Bulletin 71.1:67D April 2012 67D Series Pressure Reducing Regulators P1183 P1182 TYPE 67D OR 67DR REGULATOR TYPE 67DF OR 67DFR FILTERED REGULATOR Figure 1.  67D Series Pressure Reducing Regulators   •  Optional Smart Bleed™      Construction   •  Optional Stainless       Steel Construction   •  Compact and Light Weight   •  Easy Maintenance   •  Optional Integral Filter   •  Optional Internal Relief Valve   •  Rugged Construction D103152X012   •  No Air Loss www.fisherregulators.com  

Bulletin 71.1:67D Introduction The 67D Series regulators are typically used to deliver constant reduced pressure of gaseous fluids to pilot-operated controllers and other pneumatic instrumentation. As shown in the Available Configurations table, an assortment of regulators is available to meet diverse flow requirements. Features   •  Compact—The 67D Series regulators are   engineered for outstanding performance in a   compact, lightweight package.   •  Smart Bleed™—Opens to exhaust downstream pressure when inlet pressure drops below outlet pressure. Recommended for dead-end service.   •  Pilot...

Bulletin 71.1:67D Specifications Available Configurations Type 67D: Direct-operated regulator with aluminum body and without internal relief Type 67DR: Aluminum body with internal relief Type 67DS: Stainless steel body without internal relief Type 67DSR: Stainless steel body with internal relief Type 67DF: Aluminum body with filter and without internal relief Type 67DFR: Aluminum body with filter and internal relief Type 67DFS: Stainless steel body with filter and without internal relief Type 67DFSR: Stainless steel body with filter and internal relief See also Table 1 Body Size, Inlet and Outlet...

Table 1. Available Configurations Table 2. Outlet Pressure Ranges and Control Spring Data Table 3. Construction Materials Inconel® is a mark owned by Special Metals Corporation.

Type XXXX Bulletin 71.1:67D TYPE 67DF OR 67DFS TYPE 67D OR 67DS M1153 M1154 INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE TYPE 67DR OR 67DSR TYPE 67DFR OR 67DFSR SMART BLEED™ OPTION FOR  TYPE 67DFR OR 67DFSR Figure 2.  67D Series Operational Schematics Principle of Operation (Figure 2) INLET PRESSURE OUTLET PRESSURE Downstream pressure is registered internally on the lower side of ATMOSPHERIC PRESSURE the diaphragm. When the downstream pressure is at or above the set pressure,LOADING PRESSURE the valve plug is held against the orifice and INTERMEDIATE PRESSURE there is no flow through the...

Bulletin 71.1:67D Overpressure Protection Note The 67D Series regulators have maximum outlet pressure ratings that are lower than their maximum inlet pressure ratings. A pressure-relieving or pressure-limiting device is needed if inlet pressure can exceed the maximum outlet pressure rating. Types 67DR, 67DSR, 67DFR, and 67DFSR regulators have a low capacity internal relief valve for minor seat leakage only. Other overpressure protection must be provided if the maximum inlet pressure can exceed the maximum pressure rating of the downstream equipment or exceeds maximum outlet pressure rating of...

Table 4. 67D Series Flow Capacities

Table 4. 67D Series Flow Capacities (continued) Ordering Information When ordering, complete the Ordering Guide on pages 11 and 12. Refer to the Specifications section on page 3. Review the description to the right of each specification and the information in each referenced table or figure. Specify your choice whenever a selection is offered.

SIDE OUTLET SIDE OUTLET INLET CONNECTION - SIDE OUTLET SIDE OUTLET INLET CONNECTION OUTLET CONNECTION STANDARD DIMENSIONS FOR GAUGE OPTION STANDARD DIMENSIONS

SIDE OUTLET INLET CONNECTION SIDE OUTLET OUTLET CONNECTION MOUNTING HOLES DIAMETER BOLTS SIDE OUTLET -SIDE OUTLET INLET CONNECTION OUTLET CONNECTION MOUNTING HOLES DIAMETER BOLTS STANDARD DIMENSIONS FOR GAUGE OPTION STANDARD DIMENSIONS

Bulletin 71.1:67D Ordering Guide Type (Select One)   67D (aluminum without internal relief)***   67DR (aluminum with internal relief)***   67DS (stainless steel without internal relief)***   67DSR (stainless steel with internal relief)***   67DF (aluminum with filter and without internal relief)***   67DFR (aluminum with filter and internal relief)***   67DFS (stainless steel with filter and without internal relief)***   67DFSR (stainless steel with filter and internal relief)*** Filter Material (Select One)   Polyethylene (5 microns) (standard)***   Glass (5 microns)***   Polyvinylidene (PVDF)...

Ordering Guide (continued) NACE International MR0175 Construction (Optional)!1) □ Yes (not available with gauge)** NACE International MR0103 Construction (Optional) □ Yes (not available with gauge)** Replacement Parts Kit (Optional) □ Yes, send one replacement parts kit to match this order. 1. Product complies with the material requirements of NACE International MR0175 Environmental limits may apply Specification Worksheet Application (Please designate units): Line Size_ Gas Type and Specific Gravity_ Does the Application Require Overpressure Protection? □ Relief Valve □ Monitor Regulator Is...