Available in dimensions, which the standard program from the duct manufacturers, do normally not included. A straight short reducer, i.e. no conical connection between the 2 diameters. This optimizes the assembly length.
Please, note: Gram special reducers are also available in duct dimensions that normally are not a part of the starndard programs at duct manufactures.
SPR is made as a straight short reducer, this optimizes the assembly length.
Gram special reducers type SPR are available with 4 order numbers:
1. Order no. 06160000:
2. Order no. 06161000:
3. Order no. 06162000:
4. Order no. 06163000:
All measurements are outer measurement. Please, see brochure page.
Gram special reducers type SPR are made in black steel and thus powder enamelled.