Ashcroft Options User Manual

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259
PRESSURE INSTRUMENTS
PROCESS GAUGES
ACCESSORIES & OPTIONS
INDUSTRIAL GAUGES
STAINLESS STEEL CASE GAUGES
TEST INSTRUMENTS
DIAPHRAGM SEALS/INSTRUMENT ISOLATORS
COMMERCIAL GAUGES
SPECIAL APPLICATION COMMERCIAL GAUGES
PRESSURE TRANSDUCERS/TRANSMITTERS
TEMPERATURE INSTRUMENTS
ACCESSORIES AND OPTIONS
Throttle Screws ........................................... 261
Pulsation Dampener .................................... 261
Pressure Snubber........................................ 261
Steel Needle Valve ....................................... 262
Siphons ....................................................... 262
Chemiquip Valve Snubber ........................... 263
Chemiquip Limiting Valve ........................... 263
Diaphragm Seals ......................................... 263
Electric Warning Contacts ........................... 264
Conversion Kit ............................................. 264
1
4
/2˝ Ring Wrench, Type A-1285 ................... 265
6˝ Ring Wrench, Type A-1286 ...................... 265
1
2
/2˝ & 31/2˝ Type 1009 Duralife Tools .......... 265
Cone Tool, Type A-1287 ............................... 266
Tool Kit, Type 1105T ..................................... 266
Hand Jack Set, Type 3220 ........................... 266
Cocks, 1092 Tea Handle .............................. 266
Cocks, 1094 Lever Handle Union ................ 266
Cocks, 1095 Lever Handle ........................... 266
Test Gauge Carrying Case 2005 .................. 266
Options .................................................267-268
BIMETAL THERMOMETERS
DIRECT-READING THERMOMETERS
HANDHELD THERMOMETERS
REMOTE-READING GAS THERMOMETERS
REMOTE-READING VAPOR THERMOMETERS
DIGITAL THERMOMETERS
TEMPERATURE REGULATORS
THERMOWELLS
PRESSURE/TEMPERATURE SWITCHES
PRESSURE SWITCHES
TEMPERATURE SWITCHES
ACCESSORIES & OPTIONS
Consult factory for guidance in product selection Phone (203) 378-8281 or visit our web site at www.ashcroft.com
APPLICATION DATA
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260
Consult factory for guidance in product selection Phone (203) 378-8281 or visit our web site at
www.ashcroft.com
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261
Ashcroft® Accessories
Throttling Devices
A throttling device should be used when a pressure gauge is subjected to rapid pressure fluctuations, which make the gauge difficult to read because of rapid pointer movement. Such a device reduces pressure impact, slows the speed and range of pointer movement, and prolongs gauge life. Throttling effect is obtained by installing a restricting orifice between the gauge socket connection and the Bourdon tube. Severe service applications are characterized by the presence of significant levels of pressure pulsation and/or vibration. Gauges
THROTTLE SCREWS
The simplest means of providing a restriction in the socket, a throttle screw or throttle plug, should be ordered with the gauge. Threaded or pressed into an instrument socket, the throttle screw orifice selected is based on the viscosity of the pressure fluid, rapidity of pressure fluctuations, and the amount of damp­ening effect desired. A smaller orifice should be used for low viscosities, high frequencies, high
pressure and reduced pointer ampli­tude. To accommodate these variables, throttle screws are available in these sizes: 0.0135, 0.020, 0.031, 0.040, and
0.070 inches, in brass and stainless steel. When orifice size or service condi­tion is not specified, a 0.020-inch orifice will be supplied on Duragauge gauges and a 0.0135, on 25-35 1009 and 63 and 100mm 1008S.
PULSATION DAMPENER
Threads onto a gauge socket and pro­vides restriction by means of a moving pin, which may be placed in either of five different sized holes, and thus allows the user to vary the amount of dampening to suit requirements. The pulsating pressure moves the pin up and down, providing a self-cleaning action. Dampeners are shipped with a pin in the “middle” hole, and may be used in either a vertical or horizontal po­sition. Maximum pressure is 5000 psi.
Type NPT Number Conn. (oz.)
