API bellows stop valve

Technical Parameters

Product model: WJ41H

Design standard: ASME B16.34
Structural length: ASME B16.5
Connecting flange: ASME B16.5
Testing and Inspection: API 598
Valve body material: WCB/CF8/CF8M/CF3/CF3M/WC6/WC9
Nominal diameter: DN15-DN350
Nominal pressure: CL150LB-900LB
Connection method: flange, welding
Applicable media: Steam, heat transfer oil, hot and cold water, molten salt, other chemical media, etc

Application industries: petroleum, chemical, power, pharmaceuticals, metallurgy, polycrystalline silicon, new energy and other industries

Product Details

PRODUCT OVERVIEW

The reinforced bellows stop valve is made of metal bellows sealing technology. The high-performance metal bellows and bellows sealed stop valve are designed with bellows seal, which completely eliminates the shortcomings of rapid aging and easy leakage of ordinary valve stem packing, not only improves the use energy efficiency, increases the safety of production equipment, and reduces the maintenance cost and frequent maintenance, It also provides a clean and safe working environment. Widely used in: petrochemical industry, chemical fiber textile, plastic papermaking, electric power steel, printing and dyeing rubber, food and other industries.

STRUCTURAL FEATURES

1. The valve body adopts German coated sand casting technology, which greatly improves the surface finish and mechanical properties of the valve body, reduces the occurrence of pores, sand holes and cracks, and enhances the tensile strength of the casting.

2. When the valve is closed, the conical sealing surface with "scraping effect" can automatically remove surface impurities, which can ensure reliable sealing and longer service life of the valve disc.

3. Double sealing design (bellows + packing), in line with international sealing standards.

4. All bellows pass helium test and all valves pass standard test to ensure zero leakage.

5. Products above DN150 are equipped with special devices to effectively prevent the valve from shaking, noise and internal parts damage during use, and the service life is effectively increased by more than 150%.

6. Various valves can be provided according to working conditions.

MAIN SPECIFICATIONS, DIMENSIONS AND WEIGHT

Model	WJ41H-16
Pressure class	PN16
caliber	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350
L	130	150	160	180	200	230	290	310	350	400	480	600	730	850	980
H	195	200	220	225	235	250	260	265	370	400	515	550	600	630	680
Do	130	130	130	130	150	150	180	180	200	200	400	450	450	500	500
Weight(Kg)	4	4.5	5	7	9	12.5	18	23	41	54	90	160	260	410	610

Model	WJ41H-25
Pressure class	PN25
caliber	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350
L	130	150	160	180	200	230	290	310	350	400	480	600	730	850	980
H	195	200	220	225	235	250	260	265	370	400	515	550	600	630	680
Do	130	130	130	130	150	150	180	180	200	200	400	450	450	500	450
Weight(Kg)	4	4.5	5	7	9.5	13	19	24	43	57	95	168	300	510	680

Model	WJ41H-40
Pressure class	PN40
caliber	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350
L	130	150	160	180	200	230	290	310	350	400	480	600	730	850	980
H	195	200	220	225	235	250	260	265	370	400	515	550	600	630	680
Do	130	130	130	130	150	150	180	180	200	200	400	450	450	500	500
Weight(Kg)	4	4.5	5	8	10	13.5	20	25	45	60	98	171	340	580	780

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