A48 Type Open Full-opening Spring Safety Valve with Wrench

Size Range: 3/4" ~ 16"
Pressure Rating: PN16 ~ PN100
Temperature Range: ≤350℃
Connection Type: Flanged
Material: Carbon Steel / Stainless Steel
Operation: Open Spring Structure, Automatic Full-Lift Relief on Overpressure, with Lifting Lever
Suitable Medium: Non-Corrosive, Non-Toxic Media (Air, Steam, Water, Oil)

Key words:

E-mail:

zhu.yuqing@zgkkv.com

Message

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.

Main Parts & Materials
NO.	Part Name	Material
1	Body	WCB
2	Seat	2Cr13
3	Adjusting Ring	ZG2Cr13
4	Blowdown Ring	ZG2Cr13
5	Disc	2Cr13
6	Guide Sleeve	2Cr13
7	Bonnet	ZG230-450
8	Spring	50CrVA
9	Stem	2Cr13
10	Lever	ZG200-400
11	Adjusting Screw	45
12	Cap	ZG200-400
	Sealing Surface 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
A48Y-16C	20	15	105	75	/	55	16	2	/	4-14	25	115	85	/	65	16	2	/	4-14	110	95	411
	25	16	115	85	/	65	16	2	/	4-14	32	140	100	/	78	18	2	/	4-18	110	95	411
	32	20	140	100	/	78	18	2	/	4-18	40	150	110	/	85	18	3	/	4-18	115	100	411
	40	25	150	110	/	85	18	3	/	4-18	50	165	125	/	100	20	3	/	4-18	120	110	472
	50	32	165	125	/	100	20	3	/	4-18	65	185	145	/	120	20	3	/	4-18	135	120	532
	65	40	185	145	/	120	20	3	/	4-18	80	200	160	/	135	20	3	/	8-18	160	140	556
	80	50	200	160	/	135	20	3	/	8-18	100	220	180	/	155	22	3	/	8-18	170	135	561
	100	65	220	180	/	155	22	3	/	8-18	125	250	210	/	185	22	3	/	8-18	195	175	667
	125	80	250	210	/	185	22	3	/	8-18	150	285	240	/	210	24	3	/	8-23	210	190	857
	150	100	285	240	/	210	24	3	/	8-23	175	310	270	/	240	26	3	/	8-23	255	230	915
	200	125	340	295	/	265	26	3	/	12-23	250	405	355	/	320	30	3	/	12-26	300	260	1073
	250	150	405	355	/	320	30	3	/	12-26	300	460	410	/	375	30	4	/	12-26	350	320	1307
	300	220	460	410	/	375	30	4	/	12-26	400	580	525	/	485	36	4	/	16-30	370	350	1233
	350	250	520	470	/	435	34	4	/	16-26	500	715	650	/	608	44	4	/	20-34	500	450	1711
	400	280	580	525	/	485	36	4	/	16-30	500	715	650	/	608	44	4	/	20-34	500	450	1780
A48Y-25	20	15	105	75	/	55	16	2	/	4-14	25	115	85	/	65	16	2	/	4-14	110	95	411
	25	16	115	85	/	65	16	2	/	4-14	32	140	100	/	78	18	2	/	4-18	110	95	411
	32	20	140	100	/	78	18	2	/	4-18	40	150	110	/	85	18	3	/	4-18	115	100	411
	40	25	150	110	/	85	18	3	/	4-18	50	165	125	/	100	20	3	/	4-18	120	110	472
	50	32	165	125	/	100	20	3	/	4-18	65	185	145	/	120	20	3	/	4-18	135	120	532
	65	40	185	145	/	120	22	3	/	8-18	80	200	160	/	135	20	3	/	8-18	160	140	556
	80	50	200	160	/	135	22	3	/	8-18	100	220	180	/	155	22	3	/	8-18	170	135	561
	100	65	230	190	/	160	24	3	/	8-23	125	250	210	/	185	22	3	/	8-18	195	175	667
	125	80	270	220	/	188	28	3	/	8-26	150	285	240	/	210	24	3	/	8-23	210	190	857
	150	100	300	250	/	218	30	3	/	8-26	175	310	270	/	240	26	3	/	8-23	255	230	915
	200	125	360	310	/	278	34	3	/	12-26	250	405	355	/	320	30	3	/	12-26	300	260	1073
	250	150	425	370	/	332	36	3	/	12-30	300	460	410	/	375	30	4	/	12-26	350	320	1307
