D/A Logo
3-Valve Manifolds
D/A Products Safti-Fold Model Selector SF3TC, SF3T4C & SF3FC Outline Drawings Safti-Fold Design How to Order SF3TC, SF3T4C & SF3FC Previous Safti-Fold Model Next Safti-Fold Model
SF3TC Shown Here

SF3TC Schematic
  • Investment cast 316SS body bolts directly to transmitter to eliminate need for transmitter oval flanges
  • Valve assembly is process blowout proof
  • The packing controls both stem leakage and leakage between the manifold body and the valve.
  • Built-in zerk nut allows complete online flush-through relubrication
  • Over-torquing of valve handle in either direction is prevented
  • Ceramic ball (up to 8 times harder than 316SS) eliminates ball creasing and seat galling
  • Unit can withstand considerable mechanical and chemical abuse
  • Valve cannot be accidentally disassembled
  • Large (over 1/4") internal porting

The SF3[TC],[T4C],[FC] are investment cast 3-valve Transmount manifolds with flanged instrument connections. They bolt directly onto 2-1/8" and 2-1/4" center to center DP transmitters. On the process side, they can be supplied with threaded[TC], integral tube fitting [T4C], or flanged[FC] connections.

The SF3[TC],[T4C],[FC] can be mounted to a 2" pipe using the D/A Mounting Bracket option for easy installation and maintenance.

These units were designed to allow the use of a box end wrench on transmitter bolts.

Max Ratings:
6000psi @ 220°F
1500psi @ 450°F
6000psi @ 700°F
1500psi @ 1000°F
316SS body and wetted parts
Also available:
Nickel plated C.S.
Exotic materials: Hastelloy C, Monel, Alloy 20, etc.
Consult Factory
Design Codes:
ANSI B31.1, B16.5, NACE MR-01-75 (special order)
Material Codes:
Barstock, A479 - 316, A276-316;  Cast, ASTM-A743 CF3M, ASTM-A-351 CF3M, A 276-316.
Assurance of Satisfaction: When properly installed, D/A guarantees the SAFTI-FOLD® series of instrument manifolds and hand valves to be free from defective workmanship and material under normal use and service for a period of one year from the date of shipment.

Code  Safti-Fold, Transmount 3-valve manifold
SF3TC  Flanged (instrument) x 1/2" FNPT (process)
SF3T4C  Flanged (instrument) x Tube Fitting (process)
SF3FC  Flanged (instrument) x Flanged (process)
| Code  Seal
| T  Teflon
| G  Grafoil
| | Code  Material
| | SS  Stainless Steel, 316
| | | Code  Options
| | | BP  1/4" FNPT bottom purge connections
| | | EH  3" Extended Handles
| | | MB  Mounting Bracket for direct mounting to a 2" pipe
| | | LMB  Long Mounting Bracket
| | | ITV  Instrument Test Valve
| | | SB  Steam Block
| | | |  
Model Number


D/A Manufacturing Co., Inc.
Hwy 86 East or P.O. Box T
Tulia, TX  79088-0920 USA
Phone: (806)995-2316
FAX: (806)995-4601