Now we have 10 Sets 3-1/8" 3000PSI SSV with Pneumatice Diaphragm Actuator for sale, the technical data is as following, Please conact us for best ptice:

VALVES, SURFACE SAFETY, 3IN 3000PSI, CONSISTING OF PNEUMATIC DIAPHRAGM ACTUATOR MOUNTED AND TESTED.REVERSE ACTING VALVE WITH STRIM FOR STANDARD SERVICE:
SPRING RETURN, R-31 API FLANGE ENDS, 115PSI INSTRUMENT AIR IS DESIGNED TO REOPEN THE VALVE WITH FULL DIFFERENTIAL S3/1 RATIO.
MEET REQUIRMENT OF : API 6A, 20TH EDDITION, PSL1/2/3, MATERIAL CLASS AA/BB/DD/EE, TEMP U, PR1.

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