Page 1
81-07
MODEL
(Full Internal Port)
681-07
(Reduced Internal Port)
Non-Slam Dual Speed Control Check Valve
• Simple Proven Design
• No-Slam Operation
• Drip-Tight Shut-Off
• Dual Speed Control
• No Packing Glands or Stuffing Boxes
• Available in a Variety of Materials
The Cla-Val Model 81-07/681-07 Non-Slam Dual Speed Control Check
Valve is a hydraulically operated No-Slam Check Valve with dual speed
controls. This valve opens when the pressure at the inlet exceeds the discharge pressure. A gradual rate of opening prevents sudden opening
surges. When a pressure reversal occurs, the higher downstream pressure
is applied to the cover chamber through the control tube lines, and the valve
closes drip tight.
This valve is ideally suited for use where a positive shutoff is required. The
rubber disc assures tight sealing even if the fluid contains grit or other smallsize particles. The simple packless design insures reliable operation and
freedom from leaks.
Schematic Diagram
Item Description
1 Hytrol (Reverse Flow Main Valve)
2 CV Flow Control (Opening)
3 CSC Swing Check Valve
4 CGA Ange Valve (Closing)
Optional Features
Item Description
P X141 Pressure Gauge
V X101 Valve Position Indicator
Typical Applications
Pump
CLA-VAL 81-07
Check Valve
Discharge To
Atmosphere
CLA-VAL 61-02
Pump Control Valve
Discharge To
Atmosphere
CLA-VAL 52-03/652-03
Surge Anticipator Valve
Pressure Sensing Line
Discharge To System
Note: The effectiveness of this valve is related to pipeline velocity. We recommend a maximum flow based on pipeline velocity of 6 feet per second.
If pipeline velocities exceed 6 feet per second, consideration should be
given to adding a Cla-Val Model 50-01 Pressure Relief Valve or a Cla-Val
Model 52 Series Surge Control Valve to the system.
CLA-VAL
50-01/650-01
Surge Relief Valve
TAN K
Isolation
Valve
Pump
81-07/681-07
Booster Pump
Check Valve
Deep Well Pump
This valve should be an integral part of any well designed pumping
system. It is used to prevent damaging and sometimes expensive
flow reversal.
Booster Pump
Install on the discharge of booster pumps to prevent return flow into tank when pump is off. Relief valve as shown
is good practice to minimize
surges when pump stops.
Page 2
Model 81-07 (Uses Basic Valve Model 100-01)
Pressure Ratings
Valve Body & Cover
Grade Material
ASTM A536 Ductile Iron B16.42 250 400 400 400
ASTM A216-WCB Cast Steel B16.5 285 400 400 400
ASTM B62 Bronze B16.24 225 400 400 400
Note: * ANSI standards are for flange dimensions only.
Flanged valves are available faced but not drilled.
‡ End Details machined to ANSI B2.1 specifications.
Valves for higher pressure are available; consult factory for details
(Recommended Maximum Pressure - psi)
Pressure Class
Flanged Grooved Threaded
ANSI
Standards*
150
Class
300
Class
300
Class
End‡
Details
Dimensions
(In inches)
H
Inlet
G
GG
GGG
100-01
Threaded &
Flanged
A
AA
AAA
B
Inlet
(Diameter)
D
DD
DDD
J
K
C
(MAX)
E
X
Outlet
F
FF
Y
Materials
Component Standard Material Combinations
Body & Cover Ductile Iron Cast Steel Bronze
Available Sizes 2" - 24" 2" - 16" 2" - 16"
Disc Retainer &
Diaphragm Washer
Trim: Disc Guide,
Seat & Cover Bearing
Disc Buna-N®Rubber
Diaphragm Nylon Reinforced Buna-N®Rubber
Stem, Nut & Spring Stainless Steel
Cast Iron Cast Steel Bronze
Bronze is Standard
Stainless Steel is Optional
100-01
Grooved
H
Inlet
For material options not listed, consult factory.
Cla-Val manufactures valves in more than 50 different alloys.
Model 81-07 Dimensions (In Inches)
Valve Size (Inches) 22 1/2 3 4 6 8 10 12 14 16 18 20 24
A Threaded
AA 150 ANSI
AAA 300 ANSI
AAAA Grooved End
B Dia.
C Max.
CC Max. Grooved End
D Threaded
DD 150 ANSI
DDD 300 ANSI
DDDD Grooved End
E
EE Grooved End
F 150 ANSI
FF 300 ANSI
G Threaded
GG 150 ANSI
GGG 300 ANSI
GGGG Grooved End
H NPT Body Tapping
J NPT Cover
K NPT Cover Tapping
Stem Travel
Approx. Ship Wt. Lbs.
