Bulletin 71.7:167D
2
1. The pressure/temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded.
2. Product complies with the material requirements of NACE MR0175 or MR0103. Environmental limits may apply.
Speci cations
Available Con gurations
Types 167D and 167DS: Two-way
switching valves
Types 167DA and 167DAS: Three-way
switching valves
Body Size, Inlet, and Outlet Connection Style
Ports A and C: 1/4 or 1/2 NPT
Vent and Control Pressure Connections
(Port D) and Port B: 1/4 NPT
Construction Materials
See Table 4
Maximum Operating Inlet Pressure
(1)
Types 167D and 167DS: 400 psig / 27,6 bar
Types 167DA and 167DAS: 125 psig / 8,6 bar
Types 167DA and 167DAS (NACE): 100 psig / 6,9 bar
Set Pressure Ranges
See Tables 1 and 2
Maximum Diaphragm Pressure
(1)
150 psi / 10,3 bar over outlet pressure setting up
to a maximum of 250 psi / 17,2 bar
Flow and Sizing Coef cients
See Table 3
Spring Case Vent Location
Aligned with inlet standard, other positions optional
Temperature Capabilities
(1)
Nitrile (NBR)
Standard Service (Types 167D and 167DA only):
-20° to 180°F / -29° to 82°C
Low Temperature Service (Types 167D and 167DA
only) and Standard Service (Types 167DS and
167DAS only): -40° to 180°F / -40 ° to 82°C
Fluorocarbon (FKM)
High Temperature Service: 0° to 300°F /
-18° to 149°C
Approximate Weights
Types 167D and 167DA: 1.2 pounds / 0,5 kg
Types 167DS and 167DAS: 2.8 pounds / 1 kg
Options
Types 167D and 167DA
• Handwheel adjusting screw
• Fluorocarbon (FKM) diaphragm, soft seat,
and O-rings
• Stainless steel valve stem and plug. Includes
stainless steel seat.
• 1-hole panel mount with handwheel adjusting
screw and 1/4 NPT tap spring case
• 3-hole panel mount bonnet with handwheel
adjusting screw and 1/4 NPT spring case
• 1/4 NPT tapped vent spring case
• 1/4 NPT tapped vent and closing cap
• Adjusting screw with locknut and a lock wire to
one fl ange bolt (For Type 167D only)
• Panel mounting bracket. Inlcudes 1/4 NPT
spring case, standard adjusting screw, nut,
and bracket.
• Yoke mounting bracket. Includes 1/4 NPT spring
case, standard adjusting screw, nut, fasteners,
and bracket.
• Size 30-70 casing mounting bracket. Includes
1/4 NPT spring case, standard adjusting screw,
nut, fasteners, and bracket
• NACE MR0175 or NACE MR0103 construction
(2)
Types 167DS and 167DAS
• Handwheel adjusting screw
• Fluorocarbon (FKM) diaphragm, soft seat,
and O-rings
• 1-hole panel mount with handwheel adjusting
screw and 1/4 NPT tap spring case
• Panel mounting bracket. Inlcudes 1/4 NPT
spring case, standard adjusting screw, nut,
and bracket.
• Yoke mounting bracket. Includes 1/4 NPT spring
case, standard adjusting screw, nut, fasteners,
and bracket.
• Size 30-70 casing mounting bracket. Includes
nut, fasteners, and bracket.
(16 pages)
(28 pages)
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