A42 Type Sealed Full-opening Spring Safety Valve

Size Range: 3/4" ~ 16"
Pressure Rating: PN16 ~ PN100
Temperature Range: Carbon Steel: -20℃~350℃; Stainless Steel: -40℃~450℃; high-temp custom up to 550℃
Connection Type: Flanged
Material: Carbon Steel / Alloy Steel / Stainless Steel
Operation: Spring-Loaded, Closed Bonnet, Full Lift
Suitable Medium: Water, Steam, Air, Oil, Natural Gas etc.; Stainless Steel for Weakly Corrosive Media; Closed Structure for Toxic/Flammable Media

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zgkk@zgkkv.com

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Details

Our products now cover a wide range of standardized fluid control products that can be adapted to a variety of drive modes, comprising ball valves, butterfly valves, gate valves, globe valves, check valves, safety valves, rotary ball valves, plunger valves etc. Our products are widely used in water conservancy, municipal, electric power, gas, petrochemical, coal chemical, energy, environmental protection, medicine, real estate, metallurgy, mining and many other fields.

A42 Series Models
A42Y-16C	A42Y-16P	A42Y-16R	A42Y-40	A42Y-40P
A42Y-40R	A42Y-100	A42Y-100P	A42Y-100R	KA42Y-16
DA42Y-16(P)	A42Y-25	A42Y-25P	A42Y-25R	A21Y-16R
DA42Y-25(P)	A42Y-64	A42Y-64P	A42Y-64R	A42Y-64
KA42Y-64	KA42Y-100	DA42Y-100(P)	DA42Y-25(P)	DA42Y-64(P)

	Part Name	A42Y-C/KA42Y-C	A42Y-P/KA42Y-P	A42Y-R	DA42Y-P
1	Body	2Cr13/1Cr18Ni9Ti	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti	ZG1Cr18Ni9Ti
2	Seat	WCB	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti	LCB/ZG1Cr18Ni9Ti
3	Adjusting Ring	2Cr13/1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti	1Cr18Ni9Ti
4	Disc Holder	2Cr13/1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti	1Cr18Ni9Ti
5	Disc	2Cr13/1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti	1Cr18Ni9Ti
6	Guide sleeve	2Cr13/1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti	1Cr18Ni9Ti
7	Bonnet	ZG230-450	ZG230-450	ZG230-450	ZG1Cr18Ni9Ti
8	Spring	50CrVA	50CrVA, Teflon Coated	50CrVA, Teflon Coated	50CrVA
9	Stem	2Cr13	1Cr18Ni9Ti/1Cr18Ni12Mo2Ti	1Cr18Ni9Ti/1Cr18Ni12Mo2Ti	1Cr18Ni9Ti
10	Adjusting Bolt	45	2Cr13	2Cr13	2Cr13
11	Cap	ZG200-400	ZG200-400	ZG200-400	ZG230-450
	Sealing surface of material	Co-based Hard Alloy Overlay