X Pilot System 13 14 15 17 29 31 33 36 40 40 43 47 68
Y Pilot System 9 10 11 12 20 22 24 26 29 30 32 34 39
Z Pilot System 9 10 11 12 20 22 24 26 29 30 32 34 39
Center Plug
9.38 11.00 12.50 ——————————
9.38 11.00 12.00 15.00 20.00 25.38 29.75 34.00 39.00 41.38 46.00 52.00 61.50
10.00 11.62 13.25 15.62 21.00 26.38 31.12 35.50 40.50 43.50 47.64 53.62 63.24
9.00 11.00 12.50 15.00 20.00 25.38 ———————
6.62 8.00 9.12 11.50 15.75 20.00 23.62 28.00 32.75 35.50 41.50 45.00 53.16
6.50 7.56 8.19 10.62 13.38 16.00 17.12 20.88 24.19 25.00 39.06 41.90 43.93
5.75 6.88 7.25 9.31 12.12 14.62 ———————
4.75 5.50 6.25 ——————————
4.75 5.50 6.00 7.50 10.00 12.69 14.88 17.00 19.50 20.81 — — 30.75
5.00 5.88 6.38 7.88 10.50 13.25 15.56 17.75 20.25 21.62 — — 31.62
4.75 — 6.00 7.50 —————————
1.50 1.69 2.06 3.19 4.31 5.31 9.25 10.75 12.62 15.50 12.95 15.00 17.75
2.50 2.88 3.12 4.25 6.00 7.56 ———————
3.00 3.50 3.75 4.50 5.50 6.75 8.00 9.50 10.50 11.75 15.00 16.50 19.25
3.25 3.75 4.13 5.00 6.25 7.50 8.75 10.25 11.50 12.75 15.00 16.50 19.25
3.25 4.00 4.50 ——————————
3.25 4.00 4.00 5.00 6.00 8.00 8.62 13.75 14.88 15.69 — — 22.06
3.50 4.31 4.38 5.31 6.50 8.50 9.31 14.50 15.62 16.50 — — 22.90
3.25 — 4.25 5.00 —————————
.375 .50 .50 .75 .75 11111111
.50 .50 .50 .75 .75 1 1 1.25 1.5 2 1.5 1.5 1.5
.375 .50 .50 .75 .75 11111111
0.6 0.7 0.8 1.1 1.7 2.3 2.8 3.4 4.0 4.5 5.1 5.63 6.75
35 50 70 140 285 500 780 1165 1600 2265 2982 3900 6200
(Diameter)
B
Inlet
AAAA
J
K
DDDD
CC
(MAX)
EE
Z
Outlet
GGGG
X
Page 3
EE
D
E
Inlet
DD
AA
X
100-20
Flanged
F
A
C
(MAX)
K
J
H
Inlet
Outlet
FF
B
(Diameter)
Model 681-07 (Uses Basic Valve Model 100-20)
Dimensions
(In inches)
Pressure Ratings
Valve Body & Cover
Grade Material
ASTM A536 Ductile Iron B16.42 250 400
ASTM A216-WCB Cast Steel B16.5 285 400
ASTM B62 Bronze B16.24 225 400
Note: * ANSI standards are for flange dimensions only.
Flanged valves are available faced but not drilled.
Valves for higher pressure are available; consult factory for details
(Recommended Maximum Pressure - psi)
Pressure Class
Flanged
ANSI
Standards*
150
Class
Class
Materials
Component Standard Material Combinations
Body & Cover Ductile Iron Cast Steel Bronze
Available Sizes 3" - 30" 3" - 16" 3" - 16"
Disc Retainer &
Diaphragm Washer
Trim: Disc Guide,
Seat & Cover Bearing
Disc Buna-N®Rubber
Diaphragm Nylon Reinforced Buna-N®Rubber
Stem, Nut & Spring Stainless Steel
For material options not listed, consult factory.
Cla-Val manufactures valves in more than 50 different alloys.
Cast Iron Cast Steel Bronze
Bronze is Standard
Stainless Steel is Optional
300
Y
Z
Model 681-07 Dimensions (In Inches)
Valve Size (Inches)
A 150 ANSI
AA 300 ANSI
B Dia.
C Max.
D 150 ANSI
DD 300 ANSI
E 150 ANSI
EE 300 ANSI
F 150 ANSI
FF 300 ANSI
H NPT Body Tapping
J NPT Cover Center Plug
K NPT Cover Tapping
Stem Travel
Approx. Ship Wt. Lbs.
