pressure reducing valves - · pdf filethe right solution is the installation of a pressure...
TRANSCRIPT
PRESSURE REDUCING VALVES
SOCLA, MANUFACTURER...
PRESSURE
Robotized assembling machines guaran-tee a constant level of quality.
Assembling
The best modern CAD/CAM tools to mas-ter the complex shaped products and guarantee robustness and hydraulic per-formances.
Conception, innovation
Pressure reducing valve machining
Automatic machine for pressure reducing valve assembling
Technical department
Machines which guarantee good-quality and precision products and run through machining without dismantling and return.
Machining
The equipments are individually tested and adjusted.
Engineering test
Testing bed
Pressure reducing valves
C 301
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AC 101
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C 101C 301
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C 101
C 101
C 901
C 301
C 301
C 301
C 201 PP
C 306
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C 108
C 401
C 101C 301
C 301
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AC 101
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L
B
M
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C 101C 301
K
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C 101
C 101
C 901
C 301
C 301
C 301
C 201 PP
C 306
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1
P
C 108
C 401
C 101C 301
C 301
I
AC 101
C
L
B
M
E
F
D
P
O
C 101C 301
K
J
S
R
Q
H
G
C 101
C 101
C 901
C 301
C 301
C 301
C 201 PP
C 306
N
1
P
C 108
C 401
C 101C 301
C 301
I
AC 101
C
L
B
M
E
F
D
P
O
C 101C 301
K
J
S
R
Q
H
G
C 101
C 101
C 901
C 301
C 301
C 301
C 201 PP
C 306
N
1
P
C 108
C 401
C 101C 301
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A COMPLETE RANGE ADAPTED TO ALL NEEDS IN PRESSURE REDUCING VALVES.
Here are some examples...
REDUCER
Miscellaneous industrial applications
Protection of the whole installation (hot and cold water supply systems).The pressure reducing valve is installed at the entrance of the main supply.
Private houses
Apartments protection The right solution is the installation of a pressure reducing valve on each floor (in very high buildings, this equipment is not necessary on the most high floors if the pressure is equal or under 3 bar).
Collective houses
Sanitary appliance and showers,Machines and work stations,Central heating systems,Compressed air lines.
Very low pressure for agriculture, irrigation
A specific range specially adapted to low pressure.
A LARGE AND COMPLETE RANGE
• 80°C max.ACS
NORVEGEByggForsk 0689
+
••••
THE PERFORMANCES...
Water pressure reducing and regulating are both used.
We use the term «reducing» because it is standard terminology, but our valves arereally regulators.
Because they control the downstream pressure whether there is a flow or not. The downs-tream cannot vary more than 7 or 8% of the up stream pressure when there is no flow and only by the head loss when there is flow.
A low value shows the hydraulic quality of agood regulator.
STANDARDS & AGREEMENTS MAIN PERMISSIBLEMEDIUMS
PRESSURE
PERMISSIBLETEMPERATURES
NOMINAL DIAMETERS
Upstream pressure 16 and 25 bardepending on the product.Downstream pressure from 0.5 to 7 bar with compensatingspring
From diameter 10 mmto diameter 100 mm
FRANCENF EN 1567
Hot and cold water
Compressed air
Natural gas
Domestic fuel
NF (types 11 and 9)
European StandardNF EN 1567
(Attestation de conformité sanitaire)
Pressure reducing valves
Pressurereducing valve
or Pressure
regulator valves ?
• Any position installation• Scale and dirt proof• No maintenance• No filter• Excellent acoustic and hydraulic performances• Upstream pressure up to 25 bar• Precise and permanent setting• All type of connections• A single model hot and cold water• Bronze casing
FLOW downstream :Outlet pressure drops. Spring pushes against the diaphragm and disc and opens the valve.The upstream pressure becomes for example 2,5 bar compared to 3bar at the beginning. The 0,5 bar difference is the head loss
NO FLOW downstream :Outlet pressure goes up again. When it corresponds to the setting, diaphragms and disc, push against the spring and thus close the valve.