25-1106B 1⁄4 Brass 4
50-1106B 1⁄2 Brass 8 25-1106D 1⁄4 Steel* 4 50-1106D 1⁄2 Steel* 8
25-1106S 1⁄4 Stainless steel 4
50-1106S 1⁄2 Stainless steel 8
* Internal parts are stainless steel.
should be protected from severe pressure pulsation by the inclusion of a dampener such as a throttle plug/screw or porous metal snubber. If the pulsation is extreme, a liquid-filled gauge, with dampener, should be used. A liquid-filled gauge will also last significantly longer than a comparable dry gauge when vibration is present. If the vibration levels are extreme, the only solution may be to remotely mount the gauge away from the source of vibration. In that case capillary tubing may be used to connect the gauge to the pressure source.
Throttle screw
®
pressure
Weight
Material
PRESSURE SNUBBER
Type NPT
Number Conn. Housing Filter Disc Rating
25-1112B 1⁄4 50-1112B 25-1112S 1⁄4 50-1112S 25-1112M 50-1112M
Porosity
Opening (Inches) Diff. Press.
D 0.005 6.5
E 0.0025 3.0
G 0.0008 1.1
HX 0.0006 0.4
Material
1
2
1
2
1
4
1
2
Max Pore Cap. CFH at 1 psi
Brass
303
stainless steel stainless steel
R Monel Monel 15,000
stainless steel
Max psi
316
10,000
316
15,000
For use with
Oil
(50 to 500 S.S.U.)
Water & Light Oils
(Under 50 S.S.U.)
Air, Steam and Gases
Mercury
Manomometers
Consult factory for guidance in product selection Phone (203) 378-8281 or visit our web site at www.ashcroft.com
Used for dampening and filter­ing, the snubber has a metal disc available in four standard grades of porosity. The one best suited for the application can be selected from the chart, using the same guidelines as for throttle screws. Due to the large filter area, the snubber has less tendency to clog than orifice­type devices. All-metal construc­tion permits the snubber to be washed in a variety of common solvents.
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263262
STEEL NEEDLE VALVE
The steel needle valve is an economical, adjustable throttling device for any severe gauge application. It provides the most practical means for varying the orifice to determine the exact orifice for any specific service condition. The valve has an internal seat and is of bar stock construction.
A NPT Conn.
1
4 21⁄8
1
2 21⁄4 11⁄4 21⁄2 31⁄16 33⁄16 21
Type Numbers Pressure Ratings NPT
Conn.
Type Valves 100°F 550°F 850°F 1000°F
Carbon steel
1
4 25-7001L with
12-14% chrome
1
2 50-7001L Stainless steel
stem
1
4 25-7004L
1
2 50-7004L
B C D – min. E F Weight oz.
Lock Bonnet
Material Noncorrosive Service (psi)
316 stainless steel
SIPHONS
In order to prevent live steam from entering a pressure gauge
Dimension – Inches
7
8 21⁄2 3 31⁄8 8
10,000 7735 — —
C-Max
7000 4500 3895 3535
condensing hot vapors (not just steam) are present.
D
B-Max
Bourdon tube, a siphon filled with water should be installed between the gauge and the process line. If freezing of the condensate in the loop of a siphon is a possibility, a diaphragm seal should be used to isolate the gauge from the process steam. Also use siphons whenever
Type NPT Number Conn.
25-1098 I
25-1098 B
25-1098 S
Grade A from –20° to 400°F
50-1098 S
Grade A from –20° to 400°F
50-1098 SD
Grade A from –20° to 400°F
50-1098 CD
Grade T 22 from –20° to 400°F
50-1098 NS
steel, Type 316 3981 psi from –20 to 100°F
50-1098 ND
steel, Type 316 5840 psi from –20° to 100°F
25-1100 A
25-1100 I
25-1100 IL
25-1100 IN
25-1100 B
25-1100 BL
1
4 Iron 500 psi @ 400°F
1
4 Brass 250 psi @ 400°F
ASTM A-106 seamless steel, 338 psi @ 1000° to 3360 psi
1
4
ASTM A-106 seamless steel, 333 psi @ 1000°F to 3000 psi
1
2
ASTM A-106 seamless steel, 420 psi @ 1000°F to 3740 psi
1
2
ASTM A-213 seamless steel, 1048 psi @ 1200°F to 9550 psi
1
2
Seamless stainless 294 psi @ 1500°F to
1
2
Seamless stainless 336 psi @ 1500°F
1
2
1
4 Stainless steel
1
4 Iron – 63⁄8˝ Long
1
4 Iron – 8˝ Long
1
4 Iron – Angle
1
4 Brass – 53⁄8˝ Long
1
4 Brass – 8˝ Long
Material Capacity
• Pig Tail Siphon–Number 1100 Series,
1
4˝ sizes: to 500 psi and
400°F.
