Schubert & Salzer – Type 4040 Ball Sector Valve

Need help selecting your product?

Send an Email Call (804) 550-7143

Overview

The Schubert & Salzer Type 4040 is a pneumatically actuated ball sector valve engineered for precision control and on/off service in demanding process environments. Designed to handle contaminated, abrasive, viscous, and pasty media, it delivers exceptional performance where conventional control valves fall short.

With an extraordinary rangeability of 300:1 and high Cv values up to 4,454, the Type 4040 provides reliable, repeatable flow control across a wide range of process conditions. Available in sizes from 1″ through 12″, it is constructed of stainless steel throughout and integrates directly with standard pneumatic quarter-turn actuators via DIN/ISO 5211 mounting.

Features & Benefits

Extraordinary rangeability of 300:1 — provides stable, accurate control across a wide flow range, reducing the need for multiple valve sizes
High Cv values up to 4,454 — supports high-capacity flow applications with minimal pressure drop
Almost equal percentage flow characteristic — delivers predictable, linear control response throughout the operating range
Suitable for abrasive, contaminated, and viscous media — ball sector geometry resists clogging and wear from challenging process fluids
Easily exchangeable seat ring — simplifies maintenance and reduces downtime when seat replacement is needed
DIN/ISO 5211 actuator mounting — allows straightforward retrofitting of pneumatic quarter-turn actuators without special adapters
Optional volume booster Type 4090 (6″ and larger) — reduces valve response time for faster process control
Optional ATEX-rated explosion-proof configuration — available for use in hazardous area classifications
Wafer-type body design (1″–10″) — compact face-to-face dimensions simplify installation between standard pipe flanges
Single-acting or double-acting pneumatic actuator options — supports both fail-safe and standard control configurations
Compliant with TA Luft / ISO 15848-1 — meets stringent fugitive emissions requirements

Technical Specifications

Nominal sizes: 1″ through 12″
Body design: Wafer type (1″–10″); flange connection (12″)
Body material: CF8M (1.4408) cast parts; 316L (1.4404) turned parts
Bearing shaft material: 1.4122 stainless steel
Bearing type: High-temperature plain bearing
Flow characteristic: Almost equal percentage
Rangeability: 300:1
Maximum Cv: 4,439 (12″)
Nominal pressure — 1″–2″: up to 580 psi (ANSI 150, ANSI 300)
Nominal pressure — 2½”–4″: up to 363 psi (ANSI 150)
Nominal pressure — 5″–12″: up to 232 psi (ANSI 150)
Media temperature: -40°F to +428°F (depending on sealing material)
Ambient temperature: -4°F to +176°F (special versions available on request)
Vacuum capability: Up to 1.48″ Hg
Actuator connection: DIN/ISO 5211 mounting kit; pilot pressure 5–6 bar
Seat ring options: PTFE, PEEK, or Stellite
Seal options: Viton, EPDM, NBR, FFKM, PFA-Silicone
Leakage class (PTFE/PEEK seat): IV-S1 per IEC 60534-4
Shaft sealing: PTFE packing
Shaft seal emission class: ISO 15848-1 (series KS2, DN25–DN250)
Approvals: TA Luft / ISO 15848-1; EC Declaration of Conformity; UKCA Declaration of Conformity; SIL manufacturer’s declaration
Optional ATEX (non-electrical): II 2G Ex h IIC T6…T2 X Gb; II 2D Ex h IIIC 85°C…220°C X Db

Applications

Control and on/off service with contaminated, abrasive, or viscous process fluids
Slurry and suspension flow control in chemical and industrial processes
Pasty media handling in food, beverage, and pharmaceutical production
High-rangeability control applications requiring stable low-flow and high-flow performance
Gas control in industrial and energy applications
Processes requiring low fugitive emissions compliance (TA Luft, ISO 15848-1)
Hazardous area installations requiring ATEX-rated equipment
Pulp and paper, water treatment, chemical, and metallurgical industries

Type 4040 Accessories

Type 8049 Digital Positioner – Integrated positioner available in 2-wire, 4-wire, Ex-Pro explosion-proof, IO-Link, and IPC (integrated process controller) configurations; mounts per VDI standard
Type 4090 Volume Booster – Optional volume booster for 6″ and larger valves to reduce actuator response time
Limit Switch – Position feedback device for open/closed status indication
Position Feedback Transmitter – Continuous position feedback for process control systems
Filter Pressure Regulator – Air supply conditioning for pneumatic actuator reliability
Pilot Valve (Solenoid) – For on/off or fail-safe actuator control; external solenoid valves available (1,500 NL rated)
Hand Wheel Gear Box – Manual override option for 5″–12″ sizes with stem extension
Stem Extension – Available for 1″–4″ valves for insulated pipe or confined space installations
Reduced Cv Trim – Ball sector inserts to reduce Cv to 63%, 40%, 25%, 16%, or 6.3% of full capacity