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Gate Valve Series

• API 600 Cast Steel Gate Valve
• API 602 Forged Steel Gate Valve
• API 603 Cast Stainless Steel Gate Valve
• AWWA Resilient Seated Gate Valve
• Knife Gate Valve
• Bellows Seal Gate Valve
• Pressure Seal Gate Valve
• Cryogenic Gate Valve
• Slab Gate Valve
• Cast Iron Gate Valve

Product drawing»

Structural drawing»

Cast Bellows Seal Gate Valve

ASME Pressure Class 150 Lb - 600 Lb, 1/2" - 14" (15 mm - 350 mm)

BB, OS&Y, Raised Flanged(RF), Ring Joint Flanged(RTJ), Flat Face Flanged(FF), Male & Female Face Flange (M&F)

Specification

Cast bellows seal gate valve is applicable to the cutting and connection of pipelines medium that are used in various industries such as petroleum, chemical industry, pharmacy, chemical fertilizer, electric power industry etc under nominal pressure of ASME Pressure Class 150 - 1500 Lbs and working temperature of -29 - 350°C.

Structure : BB-BG-OS & Y

Actuator : Hand Wheel, Electric Actuator

Face to Face : ASME B16.10

Flange Ends : ASME B16.5

Test & Inspection : API 598

Pressure Class	Shell Test (MPa)	Sealing Test (MPa)	Suitable Temp. (°C)	Medium
150	3.0	2.2	≤350°C	Water Oil & Gas
300	7.5	5.5
600	15.0	11
900	22.5	16.5
1500	37.5	27.5

Materials

No.	Part name	Material
1	Body	ASTM A216-WCB ASTM A351-CF8,CF8M,CF3,CF3M
2	Disc	ASTM A182-Gr.F6a ASTM A182-F22 ASTM A182-F304,F316,F321,F304L,F316L
3	Stem	ASTM A182-Gr.F6a ASTM A182-F22 ASTM A182-F304,F316,F321,F304L,F316L
4	Gasket	Flexible graphite+stainless steel,PTFE
5	Bolt	ASTM A193-B7,A193-B8,A193-B8M
6	Nut	ASTM A194-2H,A194-8,A194-8M
7	Bonnet	ASTM A216-WCB ASTM A351-CF8,CF8M,CF3,CF3M
8	Bellow Assemble	ASTM A182-F304,F316,F321,F304L,F316L
9	Packing	Flexible graphite,PTFE
10	Gland	ASTM A216-WCB ASTM A351-CF8,CF8M,CF3,CF3M
11	Yoke	ASTM A216-WCB ASTM A351-CF8,CF8M,CF3,CF3M
12	Yoke Nut	ZQA19-4
13	Handwheel	ASTM A536Gr.60-40-18, A216-WCB

Dimension(mm) and Weights(Kg)

Model	WZ41-150 Lb
Pressure	150 Lb
Sizes (mm)	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350
Size (in)	1/2	3/4	1	1	1	2	2	3	4	5	6	8	10	12	14
L	108	117	127	140	165	178	190	203	229	254	267	292	330	356	381
H	200	210	250	260	290	370	398	440	490	530	580	670	760	850	950
W	120	140	140	180	200	220	260	280	300	340	400	450	450	500	500
Weight (Kg)	8	9	10	15	22	30	42	55	70	100	140	180	250	350	450

Model	WZ41-300 Lb
Pressure	300 Lb
Size (mm)	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350
Size (in)	1/2	3/4	1	1	1	2	2	3	4	5	6	8	10	12	14
L	140	152	165	178	190	216	241	283	305	381	403	419	457	502	762
H	200	210	250	260	290	370	398	440	490	530	580	670	760	850	980
W	120	140	140	180	200	220	260	280	300	340	400	450	450	500	500
Weight (Kg)	9	10	12	18	25	38	53	70	88	125	175	225	310	440	560

Model	WZ41-600 Lb
Pressure	600 Lb
Size (mm)	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350
Size (in)	1/2	3/4	1	1	1	2	2	3	4	5	6	8	10	12	14
L	165	190	216	229	241	292	330	356	432	508	559	660	787	838	889
H	200	210	250	260	290	370	398	440	490	530	580	670	760	850	980
W	120	140	140	180	200	220	260	280	300	340	400	450	450	500	500
Weight (Kg)	11	13	16	24	32	50	70	90	105	165	230	300	400	570	730

Features

• This product has logical structure, reliable seal, excellent performance and nice design.
• The seal surface is build-up welding with Co hard alloy, which is attrition-resistant. corrosion-resistant, has good friction resistant and long life.
• The stem is quenched and tempered, and its surface is treated by nitriding treatment, thus it has good corrosion resistant and friction resistant.
• It has double seal capability, thus is more reliable.
• The stem may show the position of lift, thus it is clearer.
• The part material, flange and butt weld end dimension may be selected according to current operating condition and users' requirement, so that meet the requirements of various engineering.

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