Mechanical seals of Calpeda pumps N4, NM4, AS.
Seal type U3-X6X62V6 d32 art. 16006890000 - for pumps N 32-125A/A, N 32-160A/A, N 32-200A/A, N 40-125A/A, N 40-160A/A, N 40-200A/A, N 40-250A/A, N 50-125A/A, N 50-160A/A, N 50-200A/A, N 50-250A/A, N 50M-E/A, N 50M-D/A, N 50M-C/A, N 65-125A/A, N 65-160A/A, N 65-200A/A, N 80-160A/A, AS 65-150C/A, AS 65-150B/A, AS 65-150A/A.
Seal type U3-X6X62V6 D40 art. 16005350000 – for pumps N 65-250A, N4 65-315A, N 80-200A, N 80-250A, N4 80-315A, N 100-200A, N 100-250A, N4 100-315A, N4 125-250A.
Seal type U2-X6GV6 d50 art. 16001650000 – for pumps Calpeda NM4 125/400, NM4 150/400, N4 80-400A, N4 100-400A, N4 125-315A, N4 125-400A, N4 150-315A, N4 150-400A.
Decryption of sealing materials:
6 - NBR rubber (nitrile butadiene rubber), for oils and neutral media
7 - EPDM rubber (ethylene propylene rubber), for hot water and steam, alcohols, in contact with food and beverages
Y - Viton rubber (fluoro rubber), for mineral oils and fats, acidic media.
5 - PTFE (Polytetrafluoroethylene, fluoroplast) exceptional chemical resistance.
4 - PTFE ((Polytetrafluoroethylene, fluoroplast) with filler- for chemically aggressive media.
V – Carbon Graphite (Car)
Z - Carbon graphite subjected to coking (Car)
G - Stainless steel AISI 431
H - Stainless steel AISI 304
X - Stainless steel AISI 316
3 - Solid alloy of integral structure, corrosion-resistant, surfaced
R - Tungsten Carbide TC
9 - Ceramics, steatite
2 - Ceramics, aluminum oxide 99.5% (Cer)
E - Special spring steel for oil, temperatures over 100°C
J - Stellite surfacing on 316 stainless steel
L – Hastelloy (Hastelloy®)
K – silicon carbide (Sic).