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Quick Exhaust Valve - SQEV (1/4”, 3/8”, 1/2”, 3/4”, 1”)
features
  • Shavo's Quick Exhaust Valve having simple, compact design and constructions that grants for reliability in operations
  • Enables air to be exhausted quickly from air reservoirs and cylinders allowing higher cylinder speed to be achieved
  • Specially designed for severe environments
  • Applications include marine environments, oil and gas production, chemicals and food processing, medical analysis, corrosive atmosphere etc.
  • Can be used in every position, but for a prompt fluid discharge it is suggested to connect them as near as possible to the cylinder
  • CE, ATEX, EAC [(CUTR-10) equivalent to GOST R &K] approved
  • SIL3 capable as per IEC 61508
  • External and internal metallic parts are NACE MR 0175* approved

(*National Association of Corrosion Engineers MR-0175 defines requirements for sulphide stress cracking resistant materials used in oilwells and corrosive environments).
Parameters Specifications
Fluid / Operating Media Compressed Air
Inert Gases, Sweet (Natural) gas
Gases - Filtered lubricated or non-lubricated
Liquids - Low pressure hydraulic, mineral oil or water
Pipe Size / Connections 1/4”,3/8”,1/2”, 3/4”, 1”
Pipe Thread NPT - Standard
BSPT, BSP - Optional
Max. Working Pressure 12 bar (174 psi)
Material of Construction
Body, Cover, BUSH
Fastners
Seals, DISC (Elastomers)

SS 316L (NACE MR 0175 compliance)
SS 316
LNBR (Low Temperature Nitrile) - Standard
Operating Temperature Range (ambient) For Elastomers Low Temperature Nitrile : -60°C to +80°C (Std)
Supply to outlet (cyl) Standard Nominal flow rate at 6 (87 psi) supply pressure and 1 bar (14.5 psi) pressure drop (differential) 1/4” - 46 scfm (1290 slpm)
3/8” - 64 scfm (1810 slpm)
1/2” - 135 scfm (3810 slpm)
3/4” - 160 scfm (4520 slpm)
1” - 274 scfm (7700 slpm)
(Outlet (cyl) to Exhaust) Standard Nominal flow rate at 6 (87 psi) supply pressure and 1 bar (14.5 psi) pressure drop (differential) 1/4” - 98 scfm (2780 slpm)
3/8” - 135 scfm (3810 slpm)
1/2” - 194 scfm (5490 slpm)
3/4” - 228 scfm (6460 slpm)
1” - 388 scfm (11000 slpm)
CV Value
Size Supply to Outlet (cyl) Outlet (cyl) to Exhaust
1/4” 1.3 2.8
3/8” 1.8 3.8
1/2” 3.8 5.5
3/4” 4.5 6.5
1” 7.8 11.0
Weight 1/4” 0.33 kgs.
3/8” 0.52 kgs.
1/2” 0.83 kgs.
3/4” 1.15 kgs.
1” 3.70 kgs.

Note :
1) Fastners will not have NACE MR0175 compliance
2) Internal ‘wetted parts’ will have NACE MR0175 compliance

OPTION SELECTOR
 
Sample Model Number
S Q E V
-
L 2 N
-
P S
   
Position
0 1 2 3
-
4 5 6
-
7 8
   
0
 
 
S = Shavo
   
1 2 3
Product Description
QEV = Quick Exhaust Valve
 
4
Elastomer Type
L = Low Temperature Nitrile (LNBR)
 
5
Port Size
2 = 1/4”
3 = 3/8”
4 = 1/2”
6 = 3/4”
8 = 1”
 
6
Thread type
  Inlet Outlet (cyl) Exhaust
N NPT NPT NPT
[B] BSPT BSPT BSPT
[G] BSP BSP BSP
 
7
Test / Approval
X = Standard unit (without ATEX approved)
A = ATEX approved.
C = CE
E = EAC (CUTR-10)
S = SIL3
P = ATEX, CE, EAC, SIL3
B = ATEX, CE
D = ATEX, EAC
F = ATEX, SIL3
G = CE, EAC
H = CE, SIL3
J = EAC, SIL3
K = CE, EAC, SIL3
L = ATEX, EAC, SIL3
M = ATEX, CE, SIL3
N = ATEX, CE, EAC
O = Other customer special reqmt.if any.
 
8
Material of Construction
S = Standard SS316L version
   
Note : Option shown in the [ ] bracket are special, Please contact Sales HQ/Manufacturing.
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