Main dimensions Main size of outside
Pressure rating at room temperature test pressure (MPa)
Housing sealing bellows seal low pressure seal
Nominal pressure
(MPa) 1.6 2.4 1.76 1.76 0.6
2.5 3.75 2.75 2.75 0.6
4 6 4.4 4.4 0.6
Application of the temperature of -29~425 DEG C
Applicable medium water. The steam. Heat oil. Oil etc.
The model BQJ41H (Y) WJ41H (F)
Pressure level PN16.25.40
Diameter 1520253240506580 100125150200250300 350400
L 130150160180200230 290310350400480600 7308509801100
H 205210220235235240 270295350380430670 720630680780
W 130130130130150150 180180200200400450 450500500550
Weight (Kg) 4.5568 10.5 13.52125 37.56078178270450 570750
Note: 1 the valve aperture more than more than DN200 Series 7, used in highpressure conditions should be used when the balance valve. 2. When the application and water. Oil and gas system temperature less than 250 is suggested to use soft seat (Te Fulong) to ensure no leakage.
Materials of main parts of Main parts materials
Name of material
1 1.7363 1.4308 1.4408 1.4306 1.4301 valve GS-C25
2 valve ASTM A182-Gr.F6a ASTM A182-F22 ASTM A182-F304 F316 F321 F304LF316L
3 ASTM A182-Gr.F6a ASTM A182-F22 pin ASTM A182-F304 F316 F321 F304LF316L
4 double bellows bellows assembly (made in Shenyang) 1CrNi9Ti.304. 316
5 stem ASTM A182-Gr.F6a ASTM A182-F22 ASTM A182-F304 F316 F321 F304LF316L
A valve cover 6 GS-C25 1.7363 1.4308 1.4408 1.4306 1.4301
7 packing flexible graphite
8 packing gland GS-C25 1.7363 1.4308 1.4408 1.4306 1.4301
The 9 positioning pieces 25.45.304.316
10 stem nut ZQA19-4 copper alloy
11 hand GS-C25 WCB.QT40-18
12 stud ASTM A193-B7.A193-B8.A193-B8M
13 ASTM A194-2H. A194-8. A194-8M six hexagon nut
14 gaskets and flexible graphite and stainless steel
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