Forged Steel Bellows Sealed Valve

①Split packing gland
Automatic aligning function

②The length of the bellows is 5 times the stroke of the valve opening
Increase service life

③Conical disc or other customized disc

④Double seal design(bellows+packing)

⑤Sealing bowl with stainless steel
Welded with bellows Ensure zero leakage

Throttle disc with streamlined design Flow adjustment function
Improve the resistance of water hammer

Compared with castings,the forged steel body has a more stable structure,better density,better strength and smaller dimensional error.

Better performance of strength and stress.Longer service life even in places where stress and crystal corrosion are severe.

Hot forging process, especially suitable for high temperature, high pressure, toxic, high permeability and other harsh conditions.

Main Part Materials

Name	Material
Body	A105,F304,F316,F316L,LF2
Seat	13Cr,SS304,SS316,Stellite
Disc	13Cr,F304,F316,Stellite
Bellows	SS304,SS316L
Stem	20Cr13,F304,F316
Bonnet	WCB,CF8,CF8M,CF3M,LCB

Performance Table

Nominal Pressure		PN(MPA)
Test Pressure	Shell Test	1.5 x Pr
	Sealing Test	1.1 x Pr
	Air Test	0.6
	Bellows Assembly Test	1.5 x Pr
Suitable Temp	-196℃~600℃
Note: Pr is the pressure rating of the material at room temperature, the unit is MPa

Selection and Application

According to the performance of the medium, temperature, pressure, flow rate, and other characteristics combined
with the process, operation, safety and other factors, select the corresponding valve specifications.