Port Size

• 3/4" (108)
• 1" (108)
• 1-1/4" (81)
• 1-1/2" (54)
• 2" (54)
• 2-1/2" (27)

Connection Type

• Butt Weld (162)
• Flanged (81)
• Less Flanges (81)
• Socket Weld (108)

Model

• Standard (48)
• Differential (48)
• Dual (48)
• Electric Shut-Off (48)
• Electric Wide-Opening (48)
• Outlet (48)
• Outlet With Shut-Off (48)
• Pneumatically Compensated (48)
• Reseating Relief (48)

Range

• Range A, 0-150 PSIG (144)
• Range B, 30-300 PSIG (144)
• Range V, 20"-130 PSIG (144)