Burkert – Type 8840 – Modular Process Valve Cluster – Distribution and Collecting

Modular process valve cluster – distribution and collecting

Type 8840 comes with ready to install modules of tried and tested Bürkert process valves. The valve cluster, based on a modular valve body, allows different configurations. The individual parts are joined hermetically tight and in a very compact way. No installation effort for pipework, fittings or sealings is needed.

For the sizes DN20 (¾”) and DN25 (1″) orbital welding is used. The smaller variants in DN10 are threaded together using trusted graphite seals. To avoid dangerous water hammer, all valves have the flow direction below the seat. This is made possible by the two variants for the fluidic main function distribution and collecting, mixing or feed.

Depending on the requirement and preferred type of automation, it is possible to choose from different actuator variants. The robust CLASSIC actuators (in stainless steel or plastic) are controlled by a central valve island or by a pilot valve. The proven ELEMENT actuators allow a simple decentralized automation by using intelligent control heads Furthermore it is possible to expand the system by using continuous control valves, sensors, customer specific pipework or further accessories.

type 8840

• Burkert - Type 6012 - 3/2 Way Direct-Acting Plunger Valve
• Burkert - Type 8647 - AirLINE SP Electro-Pneumatic Automation System
• BURKERT - TYPE 8697 Pneumatic control unit for decentralized automation of process valves ELEMENT
• Burkert - Type 8691 Control Head for Decentralized Automation of Process Valves (Type ELEMENT)
• Burkert - Type 8695 Control Head for Decentralized Automation of Process Valves (Type ELEMENT)
• BURKERT - TYPE 2000 Pneumatically operated 2/2 way angle seat valve CLASSIC

General Technical Data

Modular Process Valve Cluster Type 8840
Product Properties
Dimensions	Detailed information can be found in the data sheet.
Material
Body	Cast stainless steel 316L (CF3M)
Seal	PTFE
Spindle Packing	PTFE seal with spring compensation
INOX DN10 Actuator	Stainless steel (on request)
CLASSIC DN20, DN25 Actuator	PA (PPS on request)
ELEMENT DN20, DN25 Actuator	Actuator PPS, stainless steel cover 1.4561 (316Ti)
Nominal Diameter	DN10 – threaded DN20, DN25 – welded
Control Function	CFA (closed by spring force) CFB (opened by spring force) on request
Number of Valve Positions for DN10 (threaded)	2…9 (clusters with larger number of valves on request )
Number of Valve Positions for DN20, DN25 (welded)	2…5 (clusters with larger number of valves on request )
Performance Data
Nominal Pressure	PN25 (housing)
Pilot Pressure	Max. 10 bar
Medium Data
Medium	Water, alcohols, oils, fuels, hydraulic fluid, saline solutions, alkalis, organic solvents, vapour
Medium temperature	– 10…+ 180 °C
Viscosity	Max. 600 mm2/s
Control medium	Neutral gases, air
Process/Port Connection & Communication
Threaded Port Connection	G 3⁄8…G 1, NPT 3⁄8…NPT 1
Welded Port Connection	ISO 4200 (on request)
Clamp Port Connection	DIN 32676/series B (on request)
INOX DN10 Pilot Air Ports	Female elbow fitting (hose Ø4)
CLASSIC DN20, DN25 Pilot Air Ports	G1⁄4
ELEMENT DN20, DN25 Pilot Air Ports	Push-In 6/4
Approvals and Certificates
Conformity	FDA EC Regulation 1935/2004SIL
Approvals (on request)	Explosion proof ATEX
Environment and Installation
INOX DN10 Ambient Temperature	0…+ 60 °C
CLASSIC DN20, DN25 Ambient Temperature	– 10…+ 60 °C (PA actuator) + 5…+ 140 °C (PPS actuator)
ELEMENT DN20, DN25 Ambient Temperature	0…+ 60 °C

*For selecting the correct product please refer to the technical data, images and notes for proper use according to the data sheet, or contact Flu-Tech directly.

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