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)

Download Product Documents

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
BPU050PZ	1/2″ Unibody Back Pressure Valve	PVC – Union Connection – Viton O-ring – Threaded Union Connectors
BPU050PVAR	1/2″ Unibody Back Pressure Valve	PVC – Viton Diaphragm – Union Connection – Viton O-ring – with ARV
BPU050PV	1/2″ Unibody Back Pressure Valve	PVC – Viton – Union Connection – Viton O-rings..
BPU050PTV	1/2″ Unibody Back Pressure Valve	PVC – PTFE/Viton Diaphragm – Union Connection – Viton O-ring
BPU050PQ	1/2″ Unibody Back Pressure Valve	PVC – Union Connection – Viton O-ring – 19 mm HDPE Socket Ends – ProMinent #1058529
BPU050PH	1/2″ Unibody Back Pressure Valve	PVC – PTFE/EPDM – Union Connection – Hypalon O-ring
BPU050PG	1/2″ Unibody Back Pressure Valve	PVC – Union Connection – Grifflare
BPU050P	1/2″ Unibody Back Pressure Valve	PVC – Union Connection – Viton O-ring
BPU038P	1/2″ Unibody Back Pressure Valve	PVC – 3/8 Union Connection – Viton O-ring
BPU038PD	1/2″ Unibody Back Pressure Valve	PVC – 16 mm Union Connection – Viton O-ring – Label in bar

1 234…8