Model

• HA4A (113)
• HA4W (26)

Port Size

• 3/4" (20mm) (36)
• 1" (25mm) (21)
• 1-1/4" (32mm) (16)
• 1-1/2" (40mm) (11)
• 2" (50mm) (16)
• 2-1/2" (65mm) (12)
• 3" (80mm) (12)
• 4" (100mm) (8)
• 5" (125mm) (4)
• 6" (150mm) (3)

Reduced Port Plug

• Full Port (121)
• 25% Reduced (5)
• 50% Reduced (13)

Variation

• No Variation - Inlet Regulator (26)
• Differential (3)
• Differential Outlet with External Equalizer (1)
• Differential with Electric Wide-Opening (4)
• Electric Motor Compensated (1)
• Electric Shut-Off (14)
• Electric Wide-Opening (14)
• Electric Wide-Opening and Shut-Off (1)
• External Equalizer (2)
• Outlet (25)
• Outlet with Electric Shut-Off (18)
• Outlet with Electric Shut-Off and External Equalizer (6)
• Outlet with Electric Wide-Opening (5)
• Outlet with Electric Wide-Opening and Shut-Off (1)
• Outlet with External Equalizer (2)
• Reseating Relief (12)
• Reseating Relief with Electric Wide-Opening (4)

Explosion Proof

• Explosion Proof (4)
• Stadnard Coil (135)

Pilot Solenoid Opening

• Normally Closed (139)

Refrigerant Type

• All Other Refrigerants (114)
• CO2 (25)

Options

• 4-Bolt Flange Style (2)
• 3/4" SW Flange Connection (1)
• 1" SW Flange Connection (5)
• 1-1/4" SW Flange Connection (3)
• 2" SW Flange Connection (4)
• 2-1/2" SW Flange Connection (1)
• 3" BW Flange Connection (3)
• 4" BW Flange Connection (2)
• BW (7)