API 526 Liquid Relief Valve – 150LB 6Q8 – WCB Body & 316 Trim – Steam/Gas Compatible – Adjustable Set Pressure

API 526 Liquid Relief Valve – 150LB 6Q8 – WCB Body & 316 Trim – Steam/Gas Compatible – Adjustable Set Pressure

J-Series valves provide high quality and dependable overpressure protection for air, gas, steam, vapor, liquid and two-phase applications in one simple design. Now available with two new to the world technologies, Balanced Diaphragm and Bellows Leak Detection.

Appurtenance:

gas compatible adjustable set pressure-1

Features

✦ Air, water and steam capacity in accordance with ASME/NB

✦ Meets all major global pressure relief standards including ASME VIII, XIII, API 526/527, EN4126 and PED/CE.

✦ Highly customizable to meet most applications.

✦ Interchangeable parts to reduce maintenance costs.

✦ Full nozzle configuration.

✦ Simple and reliable design for easy maintenance.

✦ Soft seat options for superior seat tightness.

✦ Adjustable blowdown to reduce product loss.

✦ Restricted Lift available.

✦ Wired or Wireless Relief Monitoring available.

✦ For high back pressure conditions, TOSB bellows back pressure balancing safety valve can be selected.

Material details

标注3-4_01.jpg 标注3-4_02.jpg

Cap Types
4C2 Screwed with Plug		4N8 Lifting Lever with Plug	4C3 Packed Lifting with Plug

Item	Component	Type TOS NACE	Type TOBS NACE
1	Nozzle	316 Stainless Steel	316 Stainless Steel
2	Nozzle Gasket	Flexible Graphite/Stainless Steel	Flexible Graphite/Stainless Steel
3	Body	ASME SA216 GR WCB	ASME SA351 GR CF8M
4	Set Screw Gasket	Stainless Steel	Stainless Steel
5	Set Screw	Stainless Steel	316 Stainless Steel
6	Nozzle Ring	Stainless Steel	316 Stainless Steel
7	Disc	Stainless Steel	316 Stainless Steel
8	Retention Clip	Stainless Steel	Stainless Steel
9	Disc Holder	Stainless Steel	316 Stainless Steel
9A	Bellows	/	316L Stainless Steel
10	Guide	Stainless Steel	316 Stainless Steel
11	Guide Gasket	Stainless Steel	Stainless Steel
12	Bonnet Stud	ASME SA193 GR. B7	ASME SA193 GR. B8M
13	Bonnet Stud Nut	ASME SA194 CL 2H	ASME SA194 CL 8M
14	Spring Washers	Carbon Steel	Stainless Steel
15	Spring	Alloy Steel	Alloy Steel Corrosion Resistant Coating
16	Spindle	420 Stainless Steel	316 Stainless Steel
17	Adjusting Bolt	Stainless Steel	Stainless Steel
18	Cap Gasket	Stainless Steel	Stainless Steel
19	Adjusting Bolt Nut	Stainless Steel	Stainless Steel
20	Threaded Cap	Stainless Steel	Stainless Steel

American standard pressure dimension table

Orifice Areacm2	Inlet Flange Class	Type	Size(inch)	Connections		Maximum Set Pressure(MPa)						Back pressure limit38℃		Material		Inlet Temp.Range（℃）
			Inlet×Orif-ice×Outlet	Connections		Lnlet Temperature						Back pressure limit38℃		Material
			Inlet×Orif-ice×Outlet	Inlet	Outlet	-268~-60	-59~29	-29℃~38℃	38℃~232℃	233℃~427℃	427~538	TOS-4C2	TOBS-4C2	Body	Spring
71.290(Q)	1	TOS-01	6Q8	150LB	150LB			1.13	1.13	0.55		0.79	0.48	Carbon Steel.	Alloy Steel.	-29~427
	2	TOS-03	6Q8	300LB	150LB			1.13	1.13	1.13		0.79	0.48
	3	TOS-03a	6Q8	300LB	150LB			2.06	2.06	2.06		0.79	0.79
	4	TOS-06	6Q8	600LB	150LB			4.13	4.13	4.13		0.79	0.79
	2	TOS-03	6Q8	300LB	150LB					1.13	1.13	0.79	0.79	Chrome Molybde-num Steel.	Alloy Steel.	428~538
	4	TOS-06	6Q8	600LB	150LB					4.13	2.96	0.79	0.79	Chrome Molybde-num Steel.	Alloy Steel.	428~538
	1	TOS-01	6Q8	150LB	150LB	1.13	1.13	1.13	1.13	0.55	0.13	0.79	0.48	Austenitic Stainless Steel.	Alloy Steel. Stainless Steel.	-268~538
	2	TOS-03	6Q8	300LB	150LB	1.13	1.13	1.13	1.13	1.13	0.13	0.79	0.48
	3	TOS-03a	6Q8	300LB	150LB	1.72	2.06	2.06	2.06	2.06	2.06	0.79	0.79
	4	TOS-06	6Q8	600LB	150LB	2.06	4.13	4.13	4.13	4.13	4.13	0.79	0.79

Type		ANSI Flange Class		Center to Face		Total Thickness of Flange gnd Nozzle	Approximate height H
		ANSI Flange Class		outlet	lnlet	Total Thickness of Flange gnd Nozzle	Cap Type
		Inlet	Outlet	A	B	X	4C2	4N6	4C3
TOS-01	6Q8	150	150	241.5	239.5	59	1025	1115	1130
TOS-03	6Q8	300	150	241.5	239.5	59	1025	1115	1130
TOS-03a	6Q8	300	150	241.5	239.5	59	1025	1115	1130
TOS-06	6Q8	600	150	241.5	239.5	71	1100	1190	1205