Balance Bellows Spring Loaded Safety Valve

Product Description

Balance bellows spring loaded safety valve

low lift safety valve, metal to metal seated, standard pressure safety valve for liquids. Flanged connection acc. to ANSI B16.5, Approved for gases, and fluids
 

Full lift safety valve
Standard safety valve for fluids
metal to metal seated, with lifting device,
Inlet: Flanged connection acc. to ANSI B16.5
Outlet: Flanged connection acc. to ANSI B16.5

closed bonnet, balance bellows safety valve

 

Applications

Provided as safety device for protection against excessive pressure
in pressure vessels.
Approved for poisonous gases, corrosive medium and unstable backpressure equipment/ pipeline. 
Working temperatures: -29°C up to +200°C

 

Standards Compliance

Design and Manufacture: API-RP 520 
Face to Face(end to end): API526

Test and Inspection: API527

Main property and specifiecation
Normal Pressure	PN	150		300	600	900
Body strangth	Ps(MPa)	3.0		7.5	15	22.5
Set pressure	Pk(MPa)	0.1-2		1.6-5	3.2-10	8-15
Seal pressure	Pm(MPa)	90% Pk
Reseation pressure	Ph(MPa)	90% Pk
Relieving pressure	Pp(MPa)	1.1 Pk
Llift	H(mm)	1/  d0  4
Appropriate temperature		C	300
		P   R	200
Appropriate medium		C	Gas,Liquid
		P   R	Nitric Acid,Acetic Acid,Gas,Liquid

 

Code of throat diameter
Code	Diameter	Code	Diameter
D	10	L	50
E	13	M	55
F	16	N	60
G	20.5	P	72
H	26	Q	96
J	33	R	115
K	40	T	148

