4058 / 4458 4-way valves

Features

● BALANCED FORCE DESIGN -PRESSURE CAN BE APPLIED TO ANY PORT

● CENTER DEAD SPOT - NO PORT OVERLAP

● ARRANGED FOR PANEL OR BRACKET MOUNTING

● AVAILABLE IN ALUMINUM OR 316 STAINLESS STEEL

Applications

● HYDRAULIC FLUID CONTROL

● ACTUATOR CONTROL

● PNEUMATIC PANEL SYSTEMS

● SAFETY CONTROL SYSTEMS

Operation

AMOT Model 4058 or 4458 4-Way Valves were developed for use in manual and automatic hydraulic or pneumatic control systems. They offer versatility in operating requirements and allowable pressure limits. For a 1/4" size control valve, they offer exceptional flow capacity.

These valves are suitable for use on clean air, natural gas, L.P. gases, petroleum-base lubricants and hydraulic oils as well as many other fluids.

Each valve is carefully assembled, tested, and inspected to ensure that high quality standards are met. Valves are made from precision cast and machined aluminum or stainless steel parts. The unique porting arrangement eliminates seal ring cutting, and permits pressure inlet at any port without danger of seal ³blow out². Standard construction permits valve pressures to 125 psi.

Certain of these valves are completely unique in the industry. For example, the 4058 or 4458 Type CP has a manual reset latch which automatically drops out on introduction of pilot pressure, and permits return stroke on loss of pilot pressure.

These valves make use of AMOT's patented ³Tad-Pole² seal which provides for lower friction and longer cycle life than conventional O-rings. (U.S. Pat. No. 3,926,444)

Specifications

Body Material
4058 .......... Precision Cast Aluminum
4458 .................... 316 Stainless Steel

Standard Spool Material.............. Glass Reinforced Ryton
Standard Seal Material ............................................. Viton
Maximum Temperature .............................. 250°F (120°C)
Flow Coefficient........ (equivalent to 9/32 dia. port) C v =1.2

Maximum Pressure at Ports 1, 2, 3, 4, 5*125 psi (860 kPa)
Maximum Pressure at Ports A or B .... 150 psi (1034 kPa)
Maximum Pressure at Port C (Type CT)**125 psi (860 kPa)

Net Weight
4058 ....... 0.8 to 2.2 lbs (0.4 to 1.0 kg)
4458 ....... 2.3 to 6.3 lbs (1.0 to 2.9 kg)

* 150 psi (1034 kPa) if a slight increase in operating force and pressures is acceptable.
** 350 psi (2411 kPa) if a suitable orifice is used to prevent damage to valve components from sudden application of pressure.