Description
GESTRA BB 32C–36C & BB 32A–36A Dual-Plate Check Valves
Dual-plate check valves prevent return flow in horizontal and vertical pipelines. They are wafer-type valves of double swing design.
For installation in horizontal pipelines, they are fitted with closing springs. For installation in vertical pipes with upward flow, closing springs may be included if required. For instal- lation in vertical pipes with downward flow, they require 5VO closing springs.
Dual-plate check valves can be used for liquids, gases and vapours in accordance with the Pressure Equipment Directive.
Versions
The EN series complies with European requirements and the ASME series complies with American requirements.
BB 3… is available made of steel (BB 3…C) or stainless steel (BB 3…A).
The swing disc’s standard seat gaskets are metal-to-metal seals.
Optional features
- The ASME series BB 3…ASME (NPS 6″ – 20″) is optionally available with face to face dimension according to EN Replaces BB 1…ASME and BB 2…ASME.
- Depending on the temperature limits and chemical resistance, seat gaskets such as EPDM, FPM (FKM), NBR or PTFE are available
- The stainless steel closing springs can be chosen according to installation position
- Closing springs optionally available made of Inconel (7WAI)
- For systems that may experience pressure surges, dampers are available
Material specifications
The equipment designations include material specifications:
- BB 32C, BB 34C, BB 35C, BB 36C: Steel
- BB 32A, BB 34A, BB 35A, BB 36A: Stainless steel
Type overview EN series
| PN | DN [mm] | ||||||||||||
| 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | |
| 10 | BB 32-36C BB 32-36A | BB 32/34C BB 32/34A | BB 32C BB 32A | ||||||||||
| 16 | BB 34C BB 34A | ||||||||||||
| 25 | BB 35/36C BB 35/36A | BB 35C BB 35A | |||||||||||
| 40 | BB 36C BB 36A | ||||||||||||
Type overview ASME series
|
Class |
DN/NPS [mm/inches] | ||||||||||||
| 2
50 |
2½
65 |
3
80 |
4
100 |
5
125 |
6
150 |
8
200 |
10
250 |
12
300 |
14
350 |
16
400 |
18
450 |
20
500 |
|
| 150 | BB 35C BB 35A | ||||||||||||
| 300 | BB 36C BB 36A | ||||||||||||
GESTRA BB 32C–36C & BB 32A–36A Dual-Plate Check Valves
GESTRA: The Ultimate Solution for Industrial Steam & Fluid Control Systems
GESTRA BB 32C, BB 34C, BB 35C, BB 36C & BB 32A, BB 34A, BB 35A, BB 36A Dual-Plate Check Valves
High-Performance Dual-Plate Check Valves for Industrial, Steam, and Power Plant Applications
GESTRA BB 32C, BB 34C, BB 35C, BB 36C steel and BB 32A, BB 34A, BB 35A, BB 36A stainless steel Dual-Plate Check Valves are engineered to provide reliable backflow prevention, low pressure loss, and long-term operational safety in demanding piping systems. Designed to comply with EN and ASME standards, these valves are ideal for global industrial and power plant installations.
If you are searching for a high-quality dual-plate check valve for steam, condensate, liquids, or gases, the GESTRA BB 32 / BB 34 / BB 35 / BB 36 series is a proven solution trusted worldwide.
What Is the GESTRA BB 32–36 Series Dual-Plate Check Valve?
A dual-plate check valve prevents reverse flow while minimizing pressure drop and protecting critical equipment.
The GESTRA BB 32, BB 34, BB 35, and BB 36 series feature a compact wafer-type design with spring-loaded plates that ensure fast closing response and excellent sealing performance.
These valves are specifically designed for:
- Steam and condensate systems
- High-pressure industrial pipelines
- Power generation facilities
- Chemical and process industries
Product Variants and Materials
🔹 Carbon Steel Versions
- GESTRA BB 32C
- GESTRA BB 34C
- GESTRA BB 35C
- GESTRA BB 36C
Designed for high mechanical strength and durability in standard industrial and power plant applications.
🔹 Stainless Steel Versions
- GESTRA BB 32A
- GESTRA BB 34A
- GESTRA BB 35A
- GESTRA BB 36A
Ideal for corrosive media, aggressive environments, and hygienic processes, offering superior corrosion resistance.
Standards, Pressure Ratings, and Sizes
EN Series
- Pressure ratings: PN 10 / PN 16 / PN 25 / PN 40
- Nominal sizes: DN 50 – DN 500
ASME Series
- Pressure classes: Class 150 / Class 300
- Pipe sizes: NPS 2” – 20”
This wide range allows seamless integration into European and international piping systems.
Key Advantages of GESTRA BB 32–36 Dual-Plate Check Valves
✔ Low Pressure Drop
Slim dual-plate design reduces flow resistance and improves energy efficiency.
✔ Fast Closing Mechanism
Spring-assisted plates prevent reverse flow, water hammer, and system damage.
✔ Compact Wafer Design
Short face-to-face dimension saves space and simplifies installation.
✔ High Operational Reliability
Stable performance even under frequent load and pressure fluctuations.
✔ Long Service Life
Robust construction ensures durability and low maintenance costs.
Technical Features of GESTRA BB 32C / BB 32A – BB 36C / BB 36A
- Dual-plate, spring-loaded design
- Optimized sealing surfaces
- High resistance to vibration and pressure surges
- Suitable for horizontal and vertical installation
- Excellent performance in steam, condensate, liquids, and gases
- Designed for continuous industrial operation
Typical Applications of GESTRA BB 32–36 Series
GESTRA dual-plate check valves are widely used in:
- Power generation plants
- Steam and condensate pipelines
- Oil & gas facilities
- Chemical and petrochemical industries
- District heating systems
- Industrial utility and process systems
Any application requiring safe and efficient non-return protection benefits from the GESTRA BB 32–36 series.
Why Choose GESTRA BB 32–36 Dual-Plate Check Valves?
Choosing GESTRA BB 32C, BB 34C, BB 35C, BB 36C and BB 32A, BB 34A, BB 35A, BB 36A Dual-Plate Check Valves means investing in:
- Globally recognized GESTRA engineering quality
- Compliance with EN and ASME standards
- Reduced energy losses and operating costs
- Improved system safety and reliability
- Long-term return on investment (ROI)
GESTRA is internationally known as a leader in steam and fluid control technology.
Request a Quote for GESTRA BB 32–36 Dual-Plate Check Valves
Enhance your piping system reliability with GESTRA BB 32C–BB 36C steel and BB 32A–BB 36A stainless steel Dual-Plate Check Valves.
📩 Contact us today for:
- Technical consultation and valve selection
- Datasheets and dimensional drawings
- Competitive pricing
- Fast worldwide delivery
GESTRA BB 32C, BB 34C, BB 35C, BB 36C and BB 32A, BB 34A, BB 35A, BB 36A Dual-Plate Check Valves deliver a compact, efficient, and reliable solution for backflow prevention in industrial and power plant systems. With broad size ranges, international standards compliance, and proven performance, the GESTRA BB 32–36 series stands among the top-tier dual-plate check valves in the global market.
- GESTRA BB 32C–36C & BB 32A–36A Dual-Plate Check Valves
- GESTRA Non-Return Valve RK 16A | ASME 150/300 PN 40
- GESTRA Non-Return Valve RK 41 | PN 6/10/16 Wafer Check Valve
- GESTRA Non-Return Valve SRK 22A | DIN 32676 Clamp PN 10
- GESTRA Non-Return Valve RK 86 RK 86A RKE 86 PN 10–40 DN 15–200
- GESTRA CB 24S 26 26S PN 6-40 DN 50 to 300 Swing Check Valve
- GESTRA VDM Mixing Cooler | High-Efficiency Steam Desuperheater Solution
- GESTRA PK 40 Sample Cooler | High-Performance Steam Sampling
PT Totalitas Teknik Indonesia
PT Totalitas Teknik Indonesia
PT Totalitas Teknik Indonesia
