Key Specifications / Parameters
Part Number: 21B9340X012
Product Type: Anti‑extrusion ring / backup ring
Material: Carbon‑filled PEEK (or similar high‑performance polymer) for elevated temperature/pressure service
Application: Prevents extrusion of sealing material (e.g., PTFE seal or soft seat) in the valve trim stack under high differential pressure/temperature service
Typical Fitment: Included in parts tables for Fisher ET/EAT valves (e.g., NPS 2 size in some “above 232 °C / 450 °F” service)
Service Conditions: Intended for elevated temperature and pressure service where standard backup rings would not suffice
Role in Assembly: Positioned just beneath the seal ring (or adjacent to packing) so that when the seal attempts to extrude into a gap, the anti‑extrusion ring blocks that path and maintains seal integrity
Key Specifications / Parameters
Part Number: 12B7100X132
Product Type: Gasket Set (includes at least the bonnet gasket and the seat ring gasket)
Intended Valve Rating: High pressure (Class 2500) service in the Fisher HP/HPA valve series
Material / Construction: The valve manual notes gasket sets for HP/HPA use “N06600/Graphite” for CL1500 and for CL2500 a corresponding set (which the X132 suffix indicates) — thus likely a nickel alloy (e.g., N06600) winding with graphite filler or equivalent high‐performance gasket material
Fitment: Typical for valve sizes NPS 1 (as per spare parts table) in the valve series; the table lists 12B7100X132 for “2 (std)” CL2500 valves (globe/angle) for HP and HPA valves
Application: When servicing or replacing major sealing surfaces (body/bonnet, seat ring) in HP/HPA valves in demanding service (high pressure, high temperature)
Key Specifications / Parameters
Part Number: 29A9221X012
Product Type: Gasket, spiral‑wound, metallic (metal wound + filler)
Material: Metal wound (Monel) with silver plating or finish
Intended Application: Seat ring or body flange sealing in Fisher EH/EHT series valves for high pressure (Class 2500) service
Fitment Example: For 8″ Class 2500 size valves (as listed in aftermarket listings)
Description Detail: “Gasket, Monel/Silver Plated, 8″ CL 2500 Type EH” per aftermarket supplier listing
Key Specifications / Parameters
Part Number: 11A9727X012 (alternate suffixes exist for higher service temperatures: 11A9727X022, 11A9727X032)
Product Type: Piston ring, graphite (part of the trim internal components)
Application: Used in NPS 8 × 6 valve bodies of the EWN/EW‑1 series (sliding stem with cage‑guiding), especially for steam or non‑oxidizing service up to ~600 °F (316 °C) for the “X012” suffix version.
Service Temperature Limit (for X012 version): Up to ~316 °C (600 °F) in steam or non‑oxidizing service.
Material: Graphite ring construction (serving as a low‑friction wear surface)
Legacy / Trim Use: Found in the parts list as “piston ring, graphite” for certain cage levels of the EWN/EW‑1 valve family.
Key Specifications / Parameters
Part Number: 19A7469X012
Product Type: Spiral‑wound gasket, seat ring gasket
Typical Valve Size Fitment: NPS 8 and NPS 10 (as listed in associated manual for EH/EHT series)
Pressure/Rating Fitment: Class 2500 service (i.e., very high pressure)
Gasket Dimensions as Listed: 5.69″ × 6.56″ × 0.175″ (approx) — inner diameter 5.69 in, outer diameter 6.56 in, thickness 0.175 in
Material Construction: Stainless steel winding with graphite (or Inconel/Graphite) filler for resilience under high temperature/pressure
Application: Seat ring interface sealing in heavy industrial control valves, to ensure tight shut‑off and prevent seat ring leakage
Key Specifications / Parameters
Parameter Description / Value
Part Number 19A2545X012
Product Type Gasket
Approximate Size ~2.81 in × 3.44 in × 0.03 in (≈ 71.4 mm × 87.4 mm × 0.76 mm)
Intended Use Sealing interface in Fisher valve body/bonnet or internal component assemblies
Material Sheet gasket material (likely metallic or compressed non‑metallic sheet) – exact composition not specified
Application Replacement/spare part for maintenance of Fisher control valves
Key Specifications / Parameters
Part Number: 19A2542X012
Product Type: Gasket / gasket‑sealing element
Approximate Dimensions: ~1.72 in × 2.22 in × 0.03 in (approximately 43.7 mm × 56.4 mm × 0.76 mm) as indicated in parts listing.
Application: Used in Fisher valve body/bonnet interface assemblies (for certain valve sizes in the EH series)
Material: Typically a flat gasket material, likely metal or compressible sheet type per valve manufacturer standard (exact compound not specified in the listing)
Typical Usage: Spare part for maintenance/repair of Fisher valves, may be associated with NPS 2, CL intermediate assemblies (as per export listing)
Key Specifications / Parameters
Part Number: 2N126902202
Product Type: Diaphragm for pneumatic actuator (Type 657, Size 70)
Material: Nitrile elastomer (commonly called NBR)
Actuator Size Compatibility: Size 70 (also referred to the Type 657 actuator, size “70/87”)
Physical Size: Approximate diameter 21‑1/8 inches (~537 mm) with 28 mounting holes (per aftermarket listing)
Application: Replacement part for Fisher Size 70 pneumatic actuator units in industrial valve assemblies
Status: Listed as replacement/aftermarket part and may support legacy builds
Key Specifications / Parameters
Parameter Description / Value
Part Number 24494T001
Product Type Packing kit, coil‑spring loaded
Packing Material PTFE (polytetrafluoroethylene)
Packing Design Coil spring‑loaded assembly, with spacer to establish height
Application Re‑packing the stem passage/stuffing‑box in sliding‑stem valves
Intended Benefit Maintains compression of packing under thermal cycles, wear
Key Specifications / Parameters
Parameter Detail
Model 3722
Function Electro‑pneumatic converter (4‑20 mA → pneumatic)
Input Signal Standard: 4‑20 mA DC (with maximum compliance ≤ 30 VDC)
Pneumatic Output Signal 0.2 to 1.0 bar (3 to 15 psig) typically
Supply (Pneumatic) Pressure Up to ~10.3 bar (150 psig) or maximum pressure rating of actuator, whichever is lower
Operating Temperature Standard ambient; versions with hazardous‑area approvals rated for about –40 °C to +82 °C
Hazardous‑Area Ratings Certified for ATEX, FM, CSA, IECEx depending on build
Mounting Mounts on the base of the 3710 pneumatic positioner
Materials Case and internal parts built for industrial service, resistant to environment and vibration
Usage/Application For precise valve positioning in process control systems (pneumatic actuator + positioner combo)