German standard custom bellows globe valve manufacturer

German standard custom bellows globe valve manufacturer

Main use

German standard bellow stop valve is suitable for the nominal pressure PN1.6 ~ 16MPa, working temperature -29 ~ 350℃ of flammable, explosive, highly toxic, toxic fluid, high temperature heat transfer oil, liquid ammonia and other media.

Widely used in: petrochemical, chemical fiber textile, plastic paper, electric power steel, printing and dyeing rubber, natural gas and other gas systems, safe and reliable performance, widely used in ethylene glycol and other industrial fluids. The driving mode is manual, gear drive, electric, pneumatic and so on.

Structural features

1,The product structure is reasonable, reliable sealing, double durable bellows sealing design (bellows + packing), to ensure zero leakage of the stem. No fluid loss, improve plant equipment safety. And in line with international sealing standards.

2, sealing surface surfacing Co base carbide, wear resistance, corrosion resistance, friction resistance, long service life

3, stem quenching and conditioning and surface nitriding treatment, has good corrosion resistance and friction resistance performance; Stem lift position indication, more intuitive

Technical specification

Drive mode	Hand operated，
	electric
Design standard	DIN3356
Structure length standard	DIN3202
connecting flange	DIN2543-2545
Testing and inspections	DIN3230

Product performance specification

Nominal pressure (MPa)	Shell test pressure (MPa)	Seal test pressure (MPa)	Applicable temperature (℃)
1.6	2.4	1.76	≤350℃
2.5	3.75	2.75
4.0	6.0	4.4
6.4	9.6	7.04

Note: Series valve connecting flange can be designed and manufactured according to customer’s requirements

Material of parts

Name of parts	Valve body	Valve deck	Valve rod	Valve clack	Sealing surface	Padding
WCB	WCB	WCB	13Cr	2Cr13	2Cr13	Flexible graphite
					STL
304	CF8	CF8	304	304	304	Flexible graphite
					STL	PTFE
316	CF8M	CF8M	316	316	316	Flexible graphite
					STL	PTFE
304L	CF3	CF3	316	304L	304L	Flexible graphite
					STL	PTFE
316L	CF3M	CF3M	316	316L	316L	Flexible graphite
					STL	PTFE

Specifications, dimensions and weight

Item	DWJ416
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
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

Item	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
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

Item	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
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