- Design- Confirming to ISA RP 3.2, DN 1952, BS 1042, ISO-5167
- Orifice Bore- Confirming to ISO 5167 / BS 1042 / RW Miller / L. K. SPINK / AGE – 3
- Accuracy - Within /- 1 %
- VENT / DRAIN - Vent OR Drain holes are provided as per customer’s requirement. Not drilled for Orifice Bore smaller than 25.4 mm.