Airflow and Resistance:
- 8 l/s: 0.80 Pa.
- 13 l/s: 1.30 Pa.
- 21 l/s: 3.20 Pa.
- 30 l/s: 5.90 Pa.
- 60 l/s: 24.00 Pa.
- 120 l/s: 102.00 Pa.
Composition:
- White High Impact Polystyrene.
Reference Material:
- The Building Regulations F1 2021, Installation of ventilation systems:
- 1.76: Rigid ducts should be used wherever possible.
- 1.79: Ductwork installations should be designed and installed to minimise the overall pressure losses within the system by taking all of the following steps.
- a. Minimising the overall length of duct.
- b. Minimising the number of bends required.
- c. Installing appropriately sized ducts for the air flow rate.
- Note: This approved document takes effect on 15 June 2022 for use in England. It does not apply to work subject to a building notice, full plans application or initial notice submitted before that date, provided the work is started on site before 15 June 2023.
Handling Information:
- Individual weight: 40g.
NBS Specification:
Rytons is proud to be a family run business and British manufacturer since 1972
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