API526 Pilot Operated Safety Relief Valve

Product Description

Pilot Operated Safety Relief Valve

Applicable Standard

• Design Standard: API520
• Performance Standard: API526
• Seat Tightness Test: API527
• End Connection: Screwed To ASME B 1.20.1, Socket Weld To ASME B 16.11, Butt Weld To ASME B16.25, Flanged To ASME B 16.5

Product Applications

The pilot operated safety relief valve is used for safety purpose in Oil and Gas industries. The pilot operation make these valves ideal for industrial applications in Oil and Gas.

Product Specification

• Size: 1" X 2" to 8" X 10"
• Rating: 150# X 150# to 2500# X 300#
• Pilot type: Pop action, Relief action
• End Connection: Flange End, Screwed end
• Blow Down Pressure: 10% To 15% Less Then Of The Set Pressure.
• Application : Air, Gas, Liquid
• Hydrostatic Test Pressure: 1.5 Times The Set Pressure
• Overpressure: 10% To 21% Of The Set Pressure
• Orifice Designation: As per API520
• Material: WCB, WC1, WC6, WC9, LCB, LCC, LC3, C5, C12, CF8, CF8M, CF3, CF3M,CF8C, CN7M, CD4MCu, Inconel, Duplex steel 4A, 5A, 6A, aluminium bronze, hastelloy c

Product Features

• Pilot Sensing Element
• Full Lift Pop Type Design
• Full Lift Modulating Type Design
• Stellited Nozzle & Disc Seating Area
• Floating Type Balance Seat Design
• Piston Op. Pilot Design For Pop Action
• Diaph. Op. Pilot Design For Modulating

Main property and specifiecation
Normal Pressure	PN	150	300	600	900	1,500
Body strangth	Ps(MPa)	3.0	7.5	15	22.5	37.5
Set pressure	Pk(MPa)	0.1-2	1.6-5	3.2-10	8-15	10-25
Seal pressure	Pm	90% Pk
Reseation pressure	Ph	90% Pk
Relieving pressure	Pp	1.1 Pk
Llift	H(mm)	1/  d0  4
Appropriate temperature		250
Appropriate medium		Air,oil,Steam,Water,Corrosive medium

 

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
Size	Orifice	Inlet Lb	Outlet Lb	Dimension			Size	Orifice	Inlet Lb	Outlet Lb	Dimension
				L	L1	C					L	L1	C
12	D.E.F	150	150	115	105	106	23	G.H.J	150	150	124	130	457
		300	150	115	105	106			300	150	124	130	457
		600	150	115	105	106			600	150	124	130	457
		900	300	121	125	508			900	300	171	167	559
		1,500	300	121	125	508			1,500	300	171	167	559
		2,500	300	121	125	508			2,500	300	171	178	584
11/     2	D.E.F	150	150	121	124	432	34	J.K.L	150	150	162	156	483
		300	150	121	124	432			300	150	162	156	483
		600	150	121	124	432			600	150	162	162	483
		900	300	140	149	533			900	300	181	190	610
		1,500	300	140	149	533			1,500	300	181	190	610
		2,500	300	140	149	533
11/     3	G.H	150	130	124	130	457	46	L.M.N.P	150	150	229	181	559
		300	130	124	130	457			300	150	229	181	559
		600	130	124	130	457			600	150	229	181	559
		900	162	171	162	559			900	300	233	249	711
		1,500	162	171	162	559			1,500	300	233	249	711
		2,500	162	171	162	559			2,500	600	264	249	711
68	Q.R	150	150	240	240	635	810	T	150	150	279	276	711
		300	150	240	240	635			300	150	279	276	711
		600	150	240	240	635			600	150	279	297	737

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.