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Series-OP Orifice Plates

Introduction

Series OP, Orifice Plate is an accessory for HD Main Valve to see more accessory options please visit the HD Accessories Section.

Series-OP Orifice Plates

The Series OP Orifice Plate with its drilled orifice pattern is installed after the pressure regulating valve to smooth out turbulence caused by the pressure drop across the regulator. Typical noise reduction levels of 5-10 dBA; higher possible. Manufactured from SA-105 Carbon Steel, 304 SST, or 316 SST.

Model	Size	Type	Outside Dia.	Body Material
OP1-14-150	1"	150# FLG	4-1/4"	A105 CS
OP1-14-300	1"	300# FLG	4-7/8"	A105 CS
OP1-16-150	1 1/2"	150# FLG	5"	A105 CS
OP1-16-300	1 1/2"	300# FLG	6-1/8"	A105 CS
OP1-17-150	2"	150# FLG	6"	A105 CS
OP1-17-300	2"	300# FLG	6-1/2"	A105 CS
OP1-18-150	2 1/2"	150# FLG	7"	A105 CS
OP1-18-300	2 1/2"	300# FLG	7-1/2"	A105 CS
OP1-19-150	3"	150# FLG	7-1/2"	A105 CS
OP1-19-300	3"	300# FLG	8-1/4"	A105 CS
OP2-20-300	4"	300# FLG	10"	304 SST*
OP1-20-150	4"	150# FLG	9"	A105 CS
OP1-20-300	4"	300# FLG	10"	A105 CS
OP1-21-150	5"	150# FLG	10"	A105 CS
OP1-22-150	6"	150# FLG	11"	A105 CS
OP1-22-300	6"	300# FLG	12-1/2"	A105 CS
OP1-23-150	8"	150# FLG	13-1/2"	A105 CS
OP1-23-300	8"	300# FLG	15"	A105 CS
OP1-24-150	10"	150# FLG	16"	A105 CS
OP1-24-300	10"	300# FLG	17-1/2"	A105 CS
OP1-25-150	12"	150# FLG	19"	A105 CS
OP1-25-300	12"	300# FLG	20-1/2"	A105 CS
OP1-26-300	14"	300# FLG	23"	A105 CS
OP2-14-150	1"	150# FLG	4-1/4"	304 SST*
OP2-14-300	1"	300# FLG	4-7/8"	304 SST*
OP2-16-150	1 1/2"	150# FLG	5"	304 SST*
OP2-16-300	1 1/2"	300# FLG	6-1/8"	304 SST*
OP2-17-150	2"	150# FLG	6"	304 SST*
OP2-17-300	2"	300# FLG	6-1/2"	304 SST*
OP2-18-150	2 1/2"	150# FLG	7"	304 SST*
OP2-18-300	2 1/2"	300# FLG	7-1/2"	304 SST*
OP2-19-150	3"	150# FLG	7-1/2"	304 SST*
OP2-19-300	3"	300# FLG	8-1/4"	304 SST*
OP2-20-150	4"	150# FLG	9"	304 SST*
OP2-20-300	4"	300# FLG	10"	304 SST*
OP2-21-150	5"	150# FLG	10"	304 SST*
OP2-21-300	5"	300# FLG	11"	304 SST*
OP2-22-150	6"	150# FLG	11"	304 SST*
OP2-22-300	6"	300# FLG	12-1/2"	304 SST*
OP2-23-300	8"	300# FLG	15"	304 SST*
OP2-24-150	10"	150# FLG	16"	304 SST*
OP2-24-300	10"	300# FLG	17-1/2"	304 SST*
OP1-23-300	8"	300# FLG	15"	A105 CS
OP2-25-150	12"	150# FLG	19"	304 SST*
OP2-25-300	12"	300# FLG	20-1/2"	304 SST*
OP3-14-150	1"	150# FLG	4-1/4"	316 SST*
OP3-14-300	1"	300# FLG	4-7/8"	316 SST*
OP3-16-150	1 1/2"	150# FLG	5"	316 SST*
OP3-16-300	1 1/2"	300# FLG	6-1/8"	316 SST*
OP3-17-150	2"	150# FLG	6"	316 SST*
OP3-17-300	2"	300# FLG	6-1/2"	316 SST*
OP3-18-150	2 1/2"	150# FLG	7"	316 SST*
OP3-18-300	2 1/2"	300# FLG	7-1/2"	316 SST*
OP3-19-150	3"	150# FLG	7-1/2"	316 SST*
OP3-19-300	3"	300# FLG	8-1/4"	316 SST*
OP3-20-150	4"	150# FLG	9"	316 SST*
OP3-20-300	4"	300# FLG	10"	316 SST*
OP3-21-150	5"	150# FLG	10"	316 SST*
OP3-21-300	5"	300# FLG	11"	316 SST*
OP3-22-150	6"	150# FLG	11"	316 SST*
OP3-22-300	6"	300# FLG	12-1/2"	316 SST*
OP3-23-150	8"	150# FLG	13-1/2"	316 SST*
OP3-23-300	8"	300# FLG	15"	316 SST*
OP3-24-150	10"	150# FLG	16"	316 SST*
OP3-24-300	10"	300# FLG	17-1/2"	316 SST*
OP3-25-150	12"	150# FLG	19"	316 SST*
OP3-25-300	12"	300# FLG	20-1/2"	316 SST*
OP3-26-150	14"	150# FLG	21"	316 SST*
OP2-18-150	2 1/2"	150# FLG	7"	304 SST*

Downloads

Catalog Spec Sheet (pdf)

Product Overview

Selection / Sizing / Capacities

Selection: Series OP orifice plates are custom engineered to maximize noise attenuation and reduce dbA to the lowest achievable value. The number and diameter of holes will be determined based on application conditions, and the plate diameter will typically be equal to the recommended downstream pipe size.

Therefore, the following information is required for selection:
• Inlet (Supply) Pressure to the HD/HSP Regulator*
• Outlet (Downstream) Pressure of the HD/HSP Regulator*
• Steam Flow Rate (lb/hr)

Notes:	1)	Other sizes and flange connections available; Consult Factory.
	2)	Orifice Plates may be available for other valves; Consult Factory.

Dimension and Weights