Page 6 / 45
REV. STV20110519
1.3.2 Actuators
The valve is provided with the following actuator types:
Plastic Pneumatic Actuator 12 (1/2”) to 76 (3”)
The plastic pneumatic actuator is made of PPE (polyphenylene ether) polymer.
The actuators are sealed for life and are not serviceable.
The actuator is provided as spring to close/air to open (normally closed).
Figure 4: Plastic Pneumatic Actuators
Stainless Steel Pneumatic Actuator 12 (1/2”), 25 (1”), and 38 (1 ½”)
The pneumatically operated actuator for Sterivalve
®
has a stainless steel cover but it is not
autoclavable. The actuator is mounted on the housing with a clamp.
The stainless steel pneumatic actuator is available in two versions:
S-A, where the designation S-A indicates:
Spring closed, Air open
A-A, where the designation A-A indicates:
Air closed, Air open
Figure 5: Stainless Steel Pneumatic Actuator 12 (1/2"), 25 (1"), & 38 (1-1/2")