• Coil Pipe Siphon –Number 1098 Series,
1
4,˝ 1⁄2˝ sizes: to 9550 psi and
400°F.
500 psi @ 400°F
250 psi @ 400°F
Ashcroft® Accessories
E-CLOSED F-OPEN
A Pipe Conn.
Type 1100
Type 1098
CHEMIQUIP PRESSURE LIMITING VALVE SNUBBER
Type Number Conn. Material Available Ranges
500-1000 psi 50-2550D
(2) Specify porosity designation. (3) Use code XFS for factory setting. (4) Meets NACE MR01-75 requirements.
CHEMIQUIP PRESSURE LIMITING VALVE
Type Number Conn. Material Available Ranges
(1) Use code XFS for factory setting.
Porosity Type of Service Designations
High viscous fluids (over 500 S.S.U.) C Oil (225-500 S.S.U.) D Water and light oils (30-225 S.S.U.) E Vapor and low viscosity fluids (Below 30 S.S.U.) F Air or other gases G Extreme gas pulsations HX
(1)
25-255B
25-255S
100-800 psi L
25-5460
2500-10,000 psi N
50-5500
1
(1)
4 NPTF Brass
1
4 NPTF 303 SS
1
(3)
2 NPTF 316 SS 1000-3000 psi
1
4 NPTF 303 SS
1
2 NPTF 303 SS
10-150 psi
150-500 psi
(4)
800-2500 psi M
10,000-18,000 psi O
(1)
Style
(2)
Ashcroft® Accessories
Assures positive, repeatable performance of the instrument by protecting against surges and pulsations. Automatically shuts off when overpressure occurs and is restored when pressure falls below preset values.
Protects pressure instruments against surges and pulsations. Provides automatic posi­tive protection and accurate, repeatable performance. Automatic pressure shut-off. Built-in snubber enhances instrument, protecting performance.
DIAPHRAGM SEALS
Designed for use with pressure gauges or switches or transmitters on process applications where:
• Process element materials capable of withstanding corrosive effects of certain fluids are not available.
• The process fluid being measured would normally clog the pressure measuring element.
• The process fluid in the measuring element might freeze due to changes in ambient temperatures.
A diaphragm assembly fabricated of materials that will withstand various corrosive media encountered, separates the measuring element from the process fluid. Since the space between the diaphragm and the measuring element is solidly filled with liquid, any movement of the dia­phragm caused by a change in the process pressure will be indicated by the instrument.
Ashcroft diaphragm seals are normally mounted directly to the socket of an instrument. A flexible stainless steel armored line assembly, is avail­able for mounting the gauge at some point away from the seal location to provide easy reading or to limit the temperature at the gauge to 150°F maximum.
Diaphragm seals (isolators) with filled, capillary line assemblies are another good solution to the problem of hot liquid and gas lines. Due to the small diameter of the flexible line (capillary) a five foot line length will usually assure that the temperature of the gauge connection does not exceed 150°F. This solution is also superior to a siphon on steam service where the water filled siphon might freeze.
Consult factory for guidance in product selection Phone (203) 378-8281 or visit our web site at
www.ashcroft.com
Consult factory for guidance in product selection Phone (203) 378-8281 or visit our web site at www.ashcroft.com
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Ashcroft® Accessories
265264
Ashcroft® Accessories
ELECTRIC WARNING CONTACTS
The Ashcroft® 2265 electric contact is an ideal accessory to turn on a signal light, sound an alarm, or operate a pump or valve. The contacts can easily be set so that a circuit can be closed or opened at a desired pressure or temperature. Settings can be easily made in the field without removing the instrument from service. Contact adjustment is made externally with a removable key to make the instrument virtually tamper proof. The contact is designed for easy installation on Types 1279, 1377 and 1379 Duragauge pressure gauges (either stem or flush mounted), Type 1125 differential pressure gauges, or Type 600A Duratemp dial thermometers. Contacts are equipped with adjustable magnets to eliminate chatter caused by vibration. A plug-in connector with five feet of electrical cable is standard.
CONVERSION KIT
For field converting 41⁄2˝ 1279(*)S and
1
4
2˝ and 6˝ 1379(*)S Duragauge® gauges to a sealed case design suitable for either hermetic sealing or liquid filling. Kit includes (Typical A1280 kit shown):
• O-ring for front case seal.
