
Product Description
The Type 2974 manually operated diaphragm valve consists of a manually operated actuator, a diaphragm and a T-valve body. The manual actuator with plastic handwheel ensures use in hygienic or aggressive ambient conditions. The flow-optimised valve body with minimum dead space enables high flow values and a wide range of possible applications. The valve body and the diaphragms are available in all common materials and variants. The actuator has a compact, autoclavable design and is compatible with all other Bürkert diaphragm valves. An explosion-proof ATEX/IECEx device variant is available. The manual actuator possesses a visual position indicator with reproducible stroke scale. The actuator also possesses an adjustable minimum and maximum stroke limitation and/or locking. The manual actuator can be optionally equipped with sensors for position feedback.
Technical Specifications
- Block body (VH)
- Stainless steel block material 1.4435 according to DIN EN 10088 and 316L according to ASTM Block body (VI): Stainless steel block material 1.4435 according to DIN EN 10088 and 316L according to ASME Actuator (diaphragm bonnet/handwheel): Stainless steel/PPS Diaphragm size: 15…50 (65…100 see Type 3234 ) Block body (VH/VI): Internally electrically polished: Ra ≤ 0.38 μm (NO17) (ASME BPE SF4/DIN HE4) EPDM (AD): - 10…+ 143 °C (steam sterilisation + 150 °C for 60 min) PTFE/EPDM (EA): - 10…+ 130 °C (steam sterilisation + 140 °C for 60 min) Advanced PTFE/EPDM (EU): - 5…+ 143 °C (steam sterilisation + 150 °C for 60 min) Nominal diameter: DN 08…DN 100 (¼"…4") Welded connection: DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B Clamp connection: DIN 32676 series A (DIN pipe) Stainless steel/PPS: - 10…+ 130 °C (short-term up to + 150 °C), autoclavable
Standards & Compliance
- HS Code
- 8481.80
Cross References
- Burkert 2974
- Buerkert 2974
- Bürkert 2974
- Type 2974
- Burkert Type 2974
Product Documentation
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Catalogue entry last verified: 2026-08-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy Type 2974?
- Type 2974 can be ordered from cballast.com as a Bürkert catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Bürkert product?
- The manufacturer part number is Type 2974.
- What is the HS code for Type 2974?
- The customs tariff (HS) code for Type 2974 is 8481.80.
- Who manufactures Type 2974?
- Type 2974 is a Bürkert product in the Valves range.
- Is a datasheet available for Type 2974?
- Yes — the Type 2974 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for Type 2974?
- The minimum order quantity is 1.
- Is Type 2974 available?
- Yes — Type 2974 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
