Bellows seal balance safety valve

Technical Parameters

Product model: WA42Y
Nominal diameter: DN25-200mm
Nominal pressure: PN16-100
Applicable temperature: -29 ° C~200 ° C
Applicable medium: toxic, flammable or corrosive gases

Product Details

Product Overview
The bellows balanced safety valve is suitable for equipment or pipelines with unstable back pressure or toxic or corrosive media at a working temperature of ≤ 200 ℃, as an overpressure protection device. Widely used in industries such as petroleum, chemical, and power plants.

Main overall connection dimensions

model	DN	do	D	K	g	g1	b	f	f1	Z-?d	L	L1	≈H
WA42Y-16 WA42Y-16P WA42Y-16R	25	16	115	85		65	16	2		4-14	110	95	378
	32	20	140	100		78	18	2		4-18	115	100	378
	40	25	150	110		85	18	3		4-18	120	110	406
	50	32	165	125		100	20	3		4-18	135	120	450
	65	40	185	145		120	20	3		4-18	160	140	520
	80	50	200	160		135	20	3		8-18	170	135	525
	100	65	220	180		155	22	3		8-18	195	175	690
	125	80	250	210		185	22	3		8-18	210	190	857
	150	100	285	240		210	24	3		8-23	255	230	838
	200	125	340	295		265	26	3		12-23	300	260	992
WA42Y-25 WA42Y-25P WA42Y-25R	25	16	115	85		65	16	2		4-14	110	95	378
	32	20	140	100		78	18	2		4-18	115	100	378
	40	25	150	110		85	18	3		4-18	120	110	406
	50	32	165	125		100	20	3		4-18	135	120	450
	65	40	185	145		120	22	3		8-18	160	140	520
	80	50	200	160		135	22	3		8-18	170	135	525
	100	65	230	190		160	24	3		8-23	195	175	690
	125	80	270	220		188	28	3		8-26	210	190	780
	150	100	300	250		218	30	3		8-26	255	230	838
	200	125	360	310		278	34	3		12-26	300	260	992
WA42Y-40 WA42Y-40P WA42Y-40R	25	16	115	85	58	65	16	2	4	4-14	110	95	378
	32	20	140	100	66	78	18	2	4	4-18	115	100	378
	40	25	150	110	76	85	18	3	4	4-18	120	110	406
	50	32	165	125	88	100	20	3	4	4-18	135	120	450
	65	40	185	145	110	120	22	3	4	8-18	160	140	520
	80	60	200	160	121	135	24	3	4	8-18	170	135	525
	100	65	235	190	150	160	24	3	4.5	8-23	195	175	690
	125	80	270	220	188	176	28	3	4.5	8-26	210	190	857
	150	100	300	250	204	218	30	3	4.5	8-26	255	230	838
	200	125	375	320	260	282	38	3	4.5	12-30	300	260	992

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