• Acrylic window.
• Elastomeric diaphragm (Buna-N) for
rear case seal.
• Glass filled polypropylene threaded
ring for rear of case.
• 302 stainless steel rear cover
and mounting screws.
• 303 stainless steel and Monel
throttle screws.
HOW TO ORDER THIS CONVERSION KIT
FOR:
1
2˝ 1279, lower connected –
4 order part no. 101A202-01.
1
2˝ 1279, back connected –
4 order part no. 101A2023-01.
1
2˝ 1379, lower connected –
4 order type A1280 Kit.
1
2˝ 1379, back connected –
4 order type A1283 Kit.
˝ 1379, lower & back connected –
6 order type A1284 Kit.
Availability Use with Code Ashcroft Description 45 60 Model No. 4 Dial Dial
1279 Duragauge X X X 1377 pressure X X — X 1379 gauge X X X X 1125 D/P gauge X X X X
600A-02 Duratemp X X — X 600A-03 remote X X X X 600A-04 thermometer X X X X
(1)
Flush mounting requires type 1278 flush mounting ring.
All specifications are subject to change without notice.
Model Code Contact arrangements
XED High and low contact
XEE Double high contact
2265
XEF Double low contact
XEG “OFF” at low and high, and “ON” in between
“O” Ring
1
2˝ 6˝
Acrylic Window
Threaded Ring
Surface
Mounting
Stem Flush
(1)
(1)
Flush
ELECTRICAL CONTACT SWITCHING CAPACITY
250V Maximum Voltage 30 WDC Maximum Switching Power 50 VA AC Maximum Switching Power 1A Maximum Current
Indicating accuracy of Ashcroft Duragauge, above 300 psi with contact: Pointer not carrying contact – 1.0%. Pointer carrying contact – 1.5%. For ranges below 30 psi, add an additional 1⁄2% to indicating accuracies.
Elastomeric Diaphragm With Integral “O” Ring
Rear Cover
1
2
/2˝ & 31/2˝ TYPE 1009 DURALIFE TOOLS
1
2
/2˝ Ring wrench
old design PN 266B135-01
31/2˝ Ring wrench old design PN 266B134-01
TYPE A-1285
Pointer puller body P/N 292A133-01
Pointer puller screw/pin P/N 112A381-01
31/2˝ Ring removal current design PN 101B221-01
Span wrench old design P/N 266A137-01
TYPE A-1286
21/2˝ Ring removal current design PN 101B221-02
1
2
/2˝ & 31/2˝ Nest old design
PN 266B136-01
TYPE A-1285
Ring Wrench – 41⁄2˝
(For installing front threaded rings in
1
4
TYPE A-1286
Ring Wrench – 6˝
(For installing front threaded rings in 6˝ Duragauge gauge)
Pointer staker P/N 188A101-01
2˝ Duragauge gauge)
1
3
/2˝ Nest current design
PN 101B220-01
1
2
/2˝ Nest current design
PN 101B220-02
Consult factory for guidance in product selection Phone (203) 378-8281 or visit our web site at
www.ashcroft.com
Consult factory for guidance in product selection Phone (203) 378-8281 or visit our web site at www.ashcroft.com
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267266
TYPE A-1287
Cone Tool
For installing diaphragm and garter spring on back connected liquid-filled or hermetic sealed Duragauge
®
gauges.
TOOLS
Hand Jack Set – gauge pointer remover and a pointer set to secure pointer to the shaft. Type No. 3220.
Gauge Tool Kit – A complete kit for gauge maintenance. Includes hand jack set, screw driver, five reamers, pin vise holder, wiggler and tweezer all packed in a neat carrying case. Ideal for a gauge maintenance shop. Type No. 1105T.
COCKS
• 1⁄4˝ brass Tee Handle Cock
No. 1092 – Wgt. 3 oz.
1
4˝ brass Lever Handle Union Cock
No. 1094 – Wgt. 10 oz.
1
4˝ brass Lever Handle Cock
No. 1095 – Wgt. 4 oz.
• All rated 100 psi air.
TEST GAUGE CARRYING CASE
This rugged blow-molded high-density polyethylene carrying case accom­modates the standard 4 Ashcroft Type 1082 analog test gauge. It accepts both lower and back connect gauges. A foam insert protects the gauge when not in use. Type No. 2505.
