PN16
BURKERT 328661 is a 16-bank Type 8652 AirLINE modular valve island configured for pneumatic process automation. The assembly integrates 16 valve slots fitted with 5/2-way monostable CF-H pneumatic directional valves, communicating through a PROFIBUS DPV1 fieldbus module equipped with a 9-pin Sub-D interface. Constructed with an aluminum AirLINE Quick interface and brass push-in fittings (D10 supply connection and D6 working ports), the unit operates at nominal pressures from -1 bar to 10 bar, pilot pressure from 3 bar to 10 bar, and medium/ambient temperatures from -10 °C to +55 °C.
Pneumatic Configuration and Valve Assembly
Article 328661 is equipped with 16 identical pneumatic valve stations. Each valve position utilizes a 5/2-way monostable spool valve (circuit function CF-H) driven by Type 6164 pilot solenoid valves acting on Type 6534 pneumatic bodies. Main air delivery and working ports are arranged through high-density brass push-in connections directly mounted to an aluminum AirLINE Quick base.
| Parameter | Source Specification |
|---|---|
| Number of Valve Slots | 16 PCE |
| Valve Positions 1 to 16 | 5/2-way monostable CF-H |
| Pilot Valve Element | Type 6164 (pilot control for Type 6534 pneumatic valve) |
| Supply Port Size / Material | D10 push-in / Brass |
| Working Port Size / Material | D6 push-in / Brass |
| AirLINE Quick Adapter Material | Aluminium |
| Pilot Air Configuration | Internal auxiliary pilot air |
| Intermediate Feed Quantity | 1 PCE |
| Additional Supplies (Left / Right / Middle) | Without |
| Check Valves in Exhaust Ports 3 (R) and 5 (S) | No |
| Pneumatic HotSwap in Port 1 (P) | No |
Electrical Specifications and PROFIBUS Communication
The fieldbus interface links the 16 pneumatic stations directly to process control systems via PROFIBUS DPV1. Power delivery and communication run through isolated terminals designed for control cabinet integration.
| Characteristic | Technical Value |
|---|---|
| Modular Variant | Fieldbus module |
| Communication Protocol | PROFIBUS DPV1 |
| Hardware Interface 1 | Sub-D 9-pin |
| Digital Input Count | 0 DI (Electrical modules 1 to 4 without DI) |
| Nominal Operating Voltage | 24 V DC (±10%) |
| Current Consumption | 3 A |
| Max. Number of Valve Slice Functions Supported | 48 functions (16 used on article 328661) |
| Base Enclosure Protection Rating | IP20 (with suitable mating connectors) |
Operating Limits and Hazardous Area Compliance
BURKERT 328661 conforms to explosion protection standards for equipment Group II, Category 3G (gas) and Category 3D (dust) when installed inside an approved enclosure.
| Operating Condition | Specification Limit |
|---|---|
| Nominal Working Pressure Range | -1.0 bar to 10.0 bar |
| Pilot Pressure Range | 3.0 bar to 10.0 bar |
| Medium Temperature Range | -10 °C to +55 °C |
| Ambient Operating Temperature Range | -10 °C to +55 °C |
| Enclosure Internal Temperature Limit | ≤ +55 °C (maintains Temperature Class T4 compliance) |
| AirLINE Quick External Surface Temperature | ≤ 80 °C (when cabinet ambient is ≤ +55 °C) |
| ATEX Gas Protection Rating | II 3G Ex ec IIC Gc |
| ATEX Dust Protection Rating | II 3D Ex tc IIIC Dc |
| ATEX Certificate | BVS 20 ATEX E 031 U |
| IECEx Certificate | IECEx BVS 20.0024 U |
| CCC Certification | GB/T 3836.2021 series standards (via SITIIAS) |
| Production Audit Authority | PTB (CE0102) |
Installation Requirements and Safety Guidelines
For safe operation in Zone 2 / Zone 22 hazardous locations, the following operating criteria must be observed:
- Control Cabinet Rating: Mount the valve island inside a certified enclosure providing a minimum ingress protection of IP54 for gas atmospheres (protection type "ec") or IP6X for combustible dust environments (protection type "tc").
- Pollution Degree: Deploy only in environments with pollution degree 2 or better per IEC 60664-1.
- Transient Overvoltage Protection: External suppression must ensure that transient voltage spikes do not exceed 140% of the nominal peak supply voltage.
- De-energized Wiring: Terminal connections for 24 V power, SIA, EVS, and digital inputs must only be connected or disconnected while the circuit is completely de-energized unless the atmosphere is verified as non-explosive.
- HotSwap Restriction: Hot swapping of pneumatic valves is prohibited in explosive atmospheres unless testing instruments verify no hazardous atmosphere exists.
- Warning Label: Attach the supplementary label "WARNING DO NOT CONNECT OR DISCONNECT WHEN ENERGIZED" in a visible location on the assembly.
Device Identification and Nameplate Structure
Every Type 8652 valve island intended for potentially explosive environments features two label sets: a standard manufacturer plate and an Ex approval plate.
| Position | Description | Value / Specification |
|---|---|---|
| 1 | Device Type | Type 8652 AirLINE |
| 2 | Pressure Range | 3–10 bar (pilot) / -1–10 bar (nominal) |
| 3 | Ambient Temperature Range | -10 °C to +55 °C |
| 4 | Nominal Voltage & Current | 24 V DC / 3 A |
| 5 | Serial Number | Factory encoded |
| 6 | Manufacturing Code | Factory encoded |
| 7 | Order Number (Ident-No.) | 328661 |
| Position | Description (Code PX68) | Description (Code PU17) |
|---|---|---|
| 1 | Ex Marking Symbol | US/CA Zone Marking (Gas): Cl I, ZN 2, AEx ec IIC Gc / Ex ec IIC Gc U |
| 2 | ATEX Certificate: BVS 20 ATEX E 031 U | US/CA Zone Marking (Dust): Cl II, ZN 22, AEx tc IIIC Dc / Ex tc IIIC Dc U |
| 3 | ATEX Gas/Dust: II 3G Ex ec IIC Gc / II 3D Ex tc IIIC Dc | US/CA Division Marking: Cl I, Div 2, Gr A, B, C, D / Cl II, III, Div 2, Gr F, G |
| 4 | IECEx Certificate: IECEx BVS 20.0024 U | ATEX Certificate: BVS 20 ATEX E 031 U |
| 5 | IECEx Gas/Dust: Ex ec IIC Gc / Ex tc IIIC Dc | Ex Marking Symbol |
| 6 | Safety Warning: Electrical Connection & HotSwap | ATEX Gas/Dust: II 3G Ex ec IIC Gc / II 3D Ex tc IIIC Dc |
| 7 | — | IECEx Certificate: IECEx BVS 20.0024 U |
| 8 | — | IECEx Gas/Dust: Ex ec IIC Gc / Ex tc IIIC Dc |
| 9 | — | Safety Warning: Electrical Connection & HotSwap |
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