Main Dimension
TFWA44C150   TFWA44C150P   TFWA44C150R
Nominal Diameter DN(in)	Dimension (mm)
	do	D	D1	D2	b	t	Z- d	DN'	D'	D1'	D2'	b'	t'	Z- d'	L	L1	H
1/"  3/ "  2 4	D	89	60.5	35	12	5	4-15	20	98	70	43	14	1.6	4-15	90	90	340
3/ "    1" 4	D	98	70	43	14	5	4-15	25	108	79.5	51	15	1.6	4-15	96	92	350
1"    11/ "  2	D	108	79.5	51	15	5	4-15	40	127	98.5	73	18	1.6	4-15	115	105	360
1"    2"	D	108	79.5	51	15	5	4-15	50	152	120.5	92	18	1.6	4-19	115	105	360
11/ "    2"  2	G	127	98.5	73	18	5	4-15	50	152	120.5	92	18	1.6	4-19	121	124	380
11/"  21/ "  2 2	G	127	98.5	73	18	5	4-15	65	178	139.5	105	20	1.6	4-19	121	124	390
11/ "    3"  2	G	127	98.5	73	18	5	4-15	80	190	152.5	127	22	1.6	4-19	124	130	390
2"    21/ "  2	H	152	120.5	92	18	5	4-19	65	178	139.5	105	20	1.6	4-19	124	130	410
2"    3"	J	152	120.5	92	18	5	4-19	80	190	152.5	127	22	1.6	4-19	124	130	410
21/ "    4"  2	J	178	139.5	105	20	5	4-19	100	229	190.5	157	24	1.6	8-19	143	137	410
3"    4"	L	190	152.5	127	22	5	4-19	100	229	190.5	157	24	1.6	8-19	162	156	480
4"    6"	N	229	190.5	157	24	10	8-19	150	279	241.5	216	26	1.6	8-22	229	181	560
6"    8"	P	279	241.5	216	26	10	8-22	200	343	298.5	270	29	1.6	8-22	241	240	790
8"    10"	R	343	298.5	270	29	10	8-22	250	406	362	324	31	1.6	12-25	279	276	840
12"    14"	T	483	432	381	32	10	12-25	350	533	476	413	35	1.6	12-28	370	360	920
TFWA44C300   TFWA44C300P   TFWA44C300R
Nominal Diameter DN(in)	Dimension (mm)
	do	D	D1	D2	b	t	Z- d	DN'	D'	D1'	D2'	b'	t'	Z- d'	L	L1	H
1/"  3/ "  2 4	D	95	66.5	35	15	5	4-15	20	98	70	43	14	1.6	4-15	90	90	340
3/ "    1" 4	D	117	82.5	43	16	5	4-19	25	108	79.5	51	15	1.6	4-15	96	92	350
1"    11/ "  2	D	124	90	51	18	5	4-19	40	127	98.5	73	18	1.6	4-15	115	105	360
1"    2"	D	124	90	51	18	5	4-19	50	152	120.5	92	18	1.6	4-19	115	105	360
11/ "    2"  2	F	156	114.5	73	20	5	4-22	50	152	120.5	92	18	1.6	4-19	121	124	380
11/"  21/ "  2 2	F	156	114.5	73	20	5	4-22	65	178	139.5	105	20	1.6	4-19	121	124	390
11/ "    3"  2	F	156	114.5	73	20	5	4-22	80	190	152.5	127	22	1.6	4-19	124	130	390
2"    21/ "  2	H	165	127	92	22	5	8-19	65	178	139.5	105	20	1.6	4-19	124	130	410
2"    3"	H	165	127	92	22	5	8-19	80	190	152.5	127	22	1.6	4-19	124	130	410
21/ "    4"  2	J	190	149.5	105	24	5	8-22	100	229	190.5	157	24	1.6	8-19	143	137	420
3"    4"	L	210	168	127	28	5	8-22	100	229	190.5	157	24	1.6	8-19	162	156	480
4"    6"	N	254	200	157	32	10	8-22	150	279	241.5	216	26	1.6	8-22	210	197	560
6"    8"	P	318	270	216	38	10	12-22	200	343	298.5	270	29	1.6	8-22	241	240	790
8"    10"	R	381	330	270	42	10	12-25	250	406	362	324	31	1.6	12-25	279	276	840
:150Lb.   Remark:150Lb for outlet flange.
TFWA44C600   TFWA44C600P   TFWA44C600R
Nominal Diameter DN(in)	Dimension (mm)
	do	D	D1	D2	b	t	Z- d	DN'	D'	D1'	D2'	b'	t'	Z- d'	L	L1	H
3/ "    1"  4	D	118	82.5	43	16	7	4-19	25	108	79.5	51	15	1.6	4-15	96	92	360
1"    2"	D	124	89	51	19	7	4-19	50	152	120.5	92	18	1.6	4-19	115	105	370
11/ "    2"  2	F	156	114.5	73	22	7	4-22	50	152	120.5	92	18	1.6	4-19	152	124	370
11/"  21/ "  2 2	F	156	114.5	73	22	7	4-22	65	178	139.5	105	20	1.6	4-19	152	124	390
11/ "    3"  2	F	156	114.5	73	22	7	4-22	80	190	152.5	127	22	1.6	4-19	152	124	400
2"    21/ "  2	H	165	127	92	26	7	8-19	65	178	139.5	105	20	1.6	4-19	162	154	400
2"    3"	H	165	127	92	26	7	8-19	80	190	152.5	127	22	1.6	4-19	162	154	420
21/ "    4"  2	K	190	149	100	29	7	8-22	100	229	190.5	157	24	1.6	8-19	143	165	420
3"    4"	K	210	168	127	32	10	8-22	100	229	190.5	157	24	1.6	8-19	162	155	480
4"    6"	N	273	216	157	38	10	8-25	150	279	241.5	216	26	1.6	8-22	210	200	560
6"    8"	P	356	292	216	46	10	12-29	200	343	298.5	270	29	1.6	8-22	241	240	790
150Lb.   Remark:150Lb for outlet flange.
TFWA44C900   TFWA44C900P   TFWA44C900R
Nominal Diameter DN(in)	Dimension (mm)
	do	D	D1	D2	b	t	Z- d	DN'	D'	D1'	D2'	b'	t'	Z- d'	L	L1	H
11/ "    2"  2	F	178	123.8	73	32	10	4-29	50	152	120.5	92	18	1.6	4-19	165	124	380
2"    3"	H	216	165.1	92	38	10	8-26	80	190	152.5	129	22	1.6	4-19	162	154	420
3"    4"	J	241	190.5	127	38	10	8-26	100	229	190.5	157	24	1.6	8-19	181	184	480
4"    6"	K	292	234.9	157	44	12	8-32	150	279	241.5	216	26	1.6	8-22	222	197	560
:150Lb.   Remark:150Lb for outlet flange.

Factory Corner

Test & Inspection



FAQ
Q. Are you a trading company or a manufacturer?
A: We are a manufacturer as you can see our workshop as above.

Q. What is your payment term?
A:Normally T/T 30% in advance, balance to be paid before delivery.

Q: What is your main market?
A:North America,Greenland,South America,Africa,Southeast Assia, Former Soviet Republics ,East Assia,and Europe.
Q: Can I place sample order to your factory?
A: Yes, Samples can be provided.

Q:What kind of trade terms can you do?
A:EX-WORKS,FOB,CFR,CIF,etc.

Q: How long is your delivery time?
A: Generally it is 5-7 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is accordijng to quantity.