1
2,˝ 6 & 81⁄2˝
TYPE A-1287
TYPE NO. 1095
TYPE NO. 3220
Ashcroft® Accessories
TYPE NO. 1094
TYPE NO. 1105T
TYPE NO. 1092
Options for Process, Stainless Steel, Test and Industrial Pressure Gauges
CODE DESCRIPTION PRESSURE GAUGE TYPE
˝)
2
/
1
2 1
DURAGAUGE GAUGES
1259
XLL PLUS! Performance
XBF WaII mounting bracket
XFW Back flange XFF Front flange  
XUC U-clamp    XLJ Dry liquid-fillable gauge  XOS Overload stop STD XVS Underload stop  STD XTS Throttle screw  XTU Throttle plug  XS4 Slotted link movement (decrease)  XRJ Slotted link (increase)  XAP Adjustable pointer  XMP Micrometer pointer STD STD  XSH Red set hand stationary  XEO Red set hand adjustable  XEP Maximum pointer  XEQ Minimum pointer  XPD Plastic window  STD STD XSG Safety glass XRG Regular glass STD STD STD STD STD XDA Dial marking  XNN Paper tag  XNH Stainless steel tag  XAB Absolute pressure  XAJ 1⁄2% optional accuracy STD STD  XAN 1% optional accuracy STD STD  XBD Black dial  X6B Oxygen-cleaned gauges (gaseous)  XTB Tip bleed   XED High and low electric contacts XEE Double high-electric contacts XEF Double low-electric contacts
XEG Electric contacts off at low or high and in-between XGV Silicone-filled gauge
XGX Halocarbon-filled gauge XCH Carrying handle XC4 Calibration Chart
NOTES:
The options listed above are only a partial listing. For other options on these or other pressure instruments please call the factory for availability. (1) Available on 63mm and 100mm. (2) Available on 40mm and 50mm. Standard window material is glass for 40/50mm 1008S. (3) Standard 63 & 100mm.
˝, 3 /
1009 (2
˝, 6˝)
2
/
1
1009 (4
TEST GAUGES
1008S
(1)
(3)
STD
(3)
STD
(2)
STD
1490/1495 SERIES
1010, 1017, 1220
Consult factory for guidance in product selection Phone (203) 378-8281 or visit our web site at
www.ashcroft.com
Consult factory for guidance in product selection Phone (203) 378-8281 or visit our web site at www.ashcroft.com
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Ashcroft® Options
STATIONARY RED SET HAND
Stationary Red Set Hand
to indicate a specific pressure. Ring must be removed to move the hand.
MAXIMUM POINTER
OVERLOAD STOP SPECIAL DIAL
Overload Stop
to protect gauge system against extreme overpressure.
VACUUM STOP
Special Dial
ranges different from standards, or custom artwork, available on application.
OPTIONAL WINDOWS
Maximum Pointer
available for gauges 4
1
2˝ size and larger. Indicates maximum pressure attained. Can be reset by a knob on outside of window.
TIP BLEEDER
TIP BLEED
These bleeders allow trapped air to be
removed from the Bourdon tube. They can also be used for back-flushing or clean­ing the system. The tip bleed is available with 316 stainless steel systems. It is accessible by removing the pressure relief back. Tip bleeders are available to 23,000 psi. The capillary bleeder provides an external case connection to the internals
Vacuum Stop
to protect low range gauges against vacuum.
CAPILLARY BLEEDER
CAPILLARY BLEED
of the Bourdon tube. It may be used as a pressure testing tap for gauge inspection without removing the gauge from service. Capillary bleeders are available in bottom connected gauges only. The capillary bleeder is available in 300 Series stainless steel and limited to 4
1
/2˝ 1379(S)S case with 316 stainless steel system. Capillary bleeders are available to 1000 psi.
Plastic Disc – optional for glass window Laminated Safety Glass – optional for
glass window Nonglare Glass – optional for glass window
TYPE 1278M FLUSH MOUNTING RING
Gauge Ring A “B”-Three Screws Size O.D. Dia. (inches) (inches) (inches) Size
1
4
2 6.000 5.625 #10-24 x 15⁄8˝
6 7.765 7.25
1
4-20 x 11⁄2˝
Used to flush-mount gauge types 1188, 1220, 1279 and 1379. Standard finish is black; polished stainless steel finish is available at an extra charge, 4
1
2˝ and 6.˝
Consult factory for guidance in product selection Phone (203) 378-8281 or visit our web site at
www.ashcroft.com
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