1. Seal Emergency by grease injecting : the seat
seal may become invalid because of foreign material in medium
and fire hazard .seal greade can be indected to seal part of valve
by grease gun promptly and conveniently , which can remit leakness
2. dependable stem sealing and low operating torque : o-ring is
equiped on the grand beside standard seal ring , which can assure
about stem seal. With hep of added graphite packing and seal grease
, leakness on stem after fire dazard can be minimized. Valve
can be operated labor-saving because of sliding bearing and thrust
bearing
3.full bor or reduce bore strcture : two strctures can be selected
acording to requirement .flow-bore-diameter is same as the inner-diameter
,which is convenient for clearing
4. stem can be lengthened : stem can be lengthened acording to
requirement of mounting or operating . lengthened stem valve such
as for city gas using is suitable for buried-setting pipline .sizel
of lengthened stem is according to client's requirement
5. convenient operation : operating torque is reduced because
adapt seat and stem bearing with good self-lubricity and small
friction factor .Valve
can be operated conveniently for long-term even if without seal
packing grease.
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