Introduction

Block and Bleed Capability

When in the closed position the Calvary valve forms a tight seal on both
seats, allowing the valve body to be drained. For specific application please
consult factory.

Tight Mechanical Seal

Both upsteam and downstream are blocked off simultaneously. This mechanical
advantage is normally undisturbed by pressure gradient fluctuations
or vibrational reflux. The seal is both TFE-to-metal and metal-to-metal.

Smooth, continuous conduit

Virtual elimination of turbulence. Pressure gradient through valve
stays the same, relative to the pressure drop in an equal-length pipe.

Seat Face Protection

Seat life is greatly extended by engineering the seats to face outwards in
order to avoid contact with the flow medium and engage fully with the gate.
This protection is in both the fully open and fully closed positions.

Gate Centralizer

Valve diameters that are 6 inch or larger feature the leverlock gate centralizer,
which retains the gate- segment assembly in a neutral position during
opening and closing travel. However expansion of the assembly for seating,
in an open or closed position, is permitted.

Actuation

The Calvary 6D gate valve is furnished with either hand wheel or bevel gear operators, but they can readily be
adapted to fit a wide range of power operators if desired. Power operators can be installed in the field or at
the manufacturing facility.

Thermal Relief Options

The split gate design allows for excess body pressure to develop in the body cavities of closed valves, and usually
results from heating in the valves in liquid service. A thermal body cavity relief system can be provided to
relieve the excess body pressure upon request.

Actuation

The Calvary 6D gate valve is furnished with either hand wheel or bevel gear operators, but they can readily be
adapted to fit a wide range of power operators if desired. Power operators can be installed in the field or at
the manufacturing facility.

Thermal Relief Options

The split gate design allows for excess body pressure to develop in the body cavities of closed valves, and usually
results from heating in the valves in liquid service. A thermal body cavity relief system can be provided to
relieve the excess body pressure upon request.

HANDWHEEL OPERATED STYLE VALVE

GEAR OPERATED STYLE VALVE

Valve sizes and configuration availability shown below

HAND WHEEL OPERATED

SIZE (IN) 300 400 600 900 1500
2 X X X X X
3 X X X X X
4 X X X X X
6 X X X X
8 X X X X
10 X X X
x = Available as either hand wheel operated or gear
operated.
GEAR OPERATED

SIZE (IN) 300 400 600 900 1500
6 X
8 X X
10 X X X
12 X X X X X
14 X X X X X
16 X X X X X
20 X X X X X
24 X X X X X
30 X X X X X
36 X X X X X
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