Spirax Sarco Control Valve BCV71

Observe the 'Safety information' in Section 1

Apply PTFE based grease to mating parts if application permits

Ensure groove is clean and undamaged

Clean and examine components for damage or deterioration

Observe the 'Safety information' in Section 1

Stainless Steel Valve Handling Precautions

Apply a light smear of PTFE based grease to mating parts before reassembly if application permits

Lift out the seat retaining cage (5)

Remove and discard the seat back gasket (7)

Observe the 'Safety information' in Section 1

Inspect the valve for wear and tear, replacing any worn or damaged parts

Apply a light smear of PTFE based grease to mating parts before reassembly if application permits

Replace high temperature graphite packed seals to prevent premature failure

Replace all soft seals and gaskets whenever the valve is disassembled

Was the valve body left in the line during maintenance?

Observe the 'Safety information' in Section 1

Take care with stainless steel to avoid galling or cold welding

Apply PTFE based grease to mating parts if application permits

Ensure valve is depressurised and clear of media

Isolate valve both upstream and downstream

Unscrew the stuffing box nuts (18)