·Pressure relief valve and blow down valve are flanged type globe valve, arranged in the upper and lower direction, can be discharged at any time or manual pressure relief, can be finished at any time;
·Impact handwheel can avoid the gear box in the field for long time exposure due to rust and other reasons stuck. The impact handwheel is not subject to this limitation, but also provides large torque, and can be easily operated by one person;
·Flexible graphite packing not only improves valve stem sealing
efficiency but also reduces maintenance frequency.