SHF - 8103 Red Bluff Rd - Pasadena TX 77507

832 456 2000

SRV SERIES
SUPERLOK RELIEF VALVES | 316 STAINLESS STEEL

APPLICATIONS: Instrumentation Devices

FEATURES

Compact design
Cracking pressure adjustable externally
Lock wire feature secures a given pressure setting
Each and every valve is tested at the factory


SET PRESSURE

Set pressure is the upstream pressure at which the first indication of flow occurs. Set pressure of each valve after initial relief is repeatable within 5% at room temperature.

SRVH
-
MS
-
8N
-
8
Y
SS
1
2
3
4
5

1. VALVE SERIES

  SRVL: Low Pressure
  SRVH: Hight Pressure


2. END CONNECTION

  S: Tube Fittng
  MS: Male Pipe Thread & Tube Fitting
  MF: Male Pipe Thread & Female Pipe Thread


3. INLET AND OUTLET CONNECTION SIZE & TYPE

FRACTIONAL
CONNECTION SIZE
1/4"
3/8"
1/2"
DESIGNATOR
4
6
8
METRIC
CONNECTION SIZE
6mm
8mm
12mm
DESIGNATOR
6M
8M
12M
THREAD
NPT
ISO TAPERED
DESIGNATOR
N
R

 4. SPRING DESIGNATOR

Y: 225 - 750 psig
O: 1500 - 2250 psig
W: 3000 - 4000 psig
G: 5000 - 6000 psig
P: 750 - 1500 psig
B: 2250 - 3000 psig
R: 4000 - 5000 psig

5. BODY MATERIAL

  SS: ASTM A182 F316 - STAINLESS STEEL


SRV SERIES | LOW PRESSURE SERIES

TECHNICAL DATA

-Maximum working pressure : 300 psig (20.6 bar)
-Cracking pressure range : 10~250 psig (0.69~17.2 bar)
-Orifice size : 4.8mm
-One spring for the full set pressure range
-If required spring kit, mention part no : RVL-SG

No.
Description
Material
No.
Description
Material
1
Body
SS 316
9
Seat Retainer
SS 316
2
Bonnet
SS 316
10
Seat
PTFE
3
Cracking Pressure Adj. Nut
SS 316
11
O-Ring
Viton
4
Retainer
SS 316
12
O-Ring
Viton
5
Stem Shaft
SS 316
13
O-Ring
Viton
6
Stem
SS 316
14
Spring
SS 304
7
Lock Nut
SS 316
15
Spring
Polyproplene
8
Spring Support
SS 316
-
-
-

SRV SERIES | HIGH PRESSURE SERIES

TECHNICAL DATA

-Maximum working Pressure: 6000 psig (413 bar)
-Cracking Pressure Range: 225~6000 psig (15.5~414 bar)
-Orifice size: 4.8mm
-Multiple springs for a selection of set pressure ranges

No.
Description
Material
No.
Description
Material
1
Body
SS 316
8
Spring Support
SS 316
2
Bonnet
SS 316
9
Stem Retainer
SS 316
3
Cracking Pressure Adj. Nut
SS 316
10
O-Ring
Viton
4
Retainer
SS 316
11
O-Ring
Viton
5
Stem Shaft
SS 316
12
Spring
SS 304
6
Stem Guide
SS 316
13
Cap
Polyproplene
7
Lock Nut
SS 316
-
-
-
Spring
Designator
Spring
Color
Cracking Pressure
psig
bar
kPa
Y
Yellow
225-750
15.5-51.5
1550-5150
P
Purple
750-1500
51.5-103
5150-10300
O
Orange
1500-2250
103-155
10300-15500
B
Brown
2250-3000
155-206
15500-20600
W
White
3000-4000
206-275
20600-27500
R
Red
4000-5000
275-344
27500-34400
G
Green
5000-6000
344-414
34400-41400

DIMENSIONS

PART NUMBER
ORIFICE
(mm)
END CONNECTION
DIMENSIONS (mm)
INLET
OUTLET
L1
L2
H

SRVL

or

SRV

S
4
4.8
1/4" SUPERLOK
38.7
37.3
104.6
S
6M
6mm SUPERLOK
38.7
37.3
104.6
S
8M
8mm SUPERLOK
38.7
37.3
104.6
S
6
3/8" SUPERLOK
44.4
44.4
111.7
S
8
1/2" SUPERLOK
46.7
46.7
114.0
S
12M
12mm SUPERLOK
46.7
46.7
114.0
MS
8N-8
1/2" Male NPT
1/2" SUPERLOK
46.7
35.7
103.0
MS
8N-12M
1/2" Male NPT
12mm SUPERLOK
46.7
35.7
103.0
MF
4N
1/4" Male NPT
1/4" Female NPT
30.0
32.1
99.5
MF
6N
3/8" Male NPT
3/8" Female NPT
34.5
32.2
99.5
MF
8N
1/2" Male NPT
1/2" Female NPT
38.0
35.7
103.0