	300	220	485	430	/	390	40	4	/	16-30	400	580	525	/	485	36	4	/	16-30	370	350	1233
	350	250	555	490	/	448	44	4	/	16-34	500	715	650	/	608	44	4	/	20-34	500	450	1711
	400	280	620	550	/	505	48	4	/	16-36	500	715	650	/	608	44	4	/	20-34	500	450	1780
A48Y-40	20	15	105	75	51	55	16	2	4	4-14	25	115	85	/	65	16	2	/	4-14	110	95	411
	25	16	115	85	58	65	16	2	4	4-14	32	140	100	/	78	18	2	/	4-18	110	95	411
	32	20	140	100	66	78	18	2	4	4-18	40	150	110	/	85	18	3	/	4-18	115	100	411
	40	25	150	110	76	85	18	3	4	4-18	50	165	125	/	100	20	3	/	4-18	120	110	472
	50	32	165	125	88	100	20	3	4	4-18	65	185	145	/	120	20	3	/	4-18	135	120	532
	65	40	185	145	110	120	22	3	4	8-18	80	200	160	/	135	20	3	/	8-18	160	140	556
	80	50	200	160	121	135	22	3	4	8-18	100	220	180	/	155	22	3	/	8-18	170	135	561
	100	65	235	190	150	160	24	3	4.5	8-23	125	250	210	/	185	22	3	/	8-18	195	175	667
	125	80	270	220	176	188	28	3	4.5	8-26	150	285	240	/	210	24	3	/	8-23	210	190	857
	150	100	300	250	204	218	30	3	4.5	8-26	175	310	270	/	240	26	3	/	8-23	255	230	915
	200	125	375	320	260	282	38	3	4.5	12-30	250	405	355	/	320	30	3	/	12-26	300	260	1073
	250	150	450	385	313	345	42	3	4.5	12-34	300	460	410	/	375	30	4	/	12-26	350	320	1307
	300	220	515	450	364	408	46	4	4.5	16-34	400	580	525	/	485	36	4	/	16-30	370	350	1233
	350	250	580	510	422	465	52	4	5	16-36	500	715	650	/	608	44	4	/	20-34	500	450	1711
	400	280	660	585	474	535	58	4	5	16-41	500	715	650	/	608	44	4	/	20-34	500	450	1711
A48Y-64	20	10	125	90	51	68	22	2	4	4-18	25	115	85	58	65	16	2	4	4-14	110	100	297
	25	16	140	100	58	78	22	2	4	4-18	32	140	100	66	78	18	2	4	4-18	110	100	310
	32	20	155	110	66	82	24	2	4	4-23	40	150	110	76	85	18	3	4	4-18	130	110	322
	40	25	170	125	76	95	24	3	4	4-23	50	165	125	88	100	20	3	4	4-18	130	120	352
	50	32	180	135	88	105	26	3	4	4-23	65	185	145	110	120	22	3	4	8-18	155	130	425
	65	40	205	160	110	130	28	3	4	8-23	80	200	160	121	135	22	3	4	8-18	175	160	570
	80	50	215	170	121	140	30	3	4	8-23	100	235	190	150	160	24	3	4.5	8-23	175	160	560
	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	690
	150	100	345	280	204	240	38	3	4.5	8-34	200	375	320	260	282	38	3	4.5	12-30	285	260	935
A48Y-100	20	10	125	90	51	68	22	2	4	4-18	25	115	85	58	65	16	2	4	4-14	96	85	297
	25	16	140	100	58	78	24	2	4	4-18	32	140	100	66	78	18	2	4	4-18	110	100	310
	32	20	155	110	66	82	24	2	4	4-23	40	150	110	76	85	18	3	4	4-18	130	110	322
	40	25	170	125	76	95	26	3	4	4-23	50	165	125	88	100	20	3	4	4-18	135	120	352
	50	32	195	145	88	112	28	3	4	4-26	65	185	145	110	120	22	3	4	8-18	155	135	425
	65	32	220	170	110	138	32	3	4	8-26	80	200	160	121	135	22	3	4	8-18	175	160	570
	80	40	230	180	121	148	34	3	4	8-26	100	235	190	150	160	24	3	4.5	8-23	175	160	560
	100	50	265	210	150	172	38	3	4.5	8-30	125	270	220	176	188	28	3	4.5	8-25	195	195	690
	150	80	355	290	204	250	46	3	4.5	12-34	200	375	320	260	282	38	3	4.5	12-30	280	265	935