Back Pressure Valves: Unibody

Griffco’s new Unibody back pressure valve is the latest innovation to ensure leak-free connections and operation. This new design allows flexibility of changing connection types, provides ease of maintenance, and eliminates additional system components (extra unions) saving time and money.

As with all of the Griffco designs, the chemical feed system is safeguarded by applying a continuous back pressure to the chemical feed pump, while also acting as an anti-siphon valve. This new construction ensures increased leak-free reliability in the rigorous service of municipal and industrial applications.

Available Sizes

1/2″ to 1″ or DN 15 to DN 25

Maximum Flow Pulsating 500 gph (1,890 lph)
Maximum Flow Continuous 26 gpm (98 lpm)
Maximum Pressure 250 psi (17 bar)

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Unibody

Features

Solid, robust, single-piece machined construction
No seals or glued connections
Anti-siphon function
Available in PVC and CPVC
Union-style connections
Molded Noryl top with integral hardware locking
Vulcanized composite PTFE/EPDM diaphragm
Adjustable up to 250 psi (17 bar)
2 optional pressure ratings (springs)
Valve sizes from 1/2″ to 1″ or DN 15 to DN 25
Tamper-resistant adjustment screw

Griffco Benefits

High reliability at an affordable price
Long diaphragm life
Multiple diaphragm material options
Compact size for OEM applications
Two-year warranty
Tamper-resistant adjustment screw

Wetted Materials

PVC
CPVC

2 Year Warranty

SIZE

MAXIMUM FLOW
PULSATING

MAXIMUM FLOW
CONTINUOUS

MAXIMUM PRESSURE

IMPERIAL	METRIC	GPH	LPH	GPM	LPM	PSI	BAR
1/2″	DN 15	260	984	15	57	250	17
3/4″	DN 20	300	1,135	21	80	250	17
1″	DN 25	500	1,890	26	98	250	17

TITLE

DESCRIPTION

DATE MODIFIED

DOWNLOAD

Unibody BPU – Data Sheets
Data Sheet BPU (US)	Imperial	09-14-2020
Data Sheet BPU (Intl)	Metric	09-14-2020
Unibody BPU – Dimensional Drawings – Data Sheet Unibody M Series 2-Port @ 180° (1/2″) (DN 15)
Dim BPMUB 2Port@180 Union US	1/2″	08-23-2020
Dim BPMUB 2Port@180 Union Metric	DN 15	08-23-2020
Unibody BPU – Sectional Drawings
U001	—	08-26-2020

SKU	Product	Description
BPU100CPVD	1″ Unibody Back Pressure Valve	CPVC – Viton – 32 mm Union Connection – Viton O-ring
BPU100CP	1″ Unibody Back Pressure Valve	CPVC – Union Connection – Viton O-ring
BPU100CP1	1″ Unibody Back Pressure Valve	CPVC – Union Connection – 50 psi Spring – Viton O-ring Pressure Set: 20 psi
BPU100CP2	1″ Unibody Back Pressure Valve	CPVC – Union Connection – 250 psi Spring – Viton O-ring
BPU100CP2V	1″ Unibody Back Pressure Valve	CPVC – Union Connection – 250 psi Spring – Viton Diaphragm & O-ring
BPU100CPE	1″ Unibody Back Pressure Valve	CPVC – Union Connection – EPDM O-ring
BPU100CPQ	1″ Unibody Back Pressure Valve	CPVC – Union Connection – HDPE Union Connectors
BPU100CPV	1″ Unibody Back Pressure Valve	CPVC – Union Connection – Viton Diaphragm & O-ring
BPU100P	1″ Unibody Back Pressure Valve	PVC – Union Connection – Viton O-ring
BPU050PEQ	1/2″ Unibody Back Pressure Valve	PVC – Union Connection – EPDM O-ring – 19 mm HDPE Socket Ends

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