Eaton FD49 Series - NFPA Standard T3.20.15 HTMA Interchange - Steel
Eaton's FD49 Series meets NFPA standard T3.20.15 and was developed in conjunction with HTMA (Hydraulic Tool Manufacturer's Association). Eaton's Twin-Guard™ sealing system prevents
weepage at low pressures and allows connection and disconnection against pressure up to 500 psi.
Eaton's Twin-Guard™ seal system consists of channel and Buna-N O-Ring seals. The channel seal prevents blowout during connection and disconnection under pressure to 500 psi.
The Buna-N O-Ring seal is a secondary seal eliminating fluid weepage.