Brochure

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Flow
control
plate
Flow
control
seal
Inlet
• Air Gap/ Air Break
• Flow Control Device
• Flow direction
• Air Intake
• Cleanout
• Flow control orice
Hub Version
Example: 3933125
2 piece format
- 3” & 4” models
(2” available)
Compact
Version
Example: 3922125C
1 piece format
Flow Control Formats
Flow Control
Key to hydromechanical function and performance is ow control. If designing for
compliance with PDI-G101 an external ow control(s) SHALL be required as part of the
design and installation. Where acceptable to the Authority Having Jurisdiction, internal
means of ow control can be employed providing that the interceptor is approved to
the currently published version of ASME A112.14.3 –Type C or D. Any method of ow
control SHALL be accessible once in operation for cleaning and maintenance purposes.
The Canplas external ow control device can be recessed into the oor if required.
Extension sleeves available. (See Page 5)
Flow Control Location – Indirect Connection:
Some local jurisdictions require warewashing installations to be made on an indirect
basis incorporating an air gap.
An air gap prevents back up of contaminated water into the sinks/appliances in the
event of a system back ow. The ow control device must be incorporated before the
indirect connection to prevent overow occurring during high/maximum waste water
discharge. If an air gap is located within 6” of ow control device*, installation of the air
intake tee is optimal. (*Verify with Authority Having Jurisdiction)
Internal (Supplied Standard 75/100gpm)
On models 4075A04(T) and 40100A04(T) the internal ow control is located inside the dynamic inlet
bae, axed to the downstream part that moves forward when the bae is opened. This maintains
full accessibility when operational.
NOTE: Internal ow control plate will only be removed when replaced with an external equivalent of
the correct ow rate. Floor below installation can use the internal ow control as the secondary ow
control, the primary ow control being installed externally as close as possible to xtures.
Spigot Version
Example: 3933125AS
2 piece format
- 3” & 4” models
(2” available)
Threaded Version
Example: 3933125AT
2 piece format
- 3” & 4” models
(2” available)
Where required to be installed as an indirect plumbing system, the
initial means of ow control SHALL be installed upstream of the air
gap to prevent overow during xture/appliance discharge.
NOTE: The Flow Control cannot be solvent welded directly to the
interceptor. An appropriately sized pipe stub will be necessary
in the event that the FCD is in close proximity to the interceptor,
allowing connection only with locally approved Mechanical Joint
(MJ) couplings.
• Tight Enclosures
• Preferred Installation
External FCD
External FCD
External FCD
• Optional In Floor
The installation of a ball valve upstream of the ow control is recommended.
A ball valve provides a means of drain line isolation for maintenance.
Some local plumbing codes require that grease interceptors have an internal ow control to ensure drain lines do not bypass the grease interceptor.
However, if the ow control device is located immediately upstream of an interceptor, this is often considered as forming part of the interceptor.
Please contact your local representative if you require further clarication.
External (Supplied Standard up to 50gpm)
Hub x Hub format – Sch40 DWV. Nominal diameters 2”(Compact), 3” and 4”. For solvent weld
within ABS or PVC DWV drainage systems, use appropriately approved solvent cement.
Spigot (Sux ‘S’)
Supplied with Spigot format connections for installation with
locally approved Mechanical Joint (MJ) couplings.
Threaded (Sux ‘T’)
Supplied with Female Pipe Thread (FPT) connections. Installed to
Male Pipe Thread (MPT) using appropriate (PTFE) thread sealing tape.