Steam Safety Valve

Steam Safety Valve

Body: Cast Iron, WCB, SS304, SS316, Ductile Iron

Nozzle: SS304, SS316

Adjusting Ring: SS304, SS316

Disc: SS304, SS316

Guide Sleeve: SS304, SS316

Bonnet: Carbon Steel

Spring: Steel

Stem: SS304, SS316

Adjusting Bolt: Stainless Steel

Cap: Carbon Steel

Working Pressure: PN1.6, PN2.5, PN4.0, Class 150 to Class 300

End Connection: NPT, RF, RTJ

Design and Manufacture Standard: ASME 25.3, API 520, API 521, API 526, API 527

Face to Face Dimension: ASME B16.10, EN558-1, DIN 3202

End Connection Dimension: ASME B16.5, DIN 2543, DIN 2545, EN 12627

Test Standards: API 598, DIN 3230

Dimensions

Size	d0	D	D1	D2	b	t	Z- φd	DN’	D’	D1′	D2′	b’	t	Z’-φd’	L	L1	H
1/2″x3/4″	D	89	60.5	35	12	5	4-φ15	20	98	70	43	14	1.6	4-φ15	90	90	290
3/4″x1″4-15	D	98	70	43	14	5	4-φ15	25	108	79.5	51	15	1.6	4-φ15	96	92	310
1″x11/2″	D	108	79.5	51	15	5	4-φ15	40	127	98.5	73	18	1.6	4-φ15	115	105	320
1″x2″	D	108	79.5	51	15	5	4-φ15	50	152	120.5	92	18	1.6	4-φ19	115	105	320
11/2″x2″	G	127	98.5	73	18	5	4-φ15	50	152	120.5	92	18	1.6	4-φ19	121	124	350
11/2″x21/2″	G	127	98.5	73	18	5	4-φ15	65	178	139.5	105	20	1.6	4-φ19	121	124	360
11/2″x3″	G	127	98.5	73	18	5	4-φ15	80	190	152.5	127	22	1.6	4-φ19	124	130	360
2″x21/2″	H	152	120.5	92	18	5	4-φ19	65	178	139.5	105	20	1.6	4-φ19	124	130	380
2″x3″	J	152	120.5	92	18	5	4-φ19	80	190	152.5	127	22	1.6	4-φ19	124	130	380
21/2″x4″	J	178	139.5	105	20	5	4-φ19	100	229	190.5	157	24	1.6	8-φ19	143	137	380
3″x4″	L	190	152.5	127	22	5	4-φ19	100	229	190.5	157	24	1.6	8-φ19	162	156	480
4″x6″	N	229	190.5	157	24	10	8-φ19	150	279	241.5	216	26	1.6	8-φ22	210	197	540
6″x8″	P	279	241.5	216	26	10	8-φ22	200	343	298.5	270	29	1.6	8-φ22	241	240	760
8″x10″	R	343	298.5	270	29	10	8-φ22	250	406	362	324	31	1.6	12-φ25	279	276	830
12″x14″	T	483	432	381	32	10	12-φ25	350	533	476	413	35	1.6	12-φ29	370	360	890