BRD 泄压阀
浩盾 BRD 泄压阀广泛应用于钻井平台和船舶中防止通风管道系统中气压回流。
概述
- 焊连的外框可选材质为喷漆、镀锌或不锈钢。风叶为镀锌或不锈钢。
- 适合水平和垂直安装的型号
- 风叶包含硅胶密封，防止泄漏
- 可进行防爆认证
- 闭合的阀防泄漏等级符合 EN 1751 2 级。测试尺寸为 1000×1000 mm。
- 每片风叶相互连接且同时开闭
- 可通过改变重锤的位置调节开启压力
- 开启压力范围为 30 Pa 到 150 Pa（至多可选配 300 Pa）
- 重锤标配
- 重锤标配在右侧，也可选配左侧的重锤
- 调试时可对重锤进行最终调节
- 阀门结构可适应的最大管道压力为 5000 Pa，最大空气流速为 15 m/s。如果管道压力过高，请联系浩盾船舶寻求最佳解决方案。
Dimensions and Material Thickness
BRD pressure relief dampers meet international standards for both rectangular (width B 150-1200 mm and height H 150-1400 mm, 1 mm division) and circular ducts (Ø100 – 1250 mm). Non-standard dimensions are available on request. Standard flange width 27 mm. Flanges and drilling also available according to ISO 15138 standards. Modular construction sizes up to 2400×2800 mm are available. Standard frame material thickness 3 mm. Blades are made of two sheets, each of being 0.8 mm thick (sandwich design)..
BRD, general drawings
With circular connections
BRD circular, with connection flanges
Material and Finishing
| PART | MATERIAL | FINISHING |
| Frame | Carbon steel | Painted or galvanized |
| Frame | Stainless steel EN 1.4301 (AISI304), EN 1.4404 (AISI316L), EN 1.4432 (AISI316L) | – |
| Blades | Steel | Galvanized |
| Blades | Stainless steel EN 1.4301 (AISI304), EN 1.4404 (AISI316L), EN 1.4432 (AISI316L) | – |
| Maintenance-free bearings | Stainless steel EN 1.4404 (AISI316L) / Option: bronze bearings available | – |
| Shafts | Stainless steel EN 1.4404 (AISI316L) | – |
Standard frame material thickness 3 mm.
Blades are made of two sheets, each of being 0.8 mm thick.
Product Models and Accessories
- Models for horizontal and vertical installation available.
- Circular connection pieces are available.
- Standard construction places weights on the right hand side. Weights on the left hand side available as an option.
Operation Principles
Pressure-relief damper will allow one-way pressure relief in the ductwork. This feature is based on imbalanced blades. When the pressure in the duct rises above selected value (from 30 Pa to 150 Pa, up to 300 Pa optionally) the damper blades open to allow pressure relief. For higher opening pressure, contact Halton Marine. The minimum opening force can be adjusted with weights. When the pressure in the ductwork drops below minimum opening force required, the blades close and seal the duct.
Weights
Weights of standard Halton BRD dampers (kg). Frame thickness 3 mm.
