IDV™ Inline Design Valve

Inline body design reclosing Safety Relief Valve, with conventional and/or balanced (bellows) designs.

IDV™ Inline Design Valve

Performance Features

  • In-line design with the same inlet and outlet flangeconnection size
  • Compact and light weight compared to traditional API safety relief valves
  • Superior capacity to API safety relief valves
  • ANSI/ASME B 16.5 and International flange connections
  • Optional integrated rupture disk at lnlet of valve
  • Smaller size; may be able to use a smaller valve size
  • Convenience of an in line flanged design
  • Install horizontally or vertically
  • Set pressure independent of back pressure, suitable for variable back pressure applications


Request a Quote

  • Set Pressures
  • Tolerance
  • Materials & Accessories
  • Documentation

Set Pressures

BPAV™ Air Capabilities
Inlet Size Outlet Size Flow Area* Set Pressure Range Media Code Section
1 1  0.66 sq in 15-500 psi Air XIII
1.5 1.5 1.59 sq in 15-500 psi Air XIII
2 2 2.69 sq in 15-500 psi Air XIII
3 3 5.95 sq in 15-500 psi Air XIII
4 4 10.40 sq in 15-500 psi Air XIII
6 6 23.52 sq in 15-500 psi Air XIII
8 8 41.27 sq in 15-500 psi Air XIII
*Minimum Net Flow Area (MNFA)

Burst Tolerance

Marked Burst Pressure Burst Tolerance
> 40 psig (> 2.7 barg) ± 5%
< 40 psig (< 2.7 barg) ± 2 psi
Operating Pressure Ratio 90% of set point over 1.38 barg; 90% of minimum below 1.38 barg.

Dimensions

Inlet/Outlet ØD1 K1 K2 T1 H W1 W2 ØD2 T1 Weight
in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm lbs
1 x 1.5 25 x 40 1.05 26.7 4.5 114.3 4.13 104.9 1.01 25.6 21.5 546.1 9.67 244 6.64 168.6 1.5 38.1 1.19 30.2 70
1.5 x 2 40 x 50 1.61 40.9 6 152.4 4.87 123.7 1.19 30.2 24 609.6 11.3 287 8.5 215.9 1.94 49.3 1.31 33.3 115
2 x 3 50 x 80 2.07 52.5 4.87 123.7 5.37 136.4 0.87 22 24 609.6 8.61 218.7 8.25 208.3 2.9 73.6 1.12 28.4 100
3 x 4 80 x 100 3.07 77.9 6.37 161.8 6.13 155.7 1.18 29.9 31 787.4 12.04 305.8 10.95 278.1 3.83 97.3 1.31 33.3 210
4 x 6 100 x 150 4.03 102.4 8.25 209.5 7.75 196.8 1.31 33.3 41.5 1054.1 14.04 356.6 12.55 318.7 5.76 143.3 1.5 38.1 360
6 x 8 150 x 200 6.07 154.2 9.5 241.3 9.44 239.8 1.5 38.1 47 1193.8 17.04 432.8 16.14 410 7.63 193.8 1.68 42.7 650
8 x 10 200 x 250 7.98 202.7 11 279.4 10.87 276 1.68 42.6 62 1574.8 19.12 485.6 17.5 444.5 9.56 242.8 1.93 49 1050

Materials of Construction

Minimum Standard Materials
  Carbon Steel Stainless Steel Low Temp Carbon Steel
Body ✓ ✓ ✓
Disc and Spindle (Internals)   ✓  
Alternative Materials availabile upon request, e.g Inconel 625, Duplex, Supler Duplex

Flange Torque*

Size Flange Rating Number of Studs Diam. Of Studs Minmum Length of Studs Stud Torque
in mm ANSI in in mm ft-lbs N-m
1 25 150 4 0.5 4 101.6 23 31
1.5 40 150 4 0.5 4.5 114.3 27 37
2 50 150 4 0.625 4.25 108 51 69
3 75 150 4 0.875 5.25 133.3 60 82
4 100 150 8  0.625 5 127 51 70
6 150 150 8 0.75 5.75 146 85 115
8 200 150 8 0.75 6 152.4 97 132
10 250 150 12 0.875 6.5 165.1 127 173

Accessories

BS&B supplies many of the accessories required to safely and conveniently install our overpressure relief devices and complementary products. Through our professional team and global network of sales engineers and procurement personnel, we are able to provide the highest quality accessory products to meet your installation requirements.

Saf-T-Pin™ Buckling Pin Cartridge

The BPAV can be provided with buckling pin cartridges that are installed like an electrical fuse. The Saf-T-Pin buckling pin cartridge allows a “quick-change” option of buckling pins with a simple push-in/pull-out design for installation within the enclosure. Each Saf-T-Pin cartridge contains a calibrated buckling pin that is perfectly mounted for optimum performance.

Replacement Buckling Pins

Stainless steel pins with tags containing pressure and traceability information including the serial number of the BPAV device.

Product Literature

Nu-Saf™ Rupture Disk Brochure
Burst Alert Sensors Brochure

Installations

Nu-Saf™ Installation Instructions
Burst Alert Leak Dectector Installation Instruction
Burst Alert Sensor Installation Instruction

IDV Safety Valve Series Types

Disk Type
IDV Conventional / Standard (IDV) Valve
IDV-B IDV with a Bellows to isolate spring
IDV-C Standard IDV with Rupture Disk Cassette inserted into the inlet
IDV-H Standard IDV with an integrated Safety Head Outlet Flange
IDV-CB IDV-C with bellows
IDV-HB IDV-H with bellows