Product Details
Rotork YTC Limit Switch Box Series (YT-850M, YT-870P, YT-875P,
YT-870D)
Product Introduction
The Rotork YTC Limit Switch Box Series (YT-850M, YT-870P, YT-875P,
YT-870D) is a range of pneumatic valve accessories designed to
monitor and indicate valve position in industrial systems.
Manufactured in Korea and certified with CCC, these limit switch
boxes ensure precise feedback for valve actuation, suitable for
both linear and rotary valve applications. Engineered for safety
and reliability, they feature durable construction and easy
configuration, making them ideal for process control in oil & gas,
chemical, and manufacturing sectors.
Product Features
Pneumatic Valve Position Monitoring:
Monitors valve open/closed status and provides electrical feedback
signals for control systems.
Compatible with pneumatic actuators for linear (YT-850M) and rotary
(YT-870P/D, YT-875P) valve operations.
Safety-Critical Design:
Compliance with safety regulations; requires protective equipment
during installation.
Pressure adjustment bolts with securing nuts to prevent unintended
changes.
Warning against impact damage to maintain operational integrity.
Reliable Operation:
Requires clean air supply for consistent performance.
Periodic condensate drainage via bottom drain plug for maintenance.
Exhaust design for safe air release to atmosphere.
Versatile Models:
YT-850M: Suited for linear valve applications.
YT-870P/D, YT-875P: Optimized for rotary valves (ball, butterfly,
etc.).
Industrial Compliance:
CCC certification for safety and quality.
Designed for use within specified pressure and environmental
limits.
Easy Installation & Maintenance:
Clear safety instructions for installation and operation.
Field-adjustable settings for valve position feedback.
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.