Chemline SB Series Back Pressure/Relief Valves
|
 SB Series Back Pressure/Relief Valves in solid plastics and stainless steel are
now available from Chemline Plastics. They are designed for long maintenance-free
life on chemical dosing lines ¼" to 4". They offer reliable opening and adjustable
relief pressures of 3 to 150 psi. Advanced hydraulic design offers high flow rates,
low hysteresis, and low overpressure to fully open.
All-plastic construction (PVC, PP or PVDF) offers high chemical resistance at
reasonable cost. True union end connections up to 2" eliminate leakage problems
common with old-fashioned threaded body valves. The new "Chem-Flare" end
connections provide a long term zero leakage solution for sodium hypochlorite
services. SB17 is the compact model is for ¼" to ½" tubing, while the SB12 is
available for pipe sizes ½" to 4". The same valve offers both as both back
pressure and relief functions. For relief the valve is installed on the branch of a tee.
Plastic Back Pressure/Relief
Valves SB10/SB11
|
|
The
Chemline SB Series Back Pressure/Relief Valve has two functions.
As a Back Pressure Valve, installed in-line downstream of a pump,
the back pressure below the metering pump is maintained. When installed
in the branch of a tee it is a Pressure Relief Valve. The valve
stays closed until inlet pressure reaches the set pressure which
is adjusted by turning the spring tensioning bolt. Inlet pressure
acts on the Teflon® control diaphragm
opening the valve, allowing excess pressure to flow downwards through
the orifice.
The
SB10/11 Series is very sensitive to pressure changes and requires
low overpressure to fully open.
Sensitive and Reliable
Designed for Long Life
True Union Ends
|
PVC,
PP, PVDF
|
| Series: |
SB10
and SB11 |
| Sizes: |
3/8"
– 2" |
| Ends: |
True Union Socket or Threaded
Non Union Socket, Threaded,
Flanged or Butt (Spigot)†, ChemFlare |
| Control
Diaphgram: |
Teflon®
Bonded EPDM |
| Seals: |
EPDM, Viton® |
†
PP and PVDF spigot ends have DIN dimensions and will butt fuse directly
to Chemline PP and PVDF piping systems.
|
Back Pressure/Relief
Valve SB12 Series
|
|
The
Chemline SB12’s have a built-in check valve function, desirable for
dosing applications. They are not so sensitive as to open with every
pulsation from a metering pump.
Designed for Long Life
Ideal for Chemical Dosing Systems
Suitable for “Dirty” Fluids
|
PVC,
PP, PVDF
|
| Series: |
SB12 |
| Sizes: |
3/8"
– 4" |
| Ends: |
True Union Socket or Threaded
Non Union Socket, Threaded,
Flanged or Butt (Spigot)†, ChemFlare |
| Control
Diaphgram: |
Teflon®
Bonded EPDM |
| Seals: |
EPDM, Viton® |
†
PP and PVDF spigot ends have DIN dimensions and will butt fuse directly
to Chemline PP and PVDF piping systems.
|
Plastic Back Pressure/Relief
Valves SB17 Mini
|
|
The
Chemline “Mini”
SB17 size relief valves offer high performance in a compact package.
True Union Ends
Ideal for Chemical Dosing Systems
|
PVC,
PP, PVDF
|
| Series: |
SB17 |
| Sizes: |
1-4"
- 3/8" |
| Ends: |
True Union Socket or Threaded
ChemFlare Tube Ends (PVDF only) |
| Control
Diaphgram: |
Teflon®
Bonded EPDM |
| O-Rings: |
EPDM, Viton® |
|
|
|
For
More Product Information
|
|
 |
|
Or
Call: 416 - 240 - 1920
|
Click
Logo To Visit
|
Click on
the logo to visit Company Product Sites
on the
Process
Controls and Instrumentation web site.
|
If It's
New You'll Find It In Process
News!
|
|
