"Injection Molding" Suppliers to the Rotomolding
Industry
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CUSTOM PLASTICS |
TANK VALVES AND VENTS PART NO. 752-B, 752-V, 760, 760 DOT-B, & 760
DOT-V |
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General Description of Valves
| This unique family of valves is intended to be used as safety devices in
Intermediate Bulk Containers. The valve body features 2 inch external threads
and is designed to be torqued into a spin weld fitting or a tank lid for
a leak-tight installation. (Recomended spin weld fitting, Part Number 58HD) |
Technical Specifications
Materials of Construction:
Valve Bodies & Plungers - High Density Polyethylene (HDPE).
O-rings - Nitrile [Buna] or Fluorocarbon [Viton]
Other O-ring materials can be used given sufficient lead time.
Springs - Zinc-plated Spring Steel and Stainless Steel.
Hastelloy C can be used given sufficient lead time.
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Functional Operation
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| 752 - Vacuum Breaker only, allows outside air to enter tank. Applications
include chemical spraying or rapid pump out of tank. Protects tank from
buckling. Tractor Test Certified. Venting with no spillage. |
| o Vacuum pressure to open __ 0.5 psi differential |
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| 760 - Combination Pressure Relief & Vacuum Breaker. Provides
both pressure relief and vacuum breaking with in a single housing. "Acts
as a 2-way breather." Similar in design to the #760 DOT, but releases
at lower pressure and has less stringent leak requirements. |
o Vacuum pressure to open ___0.5 psi differential
o Pressure relief____________1.5 psi |
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| 760 DOT - Combination Pressure Relief & Vacuum Breaker. Currently
used for DOT certified IBC's. |
o Vacuum pressure to open __ 0.5 psi differential
o No detectable leak ________3.0 psi
o Pressure relief____________4.0 psi |
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Additional Features
- A seal is formed at the internal tank surface, minimizing the contact
of product vapor with the spring surfaces.
- Pre-set factory pressure and suction relief levels. Once set, the unit
is permanently joined by ultrasonic welding, preventing alteration of the
specified pressure venting levels.
- Machined sealing surfaces.
- Dome-shaped cover to prevent ice and snow build-up from interfering
with valve function.
- Valve material contains a full complement of Environmental Stress Additives
(ESA) including Ultraviolet (UV) to prevent weathering.
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| Part No. |
Description |
O'Ring Seals |
Price < 50ea |
| #752-B |
Vacuum Breaker |
Nitrile [Buna-N] |
$8 |
| #752-V |
Vacuum Breaker |
Fluorocarbon [Viton] |
$12 |
| #760 |
Combination Valve |
Nitrile [Buna-N] |
$15 |
| #760 DOT-B |
Combination Valve |
Nitrile [Buna-N] |
$20 |
| #760 DOT-V |
Combination Valve |
Fluorocarbon [Viton] |
$24 |
Click Here
to see our Full line of products.
Main Office and Plant
1305 West Brooks St.
Ontario, Ca. 91762
Phone (909) 984-0200
FAX (909) 984-2983 |
CUSTOM
PLASTICS
INCORPORATED |
Valve Facility
37 East Highland
Tracy, Ca. 95376
Phone (209) 835-0296
FAX (209) 836-3592 |
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spinwelding.com
