D/A Manufacturing ZM6 Zeroing Manifold

ZM6
Zeroing Manifold®

Typical Installation	Automatic fool-proof zeroing Mounts between the transmitter and oval flanges to become an integral part of the transmitter Large, 1/4" straight-thru roddable ports Unique bonnetless tapered plug design Adjustable packing nut stops interport and stem leakage No metal to metal contact Barstock construction Bubble tight seals Directional arrowhead handle All parts replaceable in-line Compact-only 1-1/4" thick
The patented D/A MULTIMATIC Service, Block and Zeroing manifold offers a high degree of sophistication for those processes which require frequent zero check, instrument isolation, field recalibration or process line blowdown. Rather than manipulating a cluster of independent needle valves, the MULTIMATIC utilizes two 3-way valves working together to provide all the functions of a bulky 7-valve system. Since all the porting and sequencing is properly interlocked, the service technician easily and positively selects the desired function by switching the two handles to the permanently marked positions. This unique "dial-a-function" method drastically reduces the costly errors of improper operation and confusion inherent in multi-handled manifolding systems. The D/A MULTIMATIC - The Ultimate in Convenience, Serviceability and Economy in Flow Transmitter Manifolding.
Operation
	With valve handle in the NORMAL position, the ZM6 is in the service mode with both process inlets open and the equalizing port blocked. By dialing the Zeroing Valve handle to the ZERO position, the ZM6 is automatically switched to the zeroing mode which completely and properly prepares the transmitter for zeroing by (1)First blocking one inlet impulse line and (2)then operating the equalizing port which bypasses the blocked inlet to equalize the P cell at the process pressure. Because it basically operates like a 3-way valve, this forced zeroing sequence provides fool-proof operation and safety. After correcting for zero offset, the transmitter is returned to service by simply redialing the handle to the NORMAL position, which again, correctly sequences back to the service mode by closing the equalizer first then reopening the blocked inlet.
Specifications
Max Ratings: Teflon: 6000psi @ -65ºF to 150ºF 2500psi @ 220ºF Ryton: 6000psi @ 220ºF 2500psi @ 520ºF Connections: Flanged instrument x Flanged process 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.	Materials of Construction: Body: 316SS or nickel plated C.S. Wetted Plug: 316SS Plug Liner: Teflon or Ryton reinforced Teflon Face Seals: Ryton reinforced Teflon Non-Wetted Trim: 303SS Handle: Cast aluminum arrowhead - PVC coated Exotic materials: Hastelloy C, Monel, Alloy 20, etc. consult factory.

All units are supplied with 4 transmitter mounting bolts and 2 face seals.
Assurance of Satisfaction: When properly installed, D/A guarantees the ZM6 to be free from defective workmanship and material under normal use and service for a period of one year from date of shipment.

Code	Dial-A-Function, Transmount Zeroing Manifold®

ZM6	Flanged (instrument) x Flanged (process)
\|	Code	Plug Liner
\|	T	Teflon
\|	R	Ryton reinforced Teflon
\|	\|	Code	Body
\|	\|	S	Stainless Steel, 316
\|	\|	C	Nickel Plated C.S.
\|	\|	\|	Code	Wetted Plug
\|	\|	\|	S	Stainless Steel, 316
\|	\|	\|	\|	Code	Options
\|	\|	\|	\|	EH	3" extended arrowhead handles
\|	\|	\|	\|	\|
					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