Dwj41h German standard BELLOWS GLOBE VALVE

Short Description:

German standard bellows globe valve is suitable for cutting off or connecting pipeline medium in petroleum, chemical, pharmaceutical, chemical fertilizer, electric power industries with nominal pressure of pn1.6 ~ 1.6Mpa and working temperature of – 29 ~ 350 ℃.

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Features of dw41jh bellows stop valve

1. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance;

2. The sealing surface overlaid with Co based cemented carbide has good wear resistance, corrosion resistance, friction resistance and long service life;

3. The valve stem has good anti-corrosion and anti friction properties by quenching and tempering and surface nitriding treatment;

4. Double seal, more reliable performance;

5. Valve stem lifting position indication, more intuitive;

6. Parts material and flange, butt welding end size can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.

Main performance specifications

Nominal pressure（MPa）	Shell test pressure（MPa）	Sealing test pressure（MPa）	Applicable temperature（℃）	Media used
1.6	2.4	1.76	≤350℃	Water, steam, oil, etc
2.5	3.75	2.75
4.0	6.0	4.4
6.4	9.6	7.04

Materials of main parts of dwj41h German standard BELLOWS GLOBE VALVE

Serial number	name	texture of material
1	valve body	GS-C25 1.73631.4308、1.4408、1.4306、1.4301
2	Valve disc	ASTM A182-Gr.F6a ASTM A-182-F22ASTM A182-F304、F316、F321、F304L、F316L
3	Pivot pin	ASTM A182-Gr.F6a ASTM A-182-F22ASTM A182-F304、F316、F321、F304L、F316L
4	Bellows assembly	1Cr18Ni9Ti、304、316
5	Stem	ASTM A182-Gr.F6a ASTM A-182-F22ASTM A182-F304、F316、F321、F304L、F316L
6	Valve cover	GS-C25 1.73631.4308、1.4408、1.4306、1.4301
7	filler	Flexible graphite、PTFE
8	Packing gland	GS-C25 1.73631.4308、1.4408、1.4306、1.4301
9	Positioning film	25、45、304、316
10	Stem nut	copper alloy ZQA19-4
11	handwheel	WCB、QT400-18
12	Stud bolt	ASTM A193-B7、A193-B8、A193-B8M
13	Hexagon nut	ASTM A194-2H、A194-8、A194-8M
14	shim	Flexible graphite + stainless steel、PTFE

Main connection dimensions

model	model
Pressure rating	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
W	120	140	140	160	160	180	200	220	250	300	350	400	450	500	500
weight（kg）	4	4.5	5	7	9	12.5	18	23	41	54	90	160	260	410	610

model	DWJ41-25
Pressure rating	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
W	120	120	140	160	160	180	200	220	250	300	350	400	450	500	500
weight（kg）	4	4.5	5	7.5	9.5	13	19	24	43	57	95	168	300	510	680

model	DWJ41-40
Pressure rating	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
W	120	120	140	160	160	180	200	220	250	300	350	400	450	500	500
weight（kg）	4	4.5	5	8	10	13.5	20	25	45	60	98	171	340	580	780