Call 1-800-GRIFFCO   (1-800-474-3326)   Intl: +1-716-835-0891

Call 1-800-GRIFFCO (1-800-474-3326)
Intl: +1-716-835-0891

»
»
M-Series Low-Flow Back Pressure Valves
EnglishChinese (Simplified)FinnishFrenchGermanItalianJapaneseKoreanPortugueseSpanishTurkish

Griffco M-Series diaphragm low-flow back pressure valves are designed to enhance the performance of chemical feed systems by applying a continuous back pressure to the chemical feed pump, while also acting as an anti-syphon valve. Robust construction ensures reliability in the rigorous service of municipal and industrial applications.

M-Series Low-Flow Back Pressure Valves
M-Series Low-Flow Back Pressure Valves​

Optional ARV

Air release valves act as a priming valve for M-Series low-flow back pressure valves.

Valve Features

  • Anti-siphon function
  • Solid, robust, machined construction
  • Flanged, union, threaded and socket connection options
  • Molded Noryl top with integral hardware locking
  • 316L SS metal valve and top options
  • Molded PTFE/EPDM diaphragm
  • Adjustable up to 350 psi (24 bar)
  • 4 optional pressure ratings (springs)
  • Valve sizes from 1/4" to 1/2" or DN 8 to DN 15
  • Tamper-resistant adjustment screw
  • High-temperature option up to 300°F (149°C)

Griffco Benefits

  • High reliability at affordable price
  • Long diaphragm life
  • Wide range of valve materials
  • Multiple diaphragm material options
  • Factory or field settable

Available Sizes

  • 1/4" to 1/2" or DN 8 to DN 15

Wetted Materials

  • PVC
  • CPVC
  • Polypropylene
  • PVDF
  • Hastelloy® C

 

  • PTFE
  • Halar®
  • 316L SS
  • Alloy 20

M-Series BPM - Data Sheets

TitleDescriptionDate modifiedDownload
Data Sheet BPM (US) Imperial09-14-2020 Download
Data Sheet BPM (Intl) Metric09-14-2020 Download
Data Sheet BPM (Spanish) Metric09-14-2020 Download

M-Series BPM - Air Release Valve (ARV) Data Sheet

TitleDescriptionDate modifiedDownload
Sight Glass 05-22-2021 Download
ARV Priming Valve (US) Air Release Valve (Imperial)05-22-2021 Download
ARV Priming Valve (Spanish) Air Release Valve (Metric)05-22-2021 Download

M-Series BPM - IOM Manuals

TitleDescriptionDate modifiedDownload
IOM Manual BPM (US) Imperial05-21-2021 Download
IOM Manual BPM (Spanish) Metric05-21-2021 Download

M-Series BPM - Dimensional Drawings

M-Series 2-Port @ 180° (1/4" - 1/2") (DN 8 - DN 15)

TitleDescriptionDate modifiedDownload
Dim BPM 2Port@180 Threaded US 1/4" - 1/2"08-23-2020 Download
Dim BPM 2Port@180 Socket US 1/4" - 1/2"08-23-2020 Download
Dim BPMF 2Port@180 Flanged US 1/4" - 1/2"08-23-2020 Download
Dim BPMF 2Port@180 Flanged Metric DN 8 - DN 1508-23-2020 Download
Dim BPMU 2Port@180 Union US 1/4" - 1/2"08-23-2020 Download
Dim BPMU 2Port@180 Union Metric DN 8 - DN 1508-23-2020 Download

M-Series BPM - Sectional Drawings

TitleDescriptionDate modifiedDownload
M001 08-26-2020 Download

3D CAD Drawings Now Available

Three-dimensional CAD drawings are now available for you to download and use in your pumping system designs.

SHARE
Share on linkedin
Share on twitter
Share on facebook

Find Your Local Distributor

Locate an authorized Griffco Valve distributor that can provide you with sales, customer service, and technical support.

Try our New Pulsation Dampener Calculator

Protect your pumping system with the correct size Pulsation Dampener from Griffco Valve. Use the Griffco Pulsation Dampener Calculator.

The Griffco Commitment to You

Griffco strives to provide exceptional service and value to all its customers and employs talented professionals to ensure customer satisfaction.

Capabilities & Quality Certifications

Griffco Valve fully stands behind all the products it manufactures and sells. Find out more information about our quality certifications and organizations.

Receive News & Product Updates​