Clamping "X" Position Movement On Platform (Code Inside)

Hello Is it Possible to Clamp "X" axis movement Position on These Codes? Or Can we add something else? It is just a platform and Player moves on the Z axis.

 Void Update()
 {  
 MoveVector = Vector3.zero;
                 //Touch Horizontal difference will be change the _horizontal value;      
                 if (Input.touchCount > 0)
                 {
                     touch = Input.GetTouch(0);
                     if (touch.phase == TouchPhase.Moved)
                     {
                         Pos = transform.position;
                         MoveVector.x = (Pos.x + touch.deltaPosition.x) * moveSideDelta;
                         if (touch.deltaPosition.x > touchDistanceDeltaToFace || touch.deltaPosition.x < -touchDistanceDeltaToFace)
                         {
                             Vector3 face = controller.velocity;
                             face.y = 0;
                             transform.forward = (Vector3.Lerp(transform.forward, face, Turn_speed));
                         }
                     }
                     if ((touch.phase == TouchPhase.Ended))
                     {
                         transform.forward = Vector3.forward;
                     }
                 }                
                 MoveVector.x = Mathf.Clamp(MoveVector.x, -3f, 3f);//I think This Clamps The Amount Of Moving Distance to Left and Right at a time.
                 MoveVector.z = PlayerSpeed;
                 controller.Move(MoveVector * Time.deltaTime);
 }