X Pilot System 13 15 27 30 33 36 36 41 40 46 55 68
Y Pilot System 10 11 18 20 22 24 26 26 30 30 30 39
Z Pilot System 10 11 18 20 22 24 26 26 30 30 30 39
*Consult Factory
34681012141618202430
10.25 13.88 17.75 21.38 26.00 30.00 34.25 35.00 42.12 48.00 48.00 63.25
11.00 14.50 18.62 22.38 27.38 31.50 35.75 36.62 43.63 49.62 49.75 63.75
6.62 9.12 11.50 15.75 20.00 23.62 27.47 28.00 35.44 35.44 35.44 53.19
7.00 8.62 11.62 15.00 17.88 21.00 20.88 25.75 25.00 31.00 31.00 43.94
— 6.94 8.88 10.69 CF* CF* CF* CF* CF* CF* CF* —
— 7.25 9.38 11.19 CF* CF* CF* CF* CF* CF* CF* —
— 5.50 6.75 7.25 CF* CF* CF* CF* CF* CF* CF* —
— 5.81 7.25 7.75 CF* CF* CF* CF* CF* CF* CF* —
3.75 4.50 5.50 6.75 8.00 9.50 11.00 11.75 15.88 14.56 17.00 19.88
4.12 5.00 6.25 7.50 8.75 10.25 11.50 12.75 15.88 16.06 19.00 22.00
.375 .50 .75 .75 11111111
.50 .50 .75 .75 1 1 1.25 1.25 2222
.375 .50 .75 .75 11111111
0.6 0.8 1.1 1.7 2.3 2.8 3.4 3.4 4.5 4.5 4.5 6.5
45 85 195 330 625 900 1250 1380 1500 2551 2733 6500
Page 4
C
81-07
Valve
Selection
100-01 Pattern: Globe (G), Angle (A), End Connections: Threaded (T), Grooved (GR), Flanged (F) Indicate Available Sizes
Inches 1 11⁄4 11⁄2
mm 25 32 40
2 2 1⁄2 3 4 6 8 10 12 14 16 18 20 24
50 65 80 100 150 200 250 300 350 400 450 500 600
30 36
750 900
Basic Valve
100-01
Suggested
Flow
(gpm)
Suggested
Flow
(Liters/Sec)
100-01 Series is the full internal port Hytrol. *Globe Grooved Only
681-07
Valve
Pattern
End Detail
Maximum
Maximum
Inches
3 4 6 8 10 12 14 16 18 20 24 30
G, A G, A G, A G, A G, A G, A G, A G, A G, A G, A G G G, A
T , F,GrT , F,
T , F,GrT , F,GrT , F,
Gr*
Gr*
T , F,
Gr*
FFFFFFF
63 90 138 240 550 950 1475 2100 2600 3400 4200 5200 7700
4.0 5.7 8.7 15.1 34.7 60 93 132 164 214 265 328 485
100-20 Pattern: Globe (G), Angle (A), End Connections: Flanged (F) Indicate Available Sizes
36 42 48
Selection
Basic Valve
100-20
Suggested
Flow
(gpm)
mm
Pattern
End Detail
Maximum
80 100 150 200 250 300 350 400 450 500 600 750
GG, AG, AG, AGGGG GGGG
FFFFFFFF FFFF
60 138 240 550 950 1475 2100 2100 3800 3800 3800 8400
900 1000 1200
Suggested
Flow
(Liters/Sec)
100-20 Series is the reduced internal port size version of the 100-01 Series.
Maximum
3.8 8.7 15.1 35 60 93 132 132 239 239 239 529
Pilot System Specifications
Temperature Rating
Water:
to 180°F. Max.
Speed Controls
Opening and closing speed controls are
standard
Note: Advise factory when ordering if valve will
*
not be installed with the main valve stem in a
vertical position.
on the 81-02 and 681-02 Model.
Materials
Standard Pilot System Materials
Fittings: Brass
Tubing
: Copper
Optional Pilot System Materials
Pilot Systems are available with
optional stainless steel or Monel
materials.
LA-VAL
PO Box 1325 Newport Beach CA 92659-0325
E-81-07/681-07 (R-1/2013)
Phone: 949-722-4800 Fax: 949-548-5441
CLA-VAL CANADA CLA-VAL EUROPE
4687 Christie Drive
Beamsville, Ontario
Canada L0R 1B4
Phone: 905-563-4963
Fax: 905-563-4040
©COPYRIGHT CLA-VAL 2013 Printed in USA
Specifications subject to change without notice.
Chemin dés Mesanges 1
CH-1032 Romanel/
Lausanne, Switzerland
Phone: 41-21-643-15-55
Fax: 41-21-643-15-50
www.cla-val.com
When Ordering,
Please Specify
1. Catalog No. 81-07 or 681-07
2. Valve Size
3. Pattern - Globe or Angle
4. Pressure Class
5. Threaded or Flanged
6. When Vertically Installed *
Represented By:
Loading...