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Model L12-TH
The Model L12-TH Thief Hatch outperforms the competition with industry-leading flow rates and precision tolerances to provide a superior sealing performance. Leakage rates less than 1 SCFH at 90% of set pressure keeps your tanks industry-standard compliant.
The L12-TH incorporates a spring-loaded pressure/vacuum relief valve within the hatch. Install the L12-TH on steel or fiberglass (FRP) low-pressure oil tanks to provide access for level gauging, sampling and overpressure/vacuum protection, all in one compact design.
Size: 8″ (200 mm)
Bolting: API 12
Pressure settings: 4, 6, 8, 10, 12, 16, 24 and 32 osig*
Vacuum settings: 0.4, 0.9 and 3.5 osig
Casting: aluminum (non-sparking)
Envelope gasket: HNBR, FKM or fluorosilicone
Vacuum diaphragm: HNBR, FKM, fluorosilicone or fluoropolymer
Leak rate: 1 SCFH air @ 90% of set pressure
Additional pressure settings are available.
| SIZE | |
|---|---|
| in | mm |
| 8 | 200 |
| WIDTH | |||
|---|---|---|---|
| A (Closed) | D (Open) | ||
| in | mm | in | mm |
| 14.95 | 379 | 20.25 | 514 |
| HEIGHT | |||
|---|---|---|---|
| B (Closed) | C (Open) | ||
| in | mm | in | mm |
| 7.45 | 189 | 15.25 | 387 |
| ANGLE | ASSEMBLY WEIGHT | |
|---|---|---|
| E (Open) | ||
| deg | lbs | kg |
| 109.5 | 13.8 | 6.26 |
Base Gasket:
GKT12TH08K302 = Non-Asbestos
GKT12TH087602 = FKM
GKT12TH087102 = PTFE
GKT12TH084402 = Black Neoprene
GKT12TH083502 = Buna-N
GKT12TH08CJ02 = FKM (Blue)
GKT12TH08BO02 = Fluorosilicone
Mounting Kit:
KS12THBS08P01 = Hex Nut and Bolt Set – Zinc Plated Steel
KS12THBS08P02 = Hex Nut and Bolt Set – 18-8 Stainless Steel
Flange Adapter:
ADP12TH080101 = Flange Adapter – 8” 150# ASME to 8” API 12 – Aluminum
ADP12TH082001 = Flange Adapter – 8” 150# ASME to 8” API 12 – Carbon Steel
ADP12TH082002 = Flange Adapter – 8” x 18” Oblong to 8” API 12 – Carbon Steel
ADP12TH082003 = Flange Adapter – 8” x 22” Oblong to 8” API 12 – Carbon Steel
Y Adapter:
ADP12TH080104 = Y Adapter – 8″ API 12 – Aluminum
Select your specifications below to generate a custom product number.
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Model #
Size
Body Material
Envelope Gasket
Vacuum Diaphragm
Spring Material
Pressure Setting
Vacuum Setting
Options
Model #:
Size:
Body Material:
Envelope Gasket:
Vacuum Diaphragm:
Spring Material:
Pressure Setting:
Vacuum Setting:
Options:
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Model L12-TL
Long Pan Thief Hatch
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Model L1200A
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View Vent to Atmosphere chevron_rightWe don’t manufacture until you order. Our production team employs the latest tools and techniques in agile manufacturing to fabricate your order to your specifications. After production and assembly, each product undergoes stringent quality inspections before leaving the production floor – we guarantee you’ll get exactly what you ordered.