Type V-108A, B, and V Emergency Vents

Type V-108A, B, and V Emergency Vents
Manufacturer:

OCECO V-108A Emergency Vents have stem guided, self closing covers which are designed to reset automatically after tank pressures have been relieved. Since these vents remain open only as long as is necessary to relieve overpressure, costly evaporation losses are prevented.

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OCECO V-108A Emergency Vents have stem guided, self closing covers which are designed to reset automatically after tank pressures have been relieved. Since these vents remain open only as long as is necessary to relieve overpressure, costly evaporation losses are prevented.

OCECO Emergency Pressure Relief Vents provide additional venting capacity beyond that of the operating vent to relieve excessive internal pressure resulting from unusual conditions such as exposure to an external fire.  The protection provided by emergency vents is often required by municipal “flammable liquid-codes” to prevent the possibility of tank rupture and subsequent loss of product.

The OCECO V-108A, V-108B and V-108BV Vents have a thin, highly flexible membrane seat.  This time-proven design provides tight seating which is essential on tanks containing volatile products.

All OCECO V-108 Vents may be furnished with special bases or non-standard materials of construction if required.

 

V-108A Specifications

SIZES: 12, 15 1/4, 18, 20 1/2 and 24 inch
BODY: Fabricated Steel or Aluminum
COVER: Aluminum
SEAT RING: Stainless Steel w/Steel Body
SEATING: Aluminum w/Aluminum Body
CLOSURE: Teflon Membrane or Synthetic Rubber Diaphragm
MOUNTINGS: Self Closing Stem-Guided
Blank or Drilled Base

SETTINGS:
Standard: 3″ W.C.
Minimum: 3″ W.C.
Maximum: 16 oz.

V-108A Dimensions

Size DIMENSIONS IN INCHES Shipping Wt. (lbs) ANSI 125 lb. Std.
A B* C Size and No.
of Bolts*
Alum. Steel BB Size & No
. of Bolts
12 19 17 11 1/2 7/8″ – 12 40 60 17 7/8″ – 12
15 1/4 23 1/2 18 1/4 14 3/8 5/8″ – 12 55 80 21 1/4 1″ – 16
18 25 21 1/2 14 3/4 5/8″ – 16 60 90 22 3/4 1 1/8″ – 16
20 1/2 27 1/2 23 1/2 16 1/8 5/8″ – 16 70 110 25 1 1/8″ -20
24 32 27 1/2 16 1/8″ 5/8″ – 20 85 160 29 1/2 1 1/4″ – 20
*Indicates OCECO standard drilling.  In the 20 1/2 and 24 inch sizes this conforms to the drilling API Roof Manholes

V-108B Specifications

SPECIFICATIONS:
SIZES: 15 1/4, 18, 20 1/2 and 24 inch
BODY: Fabricated Steel or Aluminum
COVER: Aluminum
SEAT RING: Stainless Steel w/Steel Body
SEATING: Aluminum w/Aluminum Body
CLOSURE: Teflon Membrane or Synthetic Rubber Diaphragm
MOUNTINGS: Manual Reset
Blank or Drilled Base

SETTINGS:

Standard:3″ W.C.
Minimum:3″ W.C.
Maximum:8 oz.

V-108BV Dimensions

Size DIMENSIONS IN INCHES SHIPPING WT. (LBS). ANSI 125 LB. Sth.
A B* C D Size & No
. of Bolts*
Alum. Steel BB Size & No
. of Bolts
15 1/4 23 1/2 18 1/4 15 1/4 10 3/4 5/8″ – 12 50 75 21 1/4 1″ -16
18 25 21 1/2 18 11 5/8″ – 16 60 85 22 3/4 1 1/8″ – 16
20 1/2 27 1/2 23 1/2 20 1/2 11 5/8″ – 16″ 65 105 25 1 1/8″ – 20
24 32 27 1/2 24 11 5/8″ – 20 85 150 29 1/2 1 1/4″ – 20
*Indicates OCECO standard drilling.  In the 20 1/2 and 24 inch sizes this conforms to the drilling in API Roof Manholes.

V-108BV Specifications

SPECIFICATIONS:
SIZES: 15 1/4, 18, 20 1/2 and 24 inch
BODY: Fabricated Steel or Aluminum
COVER: Aluminum
VACUUM VALVE: Aluminum
VACUUM SPRING: Stainless Steel
SEAT RING: Stainless Steel w/Steel Body
Aluminum w/Aluminum Body
SEATING: Teflon Membrane or Synthetic Rubber Diaphragm
CLOSURE: Manual Reset
MOUNTING: Blank or Drilled Base
SETTINGS: Pressure: Vacuum
Standard: 3″ W.C. 1/2 oz.
Minimum: 3″ W.C. 1/2 oz.
Maximum: 8 oz. 1 oz.

OCECO V-108BV Emergency Vents are similar in design and operation to the Type V-108 Vents, above.  In addition to providing relief of excessive internal tank pressures, the V-108BV offers a spring-loaded vacuum relief valve.  The V-108BV may also be used as a manhole to provide access for maintenance or inspection.

V-108BV Dimensions

Size DIMENSIONS IN INCHES SHIPPING WT. (LBS). ANSI 125 LB. Sth.
A B* C D Size & No
. of Bolts*
Alum. Steel BB Size & No
. of Bolts
15 1/4 23 1/2 18 1/4 15 1/4 10 3/4 5/8″ – 12 50 75 21 1/4 1″ -16
18 25 21 1/2 18 11 5/8″ – 16 60 85 22 3/4 1 1/8″ – 16
20 1/2 27 1/2 23 1/2 20 1/2 11 5/8″ – 16″ 65 105 25 1 1/8″ – 20
24 32 27 1/2 24 11 5/8″ – 20 85 150 29 1/2 1 1/4″ – 20
*Indicates OCECO standard drilling.  In the 20 1/2 and 24 inch sizes this conforms to the drilling in API Roof Manholes.

Request a Quote for Type V-108A, B, and V Emergency Vents

  • Specifications
  • Supporting Document (Optional)
  • Max. file size: 50 MB.
  • Hidden

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