bellows stop valve -凯发彩票

advantage 1.bellow seal element.the key part of bellow sealed globe valves is mental bellow.it is the connection between cover and stem with automatic roll welding.the mental bellow can keep the stem part no leakage. 2.benefit from the con and streamline shape design, the disc has a reliable seal and longer service life. 3.double seal design(bellows packing).bellow and packing can protect against leakage and provide a excellent seal. 4.grease nipple.it can direct lubricate the stem, nut and sleeve. 5.ergonomic hand wheel.it provide longer service life and easier operation.

ansi bellows seal globe valve
application: industry, powerstations, flue gas purification plant, processing technology, gas supply, vapour facilities, recycling facilities, vacuum facilities, hot water, heating technology, district heating, thermal oil applications, general plant manufacturing, etc. (other applications on request)
medium : steam, gases, hot water, thermal fluids, hot oil, process water, vacuum facilities, ammonia etc.(other flow media on request)
materials : wcb, wc6,ss304,ss316
bellows materials: ss304, ss316,ss316l,ss310, hastelly c.
size range : 2"-16"

ansi bellows seal globe valve

features and benefits
● long cycle life bellows (3000 cycles) in gr. 321 (stainless), inconel for special applications, or hastelloy c for chlorine service.
● bolted body-bonnet joints for fast serviceability. fully enclosed spiral wound gr. 316 (stainless) graphite gaskets.
● non-rotating stem prevents torsion of bellows.
● two-secondary stem seals: a) back seat in open position; b) graphite packing.
● bellows monitoring port (optional): a plug can be connected to the space above the bellows to monitor performance.
● seat and disc hardfaced with cocr alloy, ground and lapped.