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 Ex (CUTR 12), EAC (CUTR 10) 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
Low temp. Nitrile(LNBR) - Std.
Operating Temperature Range (ambient) For Elastomers Low Temperature Nitrile : -60°C to +80°C (Std)
(Supply to outlet) Standard Nominal Flow rate at 6 (85 psi) supply pressure and 1 bar (14.5 psi) pressure drop (differential) 1/4” (high flow) - 46 scfm (1290 slpm)
3/8” (high flow) - 64 scfm (1810 slpm)
1/2” (high flow) - 135 scfm (3810 slpm)
3/4” (high flow) - 160 scfm (4520 slpm)
1” (high flow) - 274 scfm (7700 slpm)
1/2” (std.flow) - 90 scfm (2549 slpm)
1” (std.flow) - 285 scfm (8069 slpm)
(Outlet to Exhaust)Standard Nominal Flow rate at 6 (85 psi) supply pressure and 1 bar (14.5 psi) pressure drop (differential) 1/4” (high flow) - 98 scfm (2780 slpm)
3/8” (high flow) - 135 scfm (3810 slpm)
1/2” (high flow) - 194 scfm (5490 slpm)
3/4” (high flow) - 228 scfm (6460 slpm)
1” (high flow) - 388 scfm (11000 slpm)
1/2” (std.flow) - 150 scfm (4247 slpm)
1” (std.flow) - 348 scfm (9840 slpm)
CV Value
Size Supply to Outlet Outlet to Exhaust
1/4” (high flow) 1.3 2.8
3/8” (high flow) 1.8 3.8
1/2” (high flow) 3.8 5.5
3/4” (high flow) 4.5 6.5
1” (high flow) 7.8 11.0
1/2” (std. flow) 2.59 4.31
1” (std. flow) 8.2 10.0
Weight 1/4” (high flow)   0.324 kg.
3/8” (high flow)   0.471 kg.
1/2” (high flow)   0.772 kg.
3/4” (high flow)   1.090 kgs.
1” (high flow)   3.553 kgs.
1/2” (std. flow)   0.586 kg.
1” (std. flow)   1.400 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 Signal Exhaust
N NPT NPT NPT
[B] BSPT BSPT BSPT
[G] BSP BSP BSP
 
7
Test / Approval
A = ATEX APPROVED
B = ATEX, CE
C = CE
D = ATEX, EAC
E = EAC(CUTR-10)
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 REQUIREMENT IF ANY
P = ATEX, CE, EAC, SIL3
Q = ATEX, EAC Ex(CUTR-12)
R = EAC Ex(CUTR-12)
S = SIL3
T = CE, EAC Ex(CUTR-12)
U = SIL3, EAC Ex(CUTR-12)
V = ATEX, CE, SIL3, EAC Ex(CUTR-12)
W = ATEX, CE, EAC Ex(CUTR-12)
X = STANDARD UNIT (Witbout ATEX approved)
Y = ATEX, SIL3, EAC Ex(CUTR-12)
Z = CE, SIL3, EAC Ex(CUTR-12)
 
8
Material of Construction /
Flow capacity
S = SS316L Standard flow version
H = SS316L High flow version
   
Note: Options shown in [ ] bracket are special, please contact Sales office.
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