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Model No.
Service
Seat
Adjustable Range
(PSI)
Orifice
Dia (in.)
Port
Remarks
Relief
BPR
RVL-100
Liquid
Liquid or Gas
Stainless steel
1000 thru 10,000
.070
1/4 NPT
Not bubble tight
RVG-100
Gas
Gas
Nylon
Bubble tight
RV-300
Liquid or Gas
Stainless steel
3000 thru 30,000
1/4" Super Pressure
Not bubble tight
RV-600
10,000 thru 60,000
Model No.
Adjusted By
Sensing
Air Value
Nominal-Range (PSI)
Port
Configuration
Port
PCV-002
INTERNAL SPRING
LOADED BOLT
50-200
1/4
NPT

2 WAY
Three ports convertible to
NC or NO with plug provided

1/8
NPT
PCV-020
200-2000
PCV-100
1500-10,000
PCV-250
5000-25,000
PCV-E002
EXTERNAL
SPANNER NUT

(underneath the name plate)
50-20
1/4
NPT
Three ports useable for
either NC or NO applications
PCV-E020
200-2000
PCV-E100
1500-10,000
PCV-E250
5000-25,000
PCV-R025
REMOTE AIR
PRESSURE
REGULATOR
20-100 PSI
500-2500
1/4
NPT
PCV-R100
2000-10,000
PCV-R250
5000-25,000
Model No.
Basic
Configuration
Nominal
Area Ratios
Port/Max. Pressure PSI
Reverse
Flow
Flow Orifice
Dia. (in.)
Inlet
Outlet
UV-50
NORMALLY
OPEN
AIR PILOT TO
CLOSE,
SINGLE STAGE
50:1
1/4NPT
5000

1/4NPT
4000

BLOCKED
.213 Nom.
UV-80
80:1
1/4NPT
8000
.172 Nom.
UV-120
120:1
1/4NPT
12,000
.135 Nom.
UV-200
200:1
1/4" Super
Pressure
20,000
.100 Nom.
UV-150-2
Normally closed
Air pilot to open
Two stage
2nd stage 9:1
1st stage 250:1
1/2NPT
15,000
1/4NPT
10,000
Free
flow
.344 Nom.
2 stage
Model No.
Port
Maximum Pressure-PSI
Flow Orifice
Min. Dia. (Inches)
Static Seal
CVH-025N2
1/4 NPT
15,000 Liquid
11,250 Gas
.156
BUNA
CVH-025S2
1/4 NPT Super Pressure
CVH-050N2
1/2 NPT
20,000 Liquid
15,000 Gas
.344
PTFE
CVH-075N2
3/4 NPT
15,000 Liquid
11,250 Gas
.486
PTFE
CVH-100N2
1 NPT
12,000 Liquid
9,000 Gas
.540
PTFE
CVM-200N2
2 NPT
5,000 Liquid
3,750 Gas
1.750
NONE
Model No.
Port
Body Style
NVH-025T2A
1/4" Tube
Male
37° Flare
Angle
NVH-025T2B
Straight
NVH-025N2A
1/8 NPT
Angle
NVH-025N2B
Straight
Model No.
Port
Body Style
NVH-038T2A
3/8" Tube
Male
37° Flare
Angle
NVH-038T2B
Straight
NVH-038N2A
1/4 NPT
Angle
NVH-038N2B
Straight
Model No.
Internal
Volume-Cu. In.
Maximum
Pressure-PSI
Nom. Length
- Inches
Outside Dia.
- Inches
Ports
Both Ends
Alloy
PR-020
20
6,000
11
2.5
1/4 Super Pr.
4130 CD
PR-040
40
6,000
19
2.5
1/4 Super Pr.
4130 CD
PR-134
134
10,000
17
6.0
3/8 Super Pr.
4130 CD
PR-200
200
6,000
22
5.0
3/8 Super Pr.
4130 CD
PR-400
400
6,000
40
5.0
3/8 Super Pr.
4130 CD
PR-450
450
8,500
31
6.0
3/8 Super Pr.
4140 HT
PR-900
900
8,500
57
6.0
3/8 Super Pr.
4140 HT
PC-020A
20
8,000
23
1.5
1/4 NPT
304SS
PC-025B
25
8,000
29
1.5
1/4 NPT
304SS