Product

1/2" Flange PVDF PLV (Griffco)

  • Pressure Loading/Relief Valve
  • 1135 lph max flow
  • PVDF body, PTFE diaphragm
  • 1/2″ Flanged

Griffco diaphragm back pressure valves apply positive discharge pressure to a metering pump system to prevent siphoning and eliminate varying dosage rates caused by fluctuating downstream pressure. The diaphragm is held against the valve seat by an internal spring. When the preset pressure is exceeded, the diaphragm is forced up and chemical flows through the valve to the injection point. The valves are preset for 3.5 bar, however they are field adjustable from 1 – 10 bar via the adjustment screw. Installation should be as close to the injection point as possible to prevent chemical line drainage and it is most important that all chemical system equipment such as pulsation dampeners and pressure gauges are between the pump and back pressure valve.

Griffco’s new molded Noryl top extends the temperature and pressure rating of the standard valves. New valve designs continue 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-siphon valve. New construction ensures increased reliability in the rigorous service of municipal and industrial applications. Wetted materials include: PVC, CPVC, PP, PVDF, PTFE, 316 SS, A 20 and Hast. C. Available sizes: DN8, DN10 and DN15.

  • NEW Molded Noryl Top
  • High Reliability / Low Cost
  • Compact Size for OEM Applications
  • Adjustable Pressure Settings
  • Optional 25 Bar Rated Metal Valve
  • Anti-Siphon Function
  • Robust, Machined Body Construction
  • Vulcanised PTFE/EPDM Diaphragm
  • Wide Range of Materials
  • ISO 9001 Certified

Additional information

Weight2 kg
Brand

Griffco

Valve Type

Pressure Loading Valves

Max Flow (lph)

1135

Pressure Setting Range

01-Oct

Body

PVDF

Connections

1/2 Flanged

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Les Bunce

Hire Business Manager

Les Bunce is Hire Business Manager. He leads the WES Hire Business responsible for managing the supply of our Temporary Chemical Dosing hire fleet on both a planned and emergency basis. Les has over 25 years’ experience in the hire industry and fully understands our customers’ hire requirements.

Patrick Fisher

Capital Projects Director

Patrick Fisher is Capital Projects Director. He leads the business stream responsible for project management, design, engineering, manufacture and delivery of “Capital project” chemical dosing systems. A degree qualified engineer with over 10 years’ experience working in fluid delivery solutions to the water, general industrial, petrochemical, and food & beverage industries.

Bob Cook

Senior Proposals Manager

Bob Cook is Senior Proposals Manager. After completing a traditional engineering apprenticeship at the Royal Aircraft Establishment, Bob was one of the original partners who started the business in 1986. In addition to board activities, Bob now applies his considerable experience to developing proposals & solutions to meet customer requirements.

Ian Price

Dosing Products Business Manager

Ian Price is WES Dosing Products Business Manager, leading the business stream responsible for delivering a wide range of standardised chemical dosing packages, ad-hoc dosing needs and ‘off the shelf’ dosing products & solutions. A mechanical engineer with over 20 years’ experience in fluid handling solutions into the water, petrochemical, pharmaceutical and food & beverage markets.

Jamie Cole

Operations Director

Jamie Cole is Operations Director. Jamie joined the business in 2018 from a career in delivery of services to the property and utilities sectors. Jamie is responsible for the management of all external operations and activities of the business including installation, service, hire & warranty.

Graham Ward

Business Development Director

Graham Ward is Sales and Marketing Director. His extensive experience includes a number of senior roles working for various SMEs and large organisations in the water, power generation, petrochemical, marine and food & beverage industries. As a qualified marine engineer, Graham has established his career in Sales and Business Development and is responsible for the business development, marketing and sales of systems, products and services across WES.

Carl Millington

Non-Exec Director

Carl joined WES as Non-Exec chairman following an appointment via the Business Growth Service to assist the business with growth strategy. A highly experienced Business Mentor, Coach, Managing Director & Non-Exec Chairman, having led product, manufacturing, contracting and service provider businesses for nearly 30 years. A strong track record of market, sales and profit growth within a diverse range of sectors.

Core competencies include business growth strategies, board & business leadership, strategic planning, sales & marketing management, P&L & balance sheet management, acquisitions, divestments, outsourcing, TUPE transfer, mentoring & coaching.

Kevin Wheeler

Managing Director

Kevin Wheeler is Managing Director. Kevin trained as an Engineer at the Royal Aircraft Establishment and joined the business in 1989. Kevin now leads the Board of Directors setting strategy and defining priorities to meet the business objectives & growth aspirations whilst adding experience to technical issues where required.