"Injection Molding" Suppliers to
the Rotomolding Industry
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CUSTOM PLASTICS |
TANK VALVES AND VENTS PART NO. 752-B, 752-V, 752-VH, 760,
760 DOT-B, & 760 DOT-V |
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General Description
of Valves
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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
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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. |
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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 / Per Pcs |
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#752-B |
Vacuum Breaker |
Nitrile [Buna-N] |
$9 |
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#752-V |
Vacuum Breaker |
Fluorocarbon [Viton] |
$11 |
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#752-VH |
Vacuum Breaker |
Hastelloy C Spring |
$15 |
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#760 |
Combination Valve |
Nitrile [Buna-N] |
$16 |
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#760 DOT-B |
Combination Valve |
Nitrile [Buna-N] |
$18 |
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#760 DOT-V |
Combination Valve |
Fluorocarbon [Viton] |
$21 |
Fittings | Driving Tools | Caps
| Bulkhead Fittngs | Grommets
| Tank Valves
Lick Wheels | Covers | Special | Process
| Ordering | Conditions
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
