PEAK 1
TEFLON COATING
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   jayco super seal    great flow characteristics  •  all high tensile strength aluminum lid and base  •  designed for easy maintenance  •  locking for security    Dependable stock levels at our factory  
      The purpose of the thief hatch is to work in tandem with the vent valve to minimize the escape of light ends of crude in lease storage tanks by maintaining a pressure on the tank.  a vacuum relief function is also standard to prevent a suction or draw down from collapsing the tank.  the thief hatch permits access to the contents of the tank for sampling and gauging.  the vent valve should be set to vent pressure before the thief hatch.      
    jayco thief hatches are designed for optimum performance and easy cleaning and maintenance, and are available in 8 inch round and 20 inch long pan, with standard settings of 4.0 ounce pressure and 0.4 ounce vacuum with optional pressure springs for 2, 6, 8, 12, and 16 ounce settings.  a base gasket is standard with each hatch.

JAYCO THIEF HATCH - PEAK 1

  • BASE AND LID SIZE: NOMINAL 8″ ROUND
  • BOLT PATTERN: 16 HOLES AT 10 3/8″ CIRCLE (API)
  • CONSTRUCTION: ALL TEFLON COATED ALUMINUM CASTINGS
  • SYSTEM OPERATIONS: SPRING LOADED PRESSURE AND VACUUM
  • STANDARD SETTINGS: 4 OZ. PRESSURE 0.4 OZ. VACUUM
  • BASE GASKET: BLACK VITON INCLUDED
  • APPROXIMATE SHIPPING WEIGHT: 12#

THE JAYCO PEAK 1 THIEF HATCH IS DESIGNED WITH OUR NEW BLUE VITON WRAP-A-ROUND PRESSURE GASKET FOR OUR BEST DURABILITY AND SEALING.  THE PEAK 1 COMES COMPLETE WITH VITON GASKETS AND STAINLESS STEEL PARTS.  THE LID, BASE, AND INTERNAL PLUNGER ARE TEFLON COATED MAKING THIS HATCH SUITABLE FOR DEMANDING ENVIRONMENTS.

JAYCO THIEF HATCH - JT-8.1

  • BASE AND LID SIZE: NOMINAL 8″ ROUND
  • BOLT PATTERN: 16 HOLES AT 10 3/8″ CIRCLE (API)
  • CONSTRUCTION: ALL ALUMINUM
  • SYSTEM OPERATIONS: SPRING LOADED PRESSURE AND VACUUM
  • STANDARD SETTINGS: 4 OZ. PRESSURE 0.4 OZ. VACUUM
  • BASE GASKET: INCLUDED
  • APPROXIMATE SHIPPING WEIGHT: 12#

The jayco JT-8.1 thief hatch is designed for greater containment of vapors in an age of increased stewardship for our environment.  The standard gasket material is supreme65, a high grade of Buna n.  also available WITH black viton OR wrap-a-round blue viton.*

JAYCO THIEF HATCH - JT-20.1

  • BASE AND LID SIZE: NOMINAL 8″ ROUND WITH 20″ LONG PAN
  • BOLT PATTERN: 16 HOLES AT 10 3/8″ CIRCLE (API)
  • CONSTRUCTION: ALL ALUMINUM
  • SYSTEM OPERATIONS: SPRING LOADED PRESSURE AND VACUUM
  • STANDARD SETTINGS: 4 OZ. PRESSURE 0.4 OZ. VACUUM
  • BASE GASKET: INCLUDED
  • APPROXIMATE SHIPPING WEIGHT: 18#

The jayco jt-20.1 has the same 8” opening as the jt-8.1 with the same plunger and gasket offering.  The JT-20.1 features a 20” oblong drip pan to contain drippings and gives the operator a workspace for tools.