Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: M [10 μin. (0.25 μm)], Ports: 3PWE [3 Ports (1-In; 2-Out; 3-In)], Connection 1: TW6 (3/8 Inch Tube Weld), Connection 2: TW6 (3/8 Inch Tube Weld), Connection 3: TW6 (3/8 Inch Tube Weld), Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: M [10 μin. (0.25 μm)], Ports: 2PWA (1-In; 2-Out), Connection 1: FV4 (1/4 Inch Face Seal, Female), Connection 2: TW6 (3/8 Inch Tube Weld), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not Applicable to All Other

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: M [10 μin. (0.25 μm)], Ports: 2PWA (1-In; 2-Out), Connection 1: TW6 (3/8 Inch Tube Weld), Connection 2: MV4 (1/4 Inch Face Seal, Male), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not Applicable to All Other

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: M [10 μin. (0.25 μm)], Ports: 2PW [2 Ports (1-In; 2-Out)], Connection 1: TW6 (3/8 Inch Tube Weld), Connection 2: MV6 (3/8 Inch Face Seal, Male), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not Applicable to All

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: 15 μin. (0.4 μm) Standard, Ports: 3PWG [3 Ports (1-In; 2-Out; 3-Out)], Connection 1: MV4 (1/4 Inch Face Seal, Male), Connection 2: TW4 (1/4 Inch Tube Weld), Connection 3: FV4 (1/4 Inch Face Seal, Female), Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: 15 μin. (0.4 μm) Standard, Ports: 3PWH [3 Ports (1-In; 2-Out; 3-Out)], Connection 1: MV4 (1/4 Inch Face Seal, Male), Connection 2: TW4 (1/4 Inch Tube Weld), Connection 3: FV4 (1/4 Inch Face Seal, Female), Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: M [10 μin. (0.25 μm)], Ports: 2PW [2 Ports (1-In; 2-Out)], Connection 1: FV6 (3/8 Inch Face Seal, Female), Connection 2: MV6 (3/8 Inch Face Seal, Male), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not Applicable

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: M [10 μin. (0.25 μm)], Ports: 2PW [2 Ports (1-In; 2-Out)], Connection 1: TW6 (3/8 Inch Tube Weld), Connection 2: TW6 (3/8 Inch Tube Weld), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 1.75 Inch (44.5mm), Seat Material: PCTFE (Standard)

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: X [5 μin. (0.13 μm)], Ports: 2PW [2 Ports (1-In; 2-Out)], Connection 1: FV4 (1/4 Inch Face Seal, Female), Connection 2: MV4 (1/4 Inch Face Seal, Male), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not Applicable

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: H (Hastelloy® C-22), Surface Finish: 15 μin. (0.4 μm) Standard, Ports: 2PW [2 Ports (1-In; 2-Out)], Connection 1: TW6 (3/8 Inch Tube Weld), Connection 2: TW6 (3/8 Inch Tube Weld), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not Applicable to All Other Connections

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: 15 μin. (0.4 μm) Standard, Ports: 2PW [2 Ports (1-In; 2-Out)], Connection 1: TW6 (3/8 Inch Tube Weld), Connection 2: TW6 (3/8 Inch Tube Weld), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not Applicable to All

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: M [10 μin. (0.25 μm)], Ports: 4PWN [4 Ports (1-In; 2-In; 3-Out; 4-Out)], Connection 1: FV4 (1/4 Inch Face Seal, Female), Connection 2: MV4 (1/4 Inch Face Seal, Male), Connection 3: FV4 (1/4 Inch Face Seal, Female), Connection 4: MV4 (1/4 Inch Face Seal, Male), Face to Face Dimensions

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: M [10 μin. (0.25 μm)], Ports: 4PWN [4 Ports (1-In; 2-In; 3-Out; 4-Out)], Connection 1: MV4 (1/4 Inch Face Seal, Male), Connection 2: MV4 (1/4 Inch Face Seal, Male), Connection 3: MV4 (1/4 Inch Face Seal, Male), Connection 4: MV4 (1/4 Inch Face Seal, Male), Face to Face Dimensions

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: M [10 μin. (0.25 μm)], Ports: 4PWN [4 Ports (1-In; 2-In; 3-Out; 4-Out)], Connection 1: TW4 (1/4 Inch Tube Weld), Connection 2: MV4 (1/4 Inch Face Seal, Male), Connection 3: TW4 (1/4 Inch Tube Weld), Connection 4: MV4 (1/4 Inch Face Seal, Male), Face to Face Dimensions: 2.12 Inch

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: 15 μin. (0.4 μm) Standard, Ports: 2PWC [2 Ports (1-In; 2-Out)], Connection 1: TW6 (3/8 Inch Tube Weld), Connection 2: TW6 (3/8 Inch Tube Weld), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not Applicable to All

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: 15 μin. (0.4 μm) Standard, Ports: 2PW [2 Ports (1-In; 2-Out)], Connection 1: MV4 (1/4 Inch Face Seal, Male), Connection 2: MV4 (1/4 Inch Face Seal, Male), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not Applicable

Model: 550 [Normally Closed (N.C.); 250 psig (1.7 MPa)], Material: S (316L SS Secondary Remelt), Surface Finish: M [10 μin. (0.25 μm)], Ports: 2PW [2 Ports (1-In; 2-Out)], Connection 1: MV6 (3/8 Inch Face Seal, Male), Connection 2: MV6 (3/8 Inch Face Seal, Male), Connection 3: No Port, Connection 4: No Port, Face to Face Dimensions: 2.12 Inch (53.8 mm) Standard for TW4; or Not Applicable

Yes, the old type (the AMG150 to 550) was discontinued in August 2009. The new type (the AMG150C to 550C) allows for modular connection and has an expanded range of options. The element for the new type is the same as that of the old type, and the element part number has not changed. The element (AMG-EL□□□) of the current product can be mounted as is.

Size: 25, Motor Mounting Position: U (Bottom Mounting), Stroke: 550

Size: 32, Motor Mounting Position: U (Bottom Mounting), Stroke: 550