INSTALLATION
ADJUSTMENT
In domestic water supply, the pressure reducing valves are fitted just after the water meter and thus protect the whole installation.If there is a frost risk, they should be protected.
They can be fitted in any position but in all cases the direction of flow must be correct as shown by the arrow engraved on the valve body.
To increase the pressure
To decrease the pressure
The water pressure reducing valves are always set under “no flow”,i.e. with all downstream taps or flow closed. The pressure gaugethus shows a “static” pressure.
To increase outlet pressure :• Tighten adjusting screw (clockwise)
To decrease outlet pressure :• Slacken the adjusting screw (anti-clockwise).• Release pressure by briefly opening a tap on outlet side. Close taps.• Then retighten adjusting screw to obtain required pressure. It is normal
to see a DOWNSTREAM pressure drop during flow downstream : this is the pressure drop.
OPERATING PRINCIPLE
The outlet pressure acts on the bottom face of the diaphragm, compressing the spring when it exceeds the pre-set value and thus closing the valve. As long as no water is drawn off the downstream side (no-flow condition), the outlet pressure is thus kept at the pre-set value.
When water is drawn off the downstream side, the outlet pressure decreases and the spring pushes against the diaphragm, opening the valve. Under pro-longed flow conditions, a self-damping effect occurs in the valve opening instead a series of jerky opening and closing movements.
Pressure reducing valves
Stainless Steel
(*)
A COMPLETE RANGEOF WATER PRESSURE REDUCING VALVES
> Flats and houses individual water supply
> Water supply of house blocks, collective housing
> Protection of individual device, water heater
> Flats and houses individual water supply
> Flats and houses individual water supply
Type 11male/male
Type 11BIS female/female
From DN 15 to 50 mm (except type 11EP)Downstream setting : 1 bar to 5.5 barSupplied preset at 3 barReference RC (compensating spring) for downstream pressure setting from 0.5 bar to 1 bar.11 EP : female union nut - male11 DO : removable fittings
Type 9male/male
Type 9BIS female/female
From DN 15 to 25 mmNon adjustable set at 3 bar.
Type 11BIS RCBPmale/male
DN 20 mmDownstream setting : from 0.1 to 0.6 bar
Type 5 SPmale/female
DN 20 mmDownstream setting : from 1 to 5.5 bar.Setting : supplied pre-set downstream
at 3 bar.Inlet male - Outlet insert nut.
Type 7BIS female/female
Type 7EPfemale/male
Type 7SPmale/female
Downstream setting : from 1 to 5.5 bar.Setting : supplied preset at 3 bar 7 BIS : double female ends7 EP : union nuts - male7 SP : male - union nuts Multi 7(*): delivered with 3 nuts allowing 16
different connecting possibilities
Type 10male/male
Type 10BIS female/female
Type 10TER with flanges
From DN 32 mm : 2 sides pressure cocks for pressure gauges. Downstream setting : 1 bar to 7 bar.Adjustable : supplied unset.RC reference (compensating spring) for downstream pressure setting from 0,5 bar to 1 bar.
Special for sea water(consult us)
> Very low pressure agriculture, irrigation, laboratory
1 pressure gauge connection at the bottom 2 pressure gauge connection on the side
1 pressure gauge connection at the bottom
A pressure gauge connection and drain at the bottom
1 drain connection at the bottom
2 sides pressure cocks for pressure gauges DN32 mm
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Type 11EPfemale/male
Type Multi 7Multi-connections
Pressure reducing valves
Type 11 DOmale/male
Type 10BIS BZ female/female
THE RANGE OF ACCESSORIES
> Pressure control
Type 487Pressure gauge nipple
• Plug 1/4”. • Brass up to 1” included - bronze upper sizes.
> Flow meter
Type 777
• Direct reading indicating instant flow rate, up to 25 l/min on domestic taps• Exclusive patent - ABS material.
> Gauges
Type 212ADPRESSADE
• With central needle. • Male thread 8/13 (1/4”).• Rubber cap.• Exclusive patent .
Gauges must never stay continuously under pressure. They must be protected by a stop valve.
Type 2212B
• Central needle. • Male thread 8/13 (1/4”). • Vertical.• Painted steel casing DN50.
Type 213BIS
• Male thread 8/13 (1/4”). • Female output.
> Stop Valve
The 487 nipple can be fixed for all pressure reducing valves (outlet or inlet) except flanges. Possibility of customisation (colour and
marking) depending on quantities.
For quick inspection of pressure on any ori-fice from 8 to 20 mm.
For more detail concerning our whole range, do not hesitate to ask for our technical data sheets
or to go on our internet site : www.socla.com.
Type 212Gwith glycerine bath Stainless steel casing DN 60 mm - Vertical
Type 212BISwith central needle Brass casing DN 50 mm vertical
Type 3212Bwith central needle Steel casing DN 50 mmHorizontal
Type 212BPwith central needle Steel casing DN 60 mm Vertical
Pressure reducing valves
Discover our technical data sheets
Some others types of gauges can be proposed, as follow :
• Control and maintain the downstream pressure at an adjustable reduced value, whether there is a flow or not.
• Keep an outlet pressure at a constant value, even with variation of the upstream pressure (the down-stream pressure cannot vary more than 10 % of the variation of the upstream pressure, according to the Standard).
• No maintenance required, not affected by scale or dirt.• Can be installed in any position.• Guarantee a high flow rate at a constant outlet
pressure because of low head loss.• Work as pressure reducing valve (standard terminology)
as well as “regulator” and as “pressure regulating valve” (when applies for gas).
• Adjustable : supplied pre-set at 3 bar.• 1/4” pressure gauge connection and drain at the
bottom of the casing.• Also available with compensating spring : type 11 RC, for
lower downstream pressure.
Technical data sheet
Type 11 and 11RC Pressure reducing valve
Applications and special features
• Connection : male/male (BSP)• Downstream pressure gauge connection : 1/4”• Permissible operating pressure PFA - water : See table• Maximum permissible pressure PS - other mediums :
See table • θ : Mini. -10 °C Maxi. in permanent service: 80 °C (40°C domestic fuel oil)• Mediums : water, air and neutral gas , domestic fuel oil.• Approvals : ACS - : Type 11 DN 15 - 25 : (11bis DN 15 - 20) • International construction Standards : Pressure reducing valves EN 1567 Thread connection NF EN ISO 228
Technical description
uk11_11rc - Updated : 25/09/2009 1
1/2 15 25 25 25 X 25 3.3 149B7068
3/4 20 25 25 25 X 25 3.3 149B7069
Type RC
L1, L2, G1 and G2 correspond to liquids/gas classified into degree of danger according to the Pressure Equipment Directive (PED).The article 3.3 applies to equipments with no CE marking.
BA
E
D
COverall dimensionsDN
D A B C E Weight
” mm mm mm mm mm kg
15 1/2 15/21 31 60 59 85 0,7
20 3/4 20/27 32 75 73 76,5 0,9
25 1’’ 26/34 40 102 94 122 2
32 1’’1/4 33/42 51 179 104 132 3,9
40 1’’1/2 40/49 46 185 104 132 5
50 2’’ 50/60 54 194 104 146 5,3
DN PFA (bar)
PS (bar) Cat. References Vvs-nr“ mm L1 L2 G1 G2
1/2 15 25 25 25 X 25 3.3 149B7054
3/4 20 25 25 25 X 25 3.3 149B7055
1’’ 25 25 25 25 X 25 3.3 149B7489
1’’1/4 32 25 25 25 X 25 3.3 149B7548
1’’1/2 40 25 25 25 X 25 3.3 149B7567
2’’ 50 25 25 25 X 25 3.3 149B7565
Shut Off
Protection
Non return
Regulation
Socla sas365 rue du Lieutenant Putier
71530 Virey-Le-GrandBP10273 - 71107 Chalon S/Saône Cedex
Tel. +33 3 85 97 42 42 - Fax +33 3 85 97 97 42e-mail:[email protected]
http://www.socla.com
Working hoursMonday to Thursday 8 a.m. to 5.30 p.m.
Friday 8 a.m. to 1.30 p.m.Socla - Desbordes - Sylax 2698
952
- 12
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