Production label
The model, specification and trademark of indoor fire hydrant shall be cast on the valve body or valve cover, which shall be consistent with the description in the inspection report. If any inconsistency is found, the conformity test is unqualified.
handwheel
The edge of the handwheel of indoor fire hydrant should be obviously cast with arrows and characters indicating the direction of switch, and the diameter of handwheel should meet the requirements. For example, the commonly used SN65 handwheel is not less than 120mm.
material
The valve seat of indoor fire hydrant shall be made of brass, and the stem nut and stem body shall be made of lead brass.