Pig Receiver Assembly

A method for operating a pig receiver, the method comprising:

• closing a gate valve of the pig receiver, wherein the pig receiver comprises:
• a pig receiver unit;
• a pig gate valve assembly disposed on the pig receiver unit, comprising:
• the gate valve;
• a rod, wherein the gate valve is attached to the rod at a longitudinal end of the gate valve;
• a gate housing, wherein the rod is disposed within the gate housing;
• a cylinder guide, wherein the cylinder guide extends longitudinally from the gate housing;
• a first actuator and a second actuator;
• and
• a contaminant removal system;
• opening a pressure equalization valve of the pig receiver;
• adjusting a pressure downstream of the gate valve;
• and
• equalizing the pressure downstream of the gate valve with a pressure upstream of the gate valve.

A method for operating a pig receiver, the method comprising:

• flowing a fluid to the pig receiver, wherein the pig receiver comprises:
• a pig receiver unit, wherein a bottom valve is disposed below the pig receiver unit;
• a sump, wherein the sump is disposed at a bottom portion of the pig receiver unit;
• a pig gate valve assembly disposed on the pig receiver unit, comprising:
• a gate valve;
• a rod, wherein the gate valve is attached to the rod at a longitudinal end of the gate valve;
• a gate housing, wherein the rod is disposed within the gate housing, wherein the gate housing comprises a gate sealing area;
• a cylinder guide, wherein the cylinder guide extends longitudinally from the gate housing;
• a first actuator and a second actuator;
• and
• a contaminant removal system;
• contacting a surface of the pig gate valve assembly with the fluid;
• flowing the fluid to the gate sealing area;
• and
• removing contaminants from the pig receiver unit.