| H/HEIGHT
(mm) |
B / WIDTH (mm) | |||||||||||
| 150 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | 1200 | |
| 150 | 8 | 9 | 11 | 13 | 15 | 16 | 18 | 20 | 22 | 24 | 25 | 27 |
| 200 | 10 | 12 | 12 | 14 | 16 | 19 | 20 | 22 | 24 | 26 | 28 | 29 |
| 300 | 12 | 13 | 15 | 18 | 20 | 21 | 24 | 26 | 29 | 31 | 34 | 35 |
| 400 | 14 | 15 | 18 | 20 | 23 | 25 | 28 | 30 | 33 | 36 | 37 | 40 |
| 500 | 17 | 17 | 21 | 24 | 27 | 29 | 32 | 35 | 37 | 40 | 43 | 45 |
| 600 | 19 | 20 | 24 | 26 | 29 | 32 | 36 | 39 | 42 | 45 | 47 | 51 |
| 700 | 21 | 23 | 26 | 30 | 33 | 37 | 40 | 43 | 47 | 50 | 53 | 57 |
| 800 | 22 | 24 | 27 | 33 | 36 | 40 | 43 | 47 | 51 | 54 | 58 | 62 |
| 900 | 26 | 28 | 32 | 36 | 39 | 44 | 48 | 52 | 56 | 60 | 63 | 67 |
| 1000 | 28 | 30 | 34 | 39 | 43 | 48 | 51 | 55 | 60 | 64 | 68 | 72 |
| 1100 | 31 | 33 | 38 | 42 | 47 | 51 | 56 | 60 | 65 | 70 | 72 | 78 |
| 1200 | 33 | 35 | 40 | 45 | 50 | 54 | 59 | 64 | 69 | 74 | 78 | 84 |
| 1300 | 36 | 38 | 44 | 48 | 53 | 58 | 64 | 69 | 74 | 79 | 83 | 89 |
| 1400 | 38 | 40 | 46 | 51 | 56 | 62 | 67 | 73 | 78 | 83 | 88 | 94 |
| D2 ØD | WEIGHT |
| mm | kg |
| 100 | 12 |
| 160 | 12 |
| 200 | 15 |
| 250 | 17 |
| 315 | 21 |
| 400 | 26 |
| 500 | 36 |
| 630 | 45 |
| 800 | 63 |
| 1000 | 87 |
| 1250 | 116 |
The above stated weights include counter weights.
Installation
Installation and maintenance instructions are with each pressure-relief damper delivery. Copies of Operation and Maintenance manuals are available from Halton Marine Sales offices and distributors.
Product Code
| (S)=Shape of Connection | ||||||
| (A) Circular (D1) | ||||||
| (B) Circular (D1) outlet | ||||||
| (C) Circular (D2) | ||||||
| (R) Rectangular | ||||||
| (W)=Width | ||||||
| Min=150 mm | ||||||
| Max=1200 mm | ||||||
| (H)=Height | ||||||
| Min=150 mm | ||||||
| Max=1400 mm | ||||||
| (D)=Diameter | ||||||
| Min=100 mm | ||||||
| Max=1250 mm | ||||||
| (SF)=Flange Option | ||||||
| (H0) Connection flange in circular connections | ||||||
| (H1) Connection + loose flange in circular connections | ||||||
| (HA) Flanges (2 sides) | ||||||
| (HB) Counter flanges (2 sides) | ||||||
| (HC) Counter flange (1 side) | ||||||
| (N0) (N0) ISO 15138 flange drilling CO+CIR | ||||||
| (N1) ISO 15138 flange drilling CO+LO+CIR | ||||||
| (NA) Not Assigned (circular connection) | ||||||
| (NR) ISO 15138 flange drilling | ||||||
| (DF)=Deep Frame Model | ||||||
| (N) No | ||||||
| (Y) Yes | ||||||
| (LM)=Left Hand Model | ||||||
| (N) No | ||||||
| (Y) Yes | ||||||
| (CW)=Counter Weights Included | ||||||
| (Y) Yes | ||||||
| (MA)=Material Blades | ||||||
| (AS) Stainless steel 0.8 mm EN1.4404 | ||||||
| (CS) Carbon steel 0.75 mm | ||||||
| (LS) Stainless steel 0.8 mm EN1.4432 | ||||||
| (SS) Stainless steel 0.8 mm EN1.4301 | ||||||
| (FM)=Frame Material | ||||||
| (A3) Stainless steel 3 mm EN1.4404 | ||||||
| (C3) Carbon steel 3 mm EN1.4404 | ||||||
| (L3) Stainless steel 3 mm EN1.4432 | ||||||
| (S3) Stainless steel 3 mm EN1.4301 | ||||||
| (FI)=Finishing | ||||||
| (HG) Hot galvanized | ||||||
| (NA) Not Assigned (acid treatment) | ||||||
| (PN) Painting | ||||||
| (BM)=Bearing Material | ||||||
| (BR) Bronze | ||||||
| (AS) Stainless steel EN1.4404 | ||||||
| Code example | ||||||
| BRD/R-150-150,SF=HA,DF=N,LM=N,MA=CS,FM=C3,FI=HG,BM=AS,ZT=N | ||||||
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