Dimensions (mm)
Type	DN	do	D	K	g	g₁	b	f	f₁	Z-φd	DN¹	D₁	k₁	g³	g²	b₁	f’	f’₁	Z¹-φd¹	L	L₁	≈H
A42Y-16C A42Y-16P A42Y-16R KA42Y-16C DA42Y-16C(P)	20	15	105	75	/	55	16	2	/	4-14	25	115	85	/	65	16	2	/	4-14	110	95	378
	25	16	115	85	/	65	16	2	/	4-14	32	140	100	/	78	18	2	/	4-18	110	95	378
	32	20	140	100	/	78	18	2	/	4-18	40	150	110	/	85	18	3	/	4-18	115	100	378
	40	25	150	110	/	85	18	3	/	4-18	50	165	125	/	100	20	3	/	4-18	120	110	406
	50	32	165	125	/	100	20	3	/	4-18	65	185	145	/	120	20	3	/	4-18	135	120	450
	65	40	185	145	/	120	20	3	/	4-18	80	200	160	/	135	20	3	/	8-18	160	140	520
	80	50	200	160	/	135	20	3	/	8-18	100	220	180	/	155	22	3	/	8-18	170	135	525
	100	65	220	180	/	155	22	3	/	8-18	125	250	210	/	185	22	3	/	8-18	195	175	690
	125	80	250	210	/	185	22	3	/	8-18	150	285	240	/	210	24	3	/	8-23	210	190	780
	150	100	285	240	/	210	24	3	/	8-23	175	310	270	/	240	26	3	/	8-23	255	230	838
	200	125	340	295	/	265	26	3	/	12-23	250	405	355	/	320	30	3	/	12-26	300	260	992
	250	150	405	355	/	320	30	3	/	12-26	300	460	410	/	375	30	4	/	12-26	350	320	1266
	300	220	460	410	/	375	30	4	/	12-26	400	580	525	/	485	36	4	/	16-30	370	350	1283
	350	250	520	470	/	435	34	4	/	16-26	500	715	650	/	608	44	4	/	20-34	500	450	1520
	400	280	580	525	/	485	36	4	/	16-30	500	715	650	/	608	44	4	/	20-34	500	450	1530
A42Y-25C A42Y-25P A42Y-25R KA42Y-25C DA42Y-25(P)	20	15	105	75	/	55	16	2	/	4-14	25	115	85	/	65	16	2	/	4-14	110	95	378
	25	16	115	85	/	65	16	2	/	4-14	32	140	100	/	78	18	2	/	4-18	110	95	378
	32	20	140	100	/	78	18	2	/	4-18	40	150	110	/	85	18	3	/	4-18	115	100	378
	40	25	150	110	/	85	18	3	/	4-18	50	165	125	/	100	20	3	/	4-18	120	110	406
	50	32	165	125	/	100	20	3	/	4-18	65	185	145	/	120	20	3	/	4-18	135	120	450
	65	40	185	145	/	120	22	3	/	8-18	80	200	160	/	135	20	3	/	8-18	160	140	520
	80	50	200	160	/	135	22	3	/	8-18	100	220	180	/	155	22	3	/	8-18	170	135	525
	100	65	230	190	/	160	24	3	/	8-23	125	250	210	/	185	22	3	/	8-18	195	175	690
	125	80	270	220	/	188	28	3	/	8-26	150	285	240	/	210	24	3	/	8-23	210	190	780
	150	100	300	250	/	218	30	3	/	8-26	175	310	270	/	240	26	3	/	8-23	255	230	838
	200	125	360	310	/	278	34	3	/	12-26	250	405	355	/	320	30	3	/	12-26	300	260	992
	250	150	425	370	/	332	36	3	/	12-30	300	460	410	/	375	30	4	/	12-26	350	320	1266
	300	220	485	430	/	390	40	4	/	16-30	400	580	525	/	485	36	4	/	16-30	370	350	1283
A42Y-40C A42Y-40P A42Y-40R KA42Y-40 DA42Y-40(P)	20	15	105	75	51	55	16	2	4	4-14	25	115	85	/	65	16	2	/	4-14	110	95	378
	25	16	115	85	58	65	16	2	4	4-14	32	140	100	/	78	18	2	/	4-18	110	95	378
	32	20	140	100	66	78	18	2	4	4-18	40	150	110	/	85	18	3	/	4-18	115	100	378
	40	25	150	110	76	85	18	3	4	4-18	50	165	125	/	100	20	3	/	4-18	120	110	406
	50	32	165	125	88	100	20	3	4	4-18	65	185	145	/	120	20	3	/	4-18	135	120	450
	65	40	185	145	110	120	22	3	4	8-18	80	200	160	/	135	20	3	/	8-18	160	140	520
	80	50	200	160	121	135	22	3	4	8-18	100	220	180	/	155	22	3	/	8-18	170	135	525
	100	65	235	190	150	160	24	3	4.5	8-23	125	250	210	/	185	22	3	/	8-18	195	175	690
	125	80	270	220	176	188	28	3	4.5	8-26	150	285	240	/	210	24	3	/	8-23	210	190	780
	150	100	300	250	204	218	30	3	4.5	8-26	175	310	270	/	240	26	3	/	8-23	255	230	838
	200	125	375	320	260	282	38	3	4.5	12-30	250	405	355	/	320	30	3	/	12-26	300	260	992
	250	150	450	385	313	345	42	3	4.5	12-34	300	460	410	/	375	30	4	/	12-26	350	320	1266
A42Y-64 A42Y-64P A42Y-64R DA42Y-64(P)	20	10	125	90	51	68	22	2	4	4-18	25	115	85	58	65	16	2	4	4-14	110	100	264
	25	16	140	100	58	78	22	2	4	4-18	32	140	100	66	78	18	2	4	4-18	110	100	277
	32	20	155	110	66	82	24	2	4	4-23	40	150	110	76	85	18	3	4	4-18	130	110	289
	40	25	170	125	76	95	24	3	4	4-23	50	165	125	88	100	20	3	4	4-18	130	120	319
	50	32	180	135	88	105	26	3	4	4-23	65	185	145	110	120	22	3	4	8-18	155	130	389
	65	40	205	160	110	130	28	3	4	8-23	80	200	160	121	135	22	3	4	8-18	175	160	493
	80	50	215	170	121	140	30	3	4	8-23	100	235	190	150	160	24	3	4.5	8-23	175	160	483
	100	65	250	200	150	168	32	3	4.5	8-26	125	270	220	176	188	28	3	4.5	8-25	195	195	613
	150	88	345	280	204	240	38	3	4.5	8-34	200	375	320	260	282	38	3	4.5	12-30	285	260	894
A42Y-100 A42Y-100P A42Y-100R DA42Y-100(P)	20	10	125	90	51	68	22	2	4	4-18	25	115	85	58	65	16	2	4	4-14	110	100	264
	25	16	140	100	58	78	24	2	4	4-18	32	140	100	66	78	18	2	4	4-18	110	100	277
	32	20	155	110	66	82	24	2	4	4-23	40	150	110	76	85	18	3	4	4-18	130	110	289
	40	25	170	125	76	95	26	3	4	4-23	50	165	125	88	100	20	3	4	4-18	130	120	319
	50	32	195	145	88	112	28	3	4	4-26	65	185	145	110	120	22	3	4	8-18	155	130	389
	65	40	220	170	110	138	32	3	4	8-26	80	200	160	121	135	22	3	4	8-18	175	160	493
	80	50	230	180	121	148	34	3	4	8-26	100	235	190	150	160	24	3	4.5	8-23	175	160	483
	100	65	265	210	150	172	38	3	4.5	8-30	125	270	220	176	188	28	3	4.5	8-25	195	195	613
	150	88	355	290	204	250	46	3	4.5	12-34	200	375	320	260	282	38	3	4.5	12-30	285	260	894