Compact series are a small size of spring loaded safety relief valve and sized according to API 520 but don’t selected accordance to API 526.
Compact series is a self-actuated spring-loaded pressure relief valve which is designed to open at a predetermined pressure and protect a vessel or system from excess pressure by removing or relieving fluid from that vessel or system.
This type of safety valve meet all the requirement of API 520, API 521 such as general requirement and sizing procedure.
Technical info | Metric unit | US unit |
Inlet size range | DN 8-DN 25 | 1/4″-1″ |
Outlet size range | DN 8-DN 40 | 1/4″-1,1/2″ |
Flanged Connection STD | DIN 1092-1 | ASME B16.5 |
Threaded Connection STD | DIN EN 10226-1 | ASME B1.20.1 |
Inlet Flange Rating | PN 20-PN 420 | CL 150-CL 2500 |
Orifice Letter | Kiasa special | Kiasa special |
Pressure range | 0.3 to 350 barg | 5 to 5110 psig |
Temperature Range | -270 to 280 ˚C | -450 to 536 ˚C |
Body Material | SA 105 , SA 479 430, SA 479 316, SA 479 304 | |
Spring Material | AISI 302, AISI 420, Inconel, DIN 17223 | |
Seat types | Soft Seat, Hard Seat(Metal to Metal) |
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Seat Materials | Metal Sealing :Stellited Metal Sealing :Stellited Soft Sealing : NBR Soft Sealing : HNBR Soft Sealing : Viton Soft Sealing : Kalrez |
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Balanced Types | Balanced piston | |
Cap Types | Screwed | |
Lever Types | Plain , Packed | |
Bonnet Types | Open , Close | |
Test Gag | Applicable | |
Heating jacket | Applicable |
ITEM | COMPONENT | TYPE 220 |
1 | BODY | SA 105/S.S.304/S.S.316 |
2 | CAP | SA 105/S.S.304/S.S.316 |
3 | GUIDE PLATE | — |
4 | NOZZLE | S.S.304/S.S.316 |
5 | GUIDE | S.S.304/S.S.316 |
6 | DISC | S.S.304/S.S.316 |
7 | SEAT HOLDER | S.S.304/S.S.316 |
8 | DOWN SPRING PLATE | S.S.304/S.S.316 |
9 | UP SPRING PLATE | S.S.304/S.S.316 |
10 | SPINDLE | S.S.304/S.S.316 |
11 | SPRING | S.S.302/S.S.420 |
12 | ADJUSTING SCREW | S.S.304/S.S.316 |
13 | LOCKING NUT | S.S.304/S.S.316 |
14 | PLATE RING | NBR/VITON/PTFE |
15 | OUTLET CONNECTOR | SA 105/S.S.304/S.S.316 |
16 | NOZZLE CONNECTOR | S.S.304/S.S.316 |
17 | FLANGES | SA 105/S.S.304/S.S.316 |
18 | SCREW | S.S.304/S.S.316 |
19 | KEY | S.S.304/S.S.316 |
20 | SPRING KEY | S.S.302 |
21 | HARD SEAT DISC | S.S.304/S.S.316 |
22 | HOOD | S.S.304/S.S.316 |
NOTE:
Items 6,7,14 are used just for soft seat types.
item 21,22 just for hard seat type
KIASA can upgrade materials without notice.
Every part can be replaced by other material acc. to customer specification
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HANDLING STORAGE AND